Verdius Energy Blog

How Much Does an Energy Audit or Assessment Cost?

Fri, 14 Mar 2025 22:52:28 GMT

If you’re looking into an energy audit for your building, one of the first questions you’ll ask is: How much does it cost? The answer varies depending on factors like the building type, size, and complexity of its systems. Most firms in the industry charge a fixed price per square foot , but at Verdius Energy, we take a different approach—one that aligns cost with value rather than an arbitrary formula.

Industry Standard: Price Per-Square-Foot

Most energy consulting companies price their services at a per-square-foot rate , which typically ranges from $0.05 to $0.50 per square foot . The cost depends on:

Building Type – Multifamily, office buildings, and industrial facilities require different levels of effort.
Complexity of Systems – Buildings with advanced HVAC, building automation, expansive hydronic systems, or industrial processes require more analysis.
Level of Detail – A basic Level 1 audit is less expensive than a comprehensive Level 2 or Level 3 audit.

For example, a 100,000-square-foot commercial building might pay between $5,000 for a Level I audit and $50,000 for a Level III audit based on standard pricing models.

The Problem with Per-Square-Foot Pricing

While per-square-foot pricing is simple, it doesn’t always reflect the actual effort required or value of the deliverable. Some buildings require extensive analysis, while others can be assessed swiftly. You shouldn’t have to pay the same rate as a high-rise office building if your facility is relatively simple.

Additionally, the goal of an energy audit isn’t just compliance —it’s identifying real opportunities to reduce energy use, cut costs, and improve performance . A pricing model that ignores delivered value often leads to audits that check the boxes rather than producing actionable recommendations.

Verdius Energy: A Value-Based Approach

At Verdius Energy, we don’t believe in arbitrary per-square-foot pricing . Instead, we price our services based on delivered value —meaning we align cost with the complexity of the building systems, scope of assessment, and impact of the potential projects rather than just the size of the building.

Our approach ensures that:

Large but simple buildings aren’t overcharged.
Complex buildings receive the in-depth analysis they need.
The assessment cost aligns with the potential energy and cost savings.

For example, a mid-rise multifamily building with primarily split-system heat pumps may pay significantly less than a commercial facility with an intricate building automation system and central plant —even if they are the same square footage.

All our projects consider building size , use type , and level of detail , however, extra emphasis is put on these factors:

Ownership of Equipment – In many cases, tenants, not the building owner, may own and maintain their HVAC equipment. If a tenant is not involved or their equipment is beyond the scope of the assessment, we shouldn't price the project as if it is, right?
Current Building Performance – A poorly performing building has a lot more room for improvement compared to a brand new, up-to-code building.
Needs of Ownership & Management – Is the building team shooting for net zero by 2035, or do they just need an assessment for municipal compliance?

Transparency & Fair Pricing

When you work with Verdius Energy, we provide a fair price every time based on the effort required to deliver meaningful recommendations . We focus on ensuring that your investment in our consulting pays off—not just in compliance but in real operational savings and efficiency improvements .

If you’re considering an energy assessment and want to understand what it will actually cost for your building , reach out to us. We’ll give you a straightforward assessment proposal that reflects real value—not just square footage .

�� Contact us today to learn more about energy audits for your building.

Understanding HVAC Lifecycles: When to Repair vs. When to Replace

Fri, 14 Mar 2025 19:42:09 GMT

Commercial HVAC systems are a major investment, and building owners often face a critical decision: repair the existing system or invest in a full replacement? While repairs can extend the life of your equipment, there comes a point where replacing the unit is the smarter financial and operational choice. In this post, we’ll break down key factors that determine when to repair and when to replace your HVAC system.

1. The Typical HVAC Lifecycle

Most commercial HVAC systems last 15-25 years , depending on maintenance, usage, and environmental factors. Some of these are driven primarily by Here’s a general breakdown of common equipment lifespans:

While these are general guidelines, efficiency, maintenance costs, and technological advancements play a role in deciding when to upgrade.

With that being said, systems and components can age differently . We call the two aging mechanisms cycle aging and calendar aging .

2. Key Signs It’s Time to Repair

If your HVAC system is experiencing issues but is still within its expected lifespan, repairs may be the best choice. Consider repairing if:

✅ The issue is minor (e.g., a faulty sensor, valve replacement, or refrigerant leak)
✅ Repair costs are less than 30% of the cost of a new system
✅ Your energy bills are stable and reasonable
✅ The unit is under 15 years old
✅ The problem is due to lack of maintenance (e.g., clogged filters, dirty coils)

Example Scenario:
An 8-year-old packaged rooftop unit is struggling due to a failing compressor. If replacing the compressor is significantly cheaper than a new unit, and the system still meets the building’s needs, repairing makes sense .

3. When It’s Time to Replace

Sometimes, repairing is just delaying the inevitable —and costing you more in the long run. You should consider replacing your system if:

�� The unit's age is within 80% of its expected lifespan, greater
�� Repairs exceed 50% of the replacement cost
�� Your energy bills are rising despite no major operational changes
�� The system uses outdated refrigerants (like R-22, which is now phased out and can be cost-prohibitive to procure)
�� The unit struggles to maintain temperature or humidity levels

Example Scenario:
A 22-year-old chiller has had multiple breakdowns, and a recent failure requires a $30,000 repair. A new, energy-efficient chiller would reduce operating costs significantly and qualify for utility rebates. Replacing the unit is the smarter financial choice.

4. Cost Analysis: Repair vs. Replacement

A good rule of thumb: if the cost of a major repair exceeds 50% of the cost of a new unit, replacement is the better option .

Let’s break down this example of R-22 rooftop unit from the 2000's:

In this case, the replacement provides a longer service life, better energy efficiency, and pays for itself within five years .

5. Benefits of Upgrading Your HVAC System

If a replacement is needed, the benefits go beyond just avoiding repair costs:

✔️ Lower Energy Bills – Newer units are often 20-40% more efficient, thanks to variable speed fans, compressors, and new refrigerant developments
✔️ Rebates & Incentives – Many utilities offer financial incentives for high-efficiency HVAC upgrades
✔️ Better Indoor Air Quality – Improved filtration and ventilation
✔️ Less Downtime – Fewer emergency repairs and disruptions
✔️ Smart Controls & Automation – Modern units integrate with building automation systems for optimized performance

6. How Verdius Energy Can Help

At Verdius Energy , we specialize in helping building owners navigate HVAC replacement and retrofit decisions with a focus on lifecycle cost, sustainability, and occupant comfort. Our energy audits and compliance services ensure that your building operates efficiently while avoiding costly fines and unnecessary expenses .

Proactive planning for HVAC repairs and replacements helps reduce unexpected costs, improve building performance, and ensure compliance with local energy ordinances. If you’re unsure about your next step, Verdius Energy is here to guide you .

Would you like a consultation? Schedule a call with us today.

Verdius Energy Expands to Orlando: Your BEWES Compliance Partner

Mon, 03 Feb 2025 18:14:15 GMT

�� Orlando property owners, it’s time to take action.

The Building Energy & Water Efficiency Strategy (BEWES) is in full swing, requiring thousands of commercial and multifamily buildings to benchmark energy and water use, undergo audits or retro-commissioning, and submit reports—or face financial penalties .

At Verdius Energy, we’re excited to announce our official expansion into Orlando , bringing our proven energy compliance services to help property owners avoid fines, maximize savings, and streamline the entire BEWES process.

In Atlanta, we’re the only firm specializing in Atlanta CBEEO compliance, and we are bringing this energy to Orlando —so whether you need benchmarking, an audit, retro-commissioning, or an audit exemption , we handle everything for you.

What is BEWES and Why Does It Matter?

The Building Energy & Water Efficiency Strategy is a City of Orlando ordinance that requires buildings ≥50,000 sq. ft. to:

✅ Benchmark energy & water use annually using ENERGY STAR Portfolio Manager
✅ C omplete an energy audit or retro-commissioning every 5 years, starting in 2025, if the building underperforms
✅ Submit transparency and compliance reports to avoid penalties

Ignoring these rules? Expect fines and enforcement actions.

But smart property owners see BEWES as an opportunity for the community, not a burden.

�� $208 million in projected energy savings by 2030
�� 561 new high-wage jobs created in Orlando’s energy sector
�� 900 million gallons of water saved
�� $64 million in healthcare savings from better air quality

Orlando’s largest buildings waste millions on inefficient energy use . BEWES isn’t just about compliance—it’s a chance to cut costs, increase asset value, and boost NOI.

How Verdius Energy Makes BEWES Compliance Easy

We’ve helped hundreds of commercial buildings navigate energy compliance regulations in Atlanta, and now, we’re bringing that same turnkey approach to Orlando.

�� Step 1: Benchmarking & Reporting
We track & submit your building’s energy & water data to the city— required annually. Most building owners don’t realize that benchmarking alone can cut energy waste by 2.4% per year .

�� Step 2: Energy Audits & Retro-Commissioning
If your building ranks in the lower 50% of efficiency , you must complete an energy audit or retro-commissioning every five years, starting in 2025.

✔ Energy Audits – Identify inefficiencies, operational improvements & upgrades using findings from the field and utility data analysis
✔ Retro-Commissioning – Optimize existing control systems, with a typical 1-year payback

�� Step 3: Audit Exemption Assistance
Not every building needs an audit—but most owners don’t know they qualify for an exemption . We help you:

✔ Determine if your building meets exemption criteria
✔ File the necessary paperwork to the City of Orlando
✔ Skip the audit and save money

�� Step 4: Financial Incentives & Penalty Protection
BEWES compliance comes with major financial opportunities . We help clients access:

✔ PACE financing, rebates, & utility incentives to fund efficiency upgrades
✔ Strategies to reduce operational expenses and increase NOI
✔ Guaranteed compliance —so you never get fined

Why Work With Verdius Energy?

BEWES compliance isn’t optional —but choosing the right partner makes all the difference.

✔ Orlando’s Only BEWES Compliance Specialists – We know the rules, deadlines, and city processes inside and out.
✔ Certified Engineers & Energy Managers – Our team includes Professional Engineers (PEs) and Certified Energy Managers (CEMs) .
✔ Full-Service Compliance – No paperwork, no city runaround, no risk of missed deadlines. We handle it all.
✔ Huge ROI – The average building saves $5.30 for every $1 invested in compliance.
✔ We Find Every Possible Savings Opportunity – Whether it’s an audit exemption, retro-commissioning, or financing incentives , we make sure you never spend a dollar more than necessary .

What’s Next? Take Action Now Before Deadlines Hit

The City of Orlando isn’t waiting. Compliance is required—and penalties are real.

But if you work with Verdius Energy , you won’t have to worry.

�� We guarantee compliance, secure every available financial incentive, and turn BEWES into a profit opportunity for your building.

�� Don’t wait until you’re facing a fine. Get ahead of the deadlines NOW.

�� Book a Free Consultation Today ��

Welcome to the future of energy efficiency in Orlando. Let’s build a smarter, more sustainable city—together. ��

Atlanta Energy Efficiency Ordinance Audit Exemption Pathways

Thu, 09 Jan 2025 13:38:11 GMT

There are several ways Atlanta buildings may be exempt from the energy audit mandate. In certain cases, eligible buildings may have their deadlines extended or deferred.

Audit Exemptions

Buildings covered under the Atlanta Commercial Building Energy Efficiency Ordinance (CBEEO) may be exempt from the audit requirement based on either performance or building conditions. An audit exemption simply exempts the covered building from the the audit requirement for the year. Buildings will need to revisit exemption eligibility and refile the exemption application every year.

Performance-based exemptions

EPA Energy Star certification for 2 of the last 3 years.
Would have been Energy Star certified for 2 of the last 3 years if offered, but Energy Star certification does not exist for your building type.
Energy Star score has improved 15 points, or weather-normalized source energy use intensity (EUI) has been reduced by 15% in the last five years.
Meets the most recent LEED for Existing Buildings: Operations and Maintenance (EBOM) certification for 2 of the last 3 years.

Building condition exemptions

No occupancy certification or no temporary occupancy certification.
Demolition permit issued, and demolition has commenced.
Building in financial hardship.
Building has no utility services.

Audit Extensions

Buildings may have their audit deadlines extended for various reasons. Buildings will have to make further extensions every year, however there are some limit to the number of extensions per building.

Good faith effort made to procure an energy audit, but failed to obtain (limit of 2).
Building in financial hardship.
Less than 50% of rentable floor area is occupied by tenants AND the number of reduced-cost audits has declined substantially year-to-year (limit of 3).
Converted from industrial to commercial (audit due 5 years after conversion).

Audit Deferments

New buildings under ten years old may have their first audit deferred to the next cycle. For example, a building completed in 2024, and assigned an ABID (see here ) ending in 6, would not have to conduct an energy audit in 2026, and instead would have their first audit deferred to 2036, the next cycle.

Building Performance Standards (BPS) and Their Impact on Buildings Across The Nation

Thu, 05 Sep 2024 21:45:00 GMT

These standards are a growing challenge for many organizations

At Verdius Energy, we understand the growing concern surrounding Building Performance Standards (BPS) and their impact on buildings across the nation. As experts in energy and resource efficiency, we're here to guide you through these new regulations and help you develop effective strategies for compliance.

The landscape of energy performance standards and carbon reduction initiatives is rapidly evolving. With several states and cities already adopting BPS and more expected to follow suit in 2025 and beyond, it's crucial for building owners and operators to stay ahead of the curve. Our team at Verdius Energy is dedicated to helping you navigate these changes and ensure your buildings meet or exceed the new requirements.

Currently, BPS legislation has been approved in:

- Washington, Colorado, Oregon, and Maryland (statewide)

- New York City

- Boston

- Washington DC

- Denver

- Seattle

Additionally, over 30 jurisdictions nationwide are part of a national BPS coalition, indicating that more locations are likely to implement similar standards soon.

What do these standards mean for your buildings?

BPS regulations are more stringent than previous mandates, such as energy audits or benchmarking. These performance-based standards require buildings to reduce energy usage to specific target levels or meet carbon reduction thresholds over time. The standards will become increasingly strict in the coming years, with some areas aiming for net-zero emissions.

Compliance may involve a combination of energy reduction strategies, electrification initiatives, renewable energy adoption, or even the purchase of renewable energy credits in some cases. It's essential to understand the specific requirements and potential penalties for non-compliance in each jurisdiction, as they can be significant.

How can Verdius Energy help?

Our team of experienced energy engineers and analysts is well-equipped to assist you with:

1. Staying informed about new legislation as it's passed

2. Assessing the current status of your buildings in affected locations

3. Developing tailored strategies and pathways for compliance

4. Informing you about potential penalties associated with non-compliance

At Verdius Energy, we recommend a phased approach to developing compliance strategies. We work closely with facility managers and owners to determine the best course of action and the level of effort required for each building.

Our expertise in energy efficiency best practices and our in-depth knowledge of the changing national landscape make us uniquely qualified to evaluate various types of facilities and create appropriate roadmaps for compliance across the country.

Are you unsure if these regulations apply to your buildings or what steps you need to take to comply? You're not alone. Many owners and operators are grappling with these same challenges. The potential penalties for non-compliance can be severe, and it can be overwhelming to know where to begin.

Don't let the complexity of BPS regulations intimidate you. At Verdius Energy, we're here to help you navigate these requirements and guide you through the process. Our team is ready to assist you in achieving your energy and resource efficiency goals while ensuring compliance with new standards.

Remember, you don't have to face these challenges alone. Partner with Verdius Energy to develop a comprehensive strategy for meeting Building Performance Standards and optimizing your building's energy performance. Contact us today to learn how we can help you stay ahead of regulations and maximize your energy efficiency.

Is Your Building Covered Under the Atlanta Commercial Building Energy Efficiency Ordinance?

Wed, 07 Aug 2024 20:18:18 GMT

Here's How to Find Out

The City of Atlanta has made significant strides in promoting sustainability and energy efficiency through its Commercial Building Energy Efficiency Ordinance. This ordinance aims to reduce energy consumption and greenhouse gas emissions, contributing to a greener, more sustainable city. If you own or manage a commercial building in Atlanta, you need to understand whether your property falls under the purview of this ordinance. Here’s a guide to help you determine if your building is covered and what steps you need to take to comply.

What is the Atlanta Commercial Building Energy Efficiency Ordinance?

The Atlanta Commercial Building Energy Efficiency Ordinance, enacted in 2015, mandates that certain commercial buildings in the city benchmark their energy and water consumption annually, an conduct an energy assessment every 10 years. The goal is to improve energy efficiency across the city by requiring transparency and encouraging owners to implement energy-saving measures.

Key Criteria for Coverage

To determine if your building is covered under the ordinance, you need to consider the following criteria:

1. Building Size

The ordinance applies to commercial buildings with a gross floor area of 25,000 square feet or more. This includes office buildings, retail spaces, hotels, mixed-use buildings, and yes, multifamily as well.

2. Property Use Type

The ordinance primarily targets commercial properties. This includes office buildings, retail spaces, hotels, mixed-use buildings, and yes, multifamily as well. However, multifamily below 4 units is exempt (however, these are hardly ever greater than 25,000 square feet). Single family homes are exempt.

3. Location

Your building must be within the city limits of Atlanta. Properties located outside the municipal boundaries are not subject to the

ordinance, regardless of size or use type.

If you meet all of these criteria, your building should be assigned an Atlanta Building ID (ABID) number

Atlanta provides resources and tools on their official website ( https://atlantabuildingbenchmarking.wordpress.com/ ) to help building owners understand the ordinance and determine their status. The city’s provides an online building database (pictured above) to identify your property and ABID: https://web.atlantaga.gov/coabuildings/#/

Compliance Requirements

If your building is covered under the ordinance, you must:

1. Benchmark Energy and Water Use:

Utilize tools like ENERGY STAR Portfolio Manager to track and report your building’s energy and water consumption annually.

2. Submit Reports:

Ensure timely submission of benchmarking reports to the City of Atlanta. Deadlines are typically set for June 1st each year.

3. Disclose Information:

Publicly disclose energy and water benchmarking data as required. Transparency is a key component of the ordinance to drive improvements in building efficiency.

Benefits of Compliance

Complying with the Atlanta Commercial Building Energy Efficiency Ordinance not only helps the city achieve its sustainability goals but also offers several benefits to building owners:

- Cost Savings: Enhanced energy efficiency can lead to significant reductions in utility bills.

- Increased Property Value: Energy-efficient buildings are more attractive to tenants and buyers, potentially increasing property value.

- Environmental Impact: Contributing to the reduction of greenhouse gas emissions aligns your business with global sustainability efforts, enhancing your corporate responsibility profile.

Conclusion

Understanding whether your building is covered under the Atlanta Commercial Building Energy Efficiency Ordinance is the first step toward compliance and reaping the associated benefits. By evaluating your building’s size, use type, and location, you can determine your obligations under the ordinance. Engaging with resources and professionals will further ensure that you meet all requirements, positioning your property as a leader in energy efficiency.

For personalized assistance with your energy efficiency goals and compliance with the Atlanta ordinance, reach out to Verdius Energy. Our team of experts is here to help you navigate the complexities of the ordinance and share options for you to increase the performance for your building.

Contact Verdius Energy today to get started on your path to energy efficiency and sustainability!

Case Study: Upgrading an old Makeup Air Unit to a Heat Pump

Tue, 11 Jun 2024 20:15:44 GMT

Transforming Fresh Air Delivery with Modern Heat Pump Technology

Project Overview: A 20-story residential high-rise in Atlanta underwent an ASHRAE Level II Energy and Water Assessment conducted by Verdius Energy. As part of the assessment, the existing makeup air unit was identified for replacement with a more efficient heat pump system. This measure was highlighted due to its significant potential for energy savings and operational efficiency improvements.

Existing System:

Make: Aaon
Model: RM-025-8-0
Year Installed: 2005
Cooling capacity: 25 Tons
Efficiency: 14.2 SEER
Heating capacity: 75 kW
COP: 1
Supply fan: 3 HP
Outside airflow: 4,500 CFM

Identified Issues:

Although the existing unit provided necessary ventilation, it is energy-intensive due to its reliance on electric resistance heating.
Over time, the unit's components, despite replacements and maintenance, have aged and operate less efficiently compared to modern HVAC technology.

Considerations:

The building exhaust is local and distributed throughout the building, so a heat recovery system using an enthalpy wheel could not be used.
The location of the unit on the roof meant it could only be replaced via airlift. Since the unit would need replacement anyway, the marginal cost of installing a heat pump was considered, instead of the fully burdened cost.

Proposed Solution:

Replacement with a modulating heat pump makeup air unit of similar size and capacity.
Increased cooling efficiency, from 14.2 SEER to 22.5 SEER, a 50% increase.
Increased heating efficiency, from 3.1 HSPF to 10.1 HSPF, a 3X increase due to the use of heat pump technology.
Benefits:
Energy Efficiency: Heat pump technology offers higher efficiency by transferring heat from outside, instead of generating it through electric resistance.
Operational Savings: Reduced electrical consumption for heating and cooling, leading to lower utility bills.
Environmental Impact: Proper disposal of ozone-depleting R-22 refrigerant and decreased greenhouse gas emissions due to improved efficiency.

Savings and Performance Metrics:

Electricity savings: 105,000 kWh/year
Annual cost savings: $9,800
Project cost: $15,600 (marginal cost of heat pump over baseline)
Simple payback period (SPP): 1.6 years

Incentives and Rebates:

Pending rebate through Georgia Power Custom Projects and Building Tune-Up programs, estimated at $5,000, reducing the net project cost to $4,800.

Additionally, the project qualified for a $20,000 Section 179D deduction.

Implementation Plan:

Solicitation: Prepared a design-build RFP and engaged qualified HVAC contractors with experience in high-rises and airlifts.
Timeline: To minimize disruption, the replacement was scheduled during the shoulder season.
Verification: Post-installation commissioning and measurement & verification (M&V) to ensure the unit operates as expected and achieves the projected savings.

Conclusion: Upgrading the makeup air unit to a heat pump instead of a code-minimum replacement represents a strategic investment in energy efficiency. The significant cost savings, combined with a short payback period and environmental benefits, made this measure a high-priority recommendation from the energy assessment. This project not only aligns with the property's sustainability goals but also enhances the building's operational performance and residents' comfort.

Navigating the Atlanta Commercial Building Energy Efficiency Ordinance

Tue, 16 Jan 2024 15:00:00 GMT

A Guide for Savvy Property Managers & Owners

The Atlanta Commercial Building Energy Efficiency Ordinance is making waves, and if you're a building owner, property manager or facility manager, it's time to sit up and take notice. Why, you ask? Well, let me break it down for you.

Unraveling the Atlanta Commercial Building Energy Efficiency Ordinance

What is it?

The Atlanta Commercial Building Energy Efficiency Ordinance (CBEEO) is a set of regulations aimed at enhancing energy performance in commercial buildings (this includes multifamily buildings as well). Introduced to promote sustainability and reduce the environmental impact of our structures, this ordinance places certain responsibilities on building owners to meet specific energy efficiency standards.

Why Should You Care?

Now, you might be wondering, "Why should I care about another piece of bureaucratic jargon?" Well, my friend, caring about this ordinance is caring about your bottom line, the health of your building, and the environment. Let me tell you why:

Cost Savings:

Investing in energy-efficient practices can lead to significant cost savings over time, especially as the cost of natural gas, electricity and water increase every year. Think about it – reduced energy consumption means lower utility bills. A little padding in your annual budget never hurt.

Market Value Boost:

Energy-efficient buildings are in demand, and their market value tends to be higher. Implementing energy-saving measures not only attracts environmentally conscious occupants, but also adds value to your property when it's time to sell or lease.

Compliance Matters:

Ignoring the ordinance isn't an option. Non-compliance can result in fines and penalties. It's better to get ahead of the game, meet the standards, and avoid unnecessary headaches down the road.

What Should You Do About It?

Double Check:

Before we get too far, ensure you need to comply with the CBEEO. Buildings under 25,000 square feet are exempt, as well as properties in financial hardship. A full list of exemptions for benchmarking can be found on our l ist of and the Exemptions and Extension Request Form . If your building is covered (non-exempt) under the CBEEO, then your building is assigned a Atlanta Building ID (ABID), which can be found on this database , and this GIS map . Reach out to Verdius Energy or the City of Atlanta if you need help!

Engage with Professionals:

Don't go at it alone. Engage with energy efficiency professionals who can guide you through the process. They can help you navigate the intricacies of the ordinance and recommend tailored solutions for your building. Verdius Energy can walk you through the entire process to ensure compliance with the City of Atlanta.

Benchmark:

Start by ensuring your benchmarking is current on Energy Star Portfolio Manager . No idea what I'm talking about? Benchmarking is the process of tracking energy consumption to compare over time and against peer buildings. Energy Star Portfolio Manager (ESPM) is the go-to for benchmarking in North America, and it's free because it is run by the EPA. By updating your building's Energy Star profile with its ABID, ESPM can report all necessary benchmarking information directly to the City of Atlanta for compliance with this part of the ordinance. The City of Atlanta uses this information to track CBEEO program performance.

Benchmarking is a core Verdius Energy service , so don't hesitate to reach out if you'd like some help with this one.

Energy Audits:

Under the ordinance, covered buildings must conduct an energy audit every 10 years. The year of the audit corresponds to the last digit of the ABID, so if you're building's ABID is 123456, your decennial energy audit is due at the end of 2026, 2036, and so on. The energy audit identifies areas where improvements can be made, whether retrofitting HVAC systems, optimizing controls, improving insulation, or upgrading lighting. These recommendations are not compulsory; the point is to have helpful information to make the best business decisions. The City of Atlanta may use recommendations to develop clean energy policies or incentive programs.

Click here to get an energy audit proposal from Verdius Energy.

Also, make sure you review this guide on selecting an energy auditor , no matter who you decide to work with.

Implement Efficiency Measures:

Once you know where improvements are needed, consider prioritizing measures based on financial performance. Verdius Energy reports provide a phased implementation schedule to optimize project performance. In addition, consider bundling projects with other non-energy-related projects already planned or in the pipeline. Georgia Power also offers a set of incentives that may help some projects across the finish line. Of course, you don't have to do any of the projects immediately, or at all.

Keep Up with Maintenance:

Regular maintenance is key to sustaining energy efficiency. Ensure that your building systems are well-maintained and operating at peak efficiency. This not only keeps you compliant but also extends the lifespan of your equipment.

Stay Informed:

The landscape of energy efficiency is ever-evolving. Stay informed about updates to the ordinance, new technologies, and incentive programs that might benefit your building. Being proactive will always be in your best interest.

Wrapping Up:

So, there you have it – a crash course on why the Atlanta Commercial Building Energy Efficiency Ordinance is something you should care about. Embracing energy efficiency isn't just a nod to environmental consciousness; it's a strategic move that can enhance your building's performance, save money, and set your property apart in the market.

The Smart Strategy Behind Heating and Cooling Setbacks

Tue, 09 Jan 2024 22:45:00 GMT

A thermostat setback refers to the intentional adjustment of temperature settings on a thermostat (or group of thermostats, or even a whole building) to a lower or higher level during specific periods when a building or space is unoccupied or when occupants are asleep.

The purpose of a setback is to reduce energy consumption by allowing the heating or cooling system to operate less frequently or at a lower capacity when the indoor conditions require less active temperature control. This energy-saving strategy is commonly employed to optimize the balance between comfort and efficiency, ensuring that energy is used only when necessary.

Reduced Energy Consumption:

The primary advantage of setbacks lie in their ability to curb energy consumption. When a space is unoccupied or when occupants are not actively using a specific area, there is no need for the HVAC system to maintain a constant temperature. By allowing the temperature to fluctuate slightly during these periods, energy consumption is significantly reduced, leading to lower utility bills and decreased overall environmental impact.

There are two factors that impact the energy savings harvested from setbacks:

The magnitude of the setback - This is how "far" the setback temperature is compared to occupied temperature setpoints. For example, if thermostats maintain the temperature at 72°F normally, a 65°F setback would have a magnitude of 7°F, whereas a 68°F degree setback has a magnitude of 4°F.
The duration of the setback - how long the setback is maintained. Is the setback just overnight? Or does it include weekends as well? The duration of setbacks will depend heavily on the occupancy schedule of the building.

Generally, energy savings are approximately proportional to the magnitude of the setback and the duration of the setback.

Magnitude of setback (°F from normal setpoint) x duration of setback (hours/week) ∝ energy savings

Other Benefits:

Optimized HVAC Operation:

HVAC systems operate most efficiently when they're not constantly cycling on and off. Setbacks enable the HVAC system to work in longer, more stable cycles, avoiding the frequent starts and stops that can contribute to increased wear and tear of motors, compressors, actuators, and valves. This optimized operation not only extends the lifespan of the equipment but also ensures it runs at peak efficiency when needed.

Thermal Inertia and Recovery:

Buildings possess thermal inertia, meaning they retain heat or coolness even after the HVAC system has been turned off. By strategically implementing setbacks, the indoor temperature is allowed to drift slightly from the desired setpoint. This approach utilizes the thermal inertia of the building, reducing the need for immediate heating or cooling when occupants return, as the space can recover to the desired temperature more efficiently.

Zone Control Strategies:

Advanced HVAC systems equipped with zone control capabilities can benefit greatly from setbacks. By selectively adjusting temperatures in different zones based on occupancy patterns, setbacks can be tailored to specific areas within a building, ensuring precise climate control where and when it's needed. This level of customization enhances energy efficiency by avoiding unnecessary heating or cooling in unoccupied zones.

Even further, occupancy-based control of setpoints and setbacks can use zone-level occupancy sensors to automatically shift between the occupied setpoint and the unoccupied setback temperatures. This has made its way into consumer-grade tech like the Nest and Ecobee thermostats, and is slowly making it's way into commercial building automation systems.

Check Your Thermostats:

Take a moment to do this. Do they have a schedule or setback that aligns with occupancy? If not, it may be something to do right now that could save you hundreds or even thousands of dollars with little to no comfort impact. If you have a reason on the books for not using setbacks, it may be time to revisit that justification.

ASHRAE 90.1-2019 recommends a heating setback of 10°F below the occupied heating setpoint, and a cooling setback of 5°F above the occupied cooling setpoint. You do not have to start with that! Try 2°F, or even 1°F at first, see how it goes, and increment from there.

Want to go beyond setbacks and save even more energy? Get in touch with Verdius Energy today to learn about all the services we offer.

Conclusion:

The merits of heating and cooling setbacks are rooted in their ability to optimize energy consumption, improve HVAC system efficiency, leverage thermal inertia, and enable advanced zone control strategies. By incorporating setbacks into your HVAC controls, you not only contribute to a more sustainable, energy-efficient future, but also enjoy the tangible benefits of reduced energy bills, and prolonged equipment lifespan.

Freeze Protection for Renters in Apartments

Wed, 28 Dec 2022 21:43:44 GMT

Modern apartments still suffer from freeze risks, especially in sunbelt climates like Atlanta were deep freezes are uncommon

Apartment living has its conveniences over homeownership, but you still have to take care of a few things when it gets super cold.

Pipes freeze in apartment complexes usually because they are located in an exterior wall. When the temperature outside drops below freezing, it is common for the temperature in the wall cavity to drop below freezing too, depending on the building quality.

Additionally, if the water is not moving through the pipes, the pipes can freeze. A frozen pipe doesn't necessarily burst a pipe, but if it happens over and over, the pipe will eventually burst.

Here are some steps you can take to protect your apartment from flooding due to a burst pipe:

Do not turn off the heat, even if you are away. A setting of at least 60°F is recommended to prevent pipes from freezing.

If you have plumbing, such as sinks, toilets, and bath faucets located on an exterior wall, let the faucets drip (both hot and cold) to ensure water is flowing through them and doesn't remain stagnant. Stagnant water freezes, flowing water does not.

Keep cabinet doors open to allow heat to circulate around pipes.

If you have outdoor plumbing fixtures, such as hose connections, disconnect the hoses and cover the hose bib with a frost-proof foam cap.

If you notice any frozen pipes, call your apartment complex maintenance team right away. Do not try to thaw frozen pipes yourself, as this can cause them to burst.

By taking these steps, you can help prevent freezing and bursting pipes in your apartment.

City of Atlanta Benchmarking & Energy Audit Ordinance

Wed, 13 Jul 2022 17:45:30 GMT

The City of Atlanta passed a Building Benchmarking and Energy Audit Ordinance on May 30, 2017.

The purpose of the benchmarking ordinance is to encourage energy efficiency by increasing the awareness of building energy performance, as measured by ENERGYSTAR Portfolio Manager.

An energy audit is an assessment carried out by a qualified professional that will recommend low and no-cost operational improvements as well as high-ROI capital improvements that will reduce overall energy usage in a facility.

Understanding your building's performance is critical for effective energy management. Benchmarking in ENERGY STAR Portfolio Manager helps you understand the performance of your buildings or portfolios of buildings over time. It allows you to compare your building to similar buildings nationwide, track changes over time, and identify underperforming buildings. In fact, it has been shown that just benchmarking on a consistent basis results in an average annual energy savings of over 2% per year, just through behavior changes.

The ordinance requires commercial buildings over 25,000 gross square feet to perform benchmarking every year, and perform an energy assessment every ten years. This information helps building owners improve efficiency and reduce costs by identifying areas for improvement.

The City of Atlanta wants to help property owners and managers save energy.

The City of Atlanta wants to help property owners and managers save energy. Energy savings are good for the environment, the pocketbook, and the city by reducing pollution from fossil fuels. They also save money on utility bills for tenants that use all or part of a building’s heating and cooling system.

There are several ways to improve energy efficiency at your property:

Upgrade lighting fixtures with bulbs that use less electricity.
Replace windows with better insulating glass or install storm windows if needed.
Seal air leaks around doors and windows with weather stripping or caulk; add insulation in walls; seal ductwork where it enters or leaves your building (you may need an HVAC contractor).
Install automated temperature control systems so that you don't have to set thermostats manually each day (you may need an HVAC contractor).

Conclusion

This ordinance will help property owners and managers save energy. The City of Atlanta wants to help property owners and managers save energy by benchmarking their buildings against similar buildings nationwide, tracking changes over time, and identifying underperforming buildings.

If your building requires an energy assessment this year, or just need to get started on benchmarking, our Atlanta-Based Certified Energy Managers and Professional Engineers are standing by. Contact Verdius Energy today and learn more about our benchmarking and energy assessment services here .

Carbon Leadership Forum's MEP 2040 Challenge

Wed, 13 Jul 2022 17:18:54 GMT

“All systems engineers shall advocate for and achieve net zero carbon in their projects: operational carbon by 2030 and embodied carbon by 2040.”

Carbon Leadership Forum (CLF) members are manufacturers, MEP firms and specialists who recognize the importance of reducing the impact of buildings on climate change. They want to work together to solve industry challenges and drive change.

Now they've launched their MEP 2040 Challenge: how can we reduce carbon emissions from heating, cooling and ventilation? This starts with operational carbon—the CO2 emitted by a facility as it operates each year—but involves embodied carbon from materials used in construction and other elements like transportation costs; net zero projects that offset all remaining emissions through green technology; and more efficient appliances.

Operational Carbon

Operational Carbon is the total amount of greenhouse gases associated with your business, across all activities and locations. The main sources of Operational Carbon are:

emissions from energy use
emissions from vehicle fleets (including employee travel)
waste disposal and recycling activities
refrigerants in air conditioning units

In order to measure your operational carbon footprint, you need to gather data on the following:

how much energy you use in a year (kilowatt hours per month)
where you get your electricity or gas from (if not generated on site)
what types of fuel are used for heating/cooling systems
how many vehicles are in use by employees or contractors on a monthly basis
what percentage of waste is recycled onsite each month

Embodied Carbon

Embodied carbon is the carbon footprint of the materials and products that are used in a project. It's also known as indirect or embedded emissions, which means it includes all of the emissions associated with building a product or system—whether those emissions occur now or later (like when a solar panel breaks down).

Embodied carbon is important because it makes up almost half of an object's life cycle CO2 emissions. For example, if you're designing an office building, you need to account for all the embodied emissions related to constructing it, such as manufacturing and shipping concrete panels or windows from far away; buying furniture made from exotic wood shipped across oceans; or transporting employees who live beyond walking distance from work by automobile rather than public transportation. Because these factors all contribute significantly to greenhouse gas production over time (and therefore long-term climate change), they must be considered when creating sustainable buildings—especially since buildings often stay around for decades after their construction wraps up!

How can facilities engineers and property managers participate?

Check with your HVAC and MEP contractors if they are MEP 2040 signatories
Retro-commission your building HVAC systems
Look into utility rebate programs for large equipment replacement
Consider building electrification and renewable energy systems to eliminate onsite fossil fuel use
Choose the most efficient lighting, heating, cooling and ventilation equipment
Request Environmental Product Declarations (EPDs) in project specifications for MEP system components.
Request HVAC installers and contractors use low-GWP refrigerant when replacing systems to reduce or eliminate GHG emissions from refrigerants.
Verdius can help you with all of these -- don't hesitate to contact us!

Is turning down your hot water temperature really worth it?

Wed, 20 May 2020 00:00:00 GMT

Lets jump in hot water with Ian

One of the laundry list items found in many energy savings articles is turning down your hot water heater target temperature. I really don’t think many people follow this advice because 90% of the homes and businesses I visit, the water temperature is in the range of 130-140 degrees. I can tell just because I need to turn on the cold water tap more than just a tad. I believe people ignore this advice because it is thought of one of those nuisance energy savings measures, similar to unplugging cell phone chargers when not in use, or turning off the ceiling fan when you leave a room.

Turning down the hot water heater thermostat from 140 degrees to 120 degrees may have a small impact, but it can add up over time. The US Department of Energy website states that turning down the temperature can save between 4% and 22% of your water heating energy cost (not total household energy cost… The website is misleading). Now, that’s a pretty big range, but if you have a traditional, mass-produced electric tank water heater found in most every value-engineered building in the US, I believe the savings of a thermostat setpoint adjustment can be on the order of 10%-20% of your water heating bill.

Video of Me Adjusting Water Heater

Nearly every apartment I’ve lived in, and now my current house, I’ve set the water heating temperature to 120 degrees after burning myself the day I moved in. I can do this because I take short, 10 minute showers, stagger my showers with my girlfriend, and really, really enjoy only needing to use the hot water faucet. That is by far the best part – not having to fiddle with the cold water to get the temperature just right. By the time the water has reached the shower, it has lost about 5 degrees in the pipes, providing me with a balmy 115 degree shower. Another thing I also do, and may be taking it too far in the eyes of many, is that I turn off the water when I soap up.

With a temperature any lower than 120 degrees, you may run the slightest risk of developing a L egionella pneumophilia colony in your hot water tank, which you probably don’t want. I wouldn’t worry about this if you keep the temperature at or above 120 degrees.

Compelling reasons to adjust:

Reduce scalding hot temperatures

Reduce standby heating losses

Reduce pipe losses

Considerations before adjusting:

May run out of hot water (Stagger your showers, people!)

Ever so slightest possibility of developing Legionnaires Disease if you are aggressive with the setpoint.

May have problems getting dishes squeaky clean in dish washing machines that don’t have booster heaters (most all do these days)

Teenagers complaining

Further Measures To Consider

Unfortunately, if you have an electric tank water heater, there is not much more you can do to reduce your water heating energy consumption, except take cold showers (not too bad, actually) or just forego showers altogether (please no). I’m going to contradict myself now and present a few measures I plan to implement at my home soon.

WIfi Connected water heater control (<$100)

I currently turn off my water heater when we leave the house for more than a day. This eliminates standby electricity use while we are gone, but I would like to eliminate this any time we leave the house, whether it be a quick trip to the post office or a long trip to the beach. I would also really like to NOT THINK ABOUT IT.

I came across this wifi enabled switch that can handle a 40 amp load seen by a water heater. It doesn’t have any geofencing capability but I am hoping it may include some kind of Nest, Alexa or Apple Homekit integration in the future, allowing it to piggyback off of existing smart home infrastructure. Right now you can set a schedule for this timer, which is about all I need, but I really want to hold out for the smart home integration.

Heat Pump Water Heater ($1,200-$3,000)

I also may just hold out for a heat pump water heater that is 3 times more efficient than electric resistance heat alone, and has integrated geofencing controls.

Read some more (Free)

In the meantime, there are some other measures you can take a look at: waterheatertimer.org has covered it well.

How much money will a water heater timer save

9 ways to save with a water heater

One more thing. I forgot to cover gas water heaters. If you have a tank-style gas water heater, turning it down will reduce energy consumption, but gas water heaters are already pretty cheap to run. Tankless gas water heaters are even cheaper to run and setpoint adjustments have little impact on these guys. If you have any kind of water heater and it is overdue for replacement, go with an electric heat pump water heater since they are getting better every day, and electrification is the way to go.

Merits of Adding Attic Insulation in a 1990's Condo Unit

Wed, 29 Apr 2020 00:00:00 GMT

Insulation is the opposite of sexy, but taking a good look at it may pay off

Recently I had the pleasure of working with a young couple who own a single story condo unit in the clear lake area of Houston Texas. They reached out for a free remote energy audit and mentioned that they use a lot more electricity than when they lived in Florida in a similar style condo unit. The home is about 1,000 square feet, and built in the 1990s. A primary complaint they brought up was that the house would get uncomfortably hot, the air conditioning would cycle on, and the house would be cooled and repeat. This would occur at a reasonable setpoint of 76 degrees. Immediately, I realized the homes air conditioning was oversized. It is a 2.5 ton split system air conditioner that is original to construction. Obviously, the 25 year old unit should be replaced with a right-sized as soon as possible, but the couple insisted to wait until it failed and that lower cost measures be taken in the meantime.

The condo unit had attic access and I took at a look at the insulation in the attic. Not to my surprise there appeared to be minimal insulation. The attic insulation was blown-in cellulose fiber, about two to 2 ½ inches deep which is way below R-30 code-mandated thickness. Either the construction company skimped on the insulation (not uncommon in multi-family construction) or we had some serious settling occur over the past 25 years. I believe it was a bit of both. Adding insulation to this attic space was going to be an important part of this customer’s solution package. It also occurred to me that the air conditioning may have actually been sized properly given how little insulation there was!

Below I will present the calculations needed to justify installing additional attic insulation. The home has 1,080 square feet of attic area. A significant chunk of that area is the vaulted ceiling in the living room, which has fiberglass batts insulating the vaulted area and the knee-walls. A few lengths of the batt insulation on the knee walls were falling off, so there is only drywall insulating the 130 degree attic - which is typical for a hot sunny day - from the conditioned space below. As stated earlier, there is about 2 inches of insulation. Some areas have 4 inches, some have none, but on average, let’s go with two inches. Below is a chart detailing the attic surfaces:

From this data we can determine the R-value of the entire attic space -- 243 BTU/°F·h. Since hot moves to cold, if our attic is 130 degrees and our space is 76 degrees, the space is gaining heat through the attic at a rate of 13,000 BTUs per hour, which is a little over one ton of cooling. That’s right, about 40% of our cooling during a hot day is used just to offset the heat gain from the attic.

Now, let’s add 4 inches of blown-in cellulose insulation to the insulated areas, and 6 inches to the uninsulated attic knee wall area. We get an attic space R-Value of 56 BTU/°F·h. We have reduced our heat transfer through the attic to 3,000 BTUs per hour, a reduction of nearly 80%.

That’s great, but what about when it’s not a hot sunny day in June? We need to figure out the total heat transfer throughout the year and then we can determine how many BTUs are moving down through the attic.

For this, we are going to use cooling and heating degree days. Degree days are a measure of ambient temperature difference from a set balance point, usually 65 degrees, summed over the course of a year. If for example, the average daily temperature of today, May 7th is 82 degrees, and the balance point is 65 degrees, we have 17 cooling degree days today. The total annual degree days would be the sum of this calculation over the course of a year. Houston has an average of 3,719 cooling degree days and 876 heating degree days according to the Houston Hobby airport weather station. We can use these numbers for our calculation, however, we need to take into account that the attic is usually a bit hotter than the ambient temperature. In order to do that, I will change the balance point from 65 to 55 degrees, which assumes the attic is, on average 10 degrees hotter than the outdoors on heating degree days. With our new balance point, we have 6746 cooling degree days, which almost doubles our total cooling degree days. A ten degree difference in the attic really changes things. In order to determine the total heat gain through the attic over the course of a year, we must find multiply our 243 BTU/°F·h by 6746 °F·days/year and 24 h/day.

Holy Moses, that’s a big number. Let’s get that in to something more understandable. 12,000 BTUs per hour is one ton heat transfer. That means we have 3,279 ton-hours of heat transfer through the attic over the course of a year, which equates to 3,279 ton-hours of air conditioning use over the course of a year. Dividing this buy 2.5 tons, the size of our air conditioner, we find that the air conditioner is running 1,311 hours per year just to remove the heat gain coming through the attic.

I’ve performed the same calculation of heat transfer with the new addition of insulation. The air conditioning use is reduced to 756 ton-hours. We can convert this number into actual kWh consumed per year using the SEER rating of the air conditioner. The unit is rated at SEER 10, but due to age, I am assuming it is a SEER 9 at this point. Given this information, 4,371 kWh per year are consumed cooling the heat coming through the attic as it is. With new insulation installed, we reduce this to 1,007 kWh, a 3,364 kWh reduction. At 10 cents per kWh, this equates to a $336 annual savings in energy cost.

But how much will this cost? That is an important factor that the client weighed in this case. The answer made the choice even more clear. 433 cubic feet of cellulose insulation are needed to achieve the insulation levels used in the calculations above. 25 cubic foot bundles of cellulose go for about $10 a bundle and 18 bundles are needed. Actual insulation material cost should came in right above $180 dollars, air sealing, labor and overhead costs are expected to be $500. The total all-in cost to the customer was $680 dollars, meaning this project will pay back in two years.

I will post a follow up once the project is completed and we should see some promising results in the coming months. In the meantime, check back weekly for new blog posts!

Verdius Energy Blog

How Much Does an Energy Audit or Assessment Cost?

Industry Standard: Price Per-Square-Foot

The Problem with Per-Square-Foot Pricing

Verdius Energy: A Value-Based Approach

Transparency & Fair Pricing

Understanding HVAC Lifecycles: When to Repair vs. When to Replace

1. The Typical HVAC Lifecycle

2. Key Signs It’s Time to Repair

3. When It’s Time to Replace

4. Cost Analysis: Repair vs. Replacement

5. Benefits of Upgrading Your HVAC System

6. How Verdius Energy Can Help

Verdius Energy Expands to Orlando: Your BEWES Compliance Partner

�� Orlando property owners, it’s time to take action.

What is BEWES and Why Does It Matter?

How Verdius Energy Makes BEWES Compliance Easy

Why Work With Verdius Energy?

What’s Next? Take Action Now Before Deadlines Hit

Atlanta Energy Efficiency Ordinance Audit Exemption Pathways

There are several ways Atlanta buildings may be exempt from the energy audit mandate. In certain cases, eligible buildings may have their deadlines extended or deferred.

Audit Exemptions

Performance-based exemptions

Building condition exemptions

Audit Extensions

Audit Deferments

Building Performance Standards (BPS) and Their Impact on Buildings Across The Nation

These standards are a growing challenge for many organizations

Currently, BPS legislation has been approved in:

What do these standards mean for your buildings?

How can Verdius Energy help?

Is Your Building Covered Under the Atlanta Commercial Building Energy Efficiency Ordinance?

Here's How to Find Out

What is the Atlanta Commercial Building Energy Efficiency Ordinance?

Key Criteria for Coverage

1. Building Size

2. Property Use Type

3. Location

Compliance Requirements

1. Benchmark Energy and Water Use:

2. Submit Reports:

3. Disclose Information:

Benefits of Compliance

Conclusion

Case Study: Upgrading an old Makeup Air Unit to a Heat Pump

Transforming Fresh Air Delivery with Modern Heat Pump Technology

Navigating the Atlanta Commercial Building Energy Efficiency Ordinance

A Guide for Savvy Property Managers & Owners

Unraveling the Atlanta Commercial Building Energy Efficiency Ordinance

What is it?

Why Should You Care?

What Should You Do About It?

Wrapping Up:

The Smart Strategy Behind Heating and Cooling Setbacks

Reduced Energy Consumption:

Other Benefits:

Optimized HVAC Operation:

Thermal Inertia and Recovery:

Zone Control Strategies:

Check Your Thermostats:

Conclusion:

Freeze Protection for Renters in Apartments

Modern apartments still suffer from freeze risks, especially in sunbelt climates like Atlanta were deep freezes are uncommon

City of Atlanta Benchmarking & Energy Audit Ordinance

The City of Atlanta passed a Building Benchmarking and Energy Audit Ordinance on May 30, 2017. ﻿

The City of Atlanta wants to help property owners and managers save energy.

Conclusion

Carbon Leadership Forum's MEP 2040 Challenge

“All systems engineers shall advocate for and achieve net zero carbon in their projects: operational carbon by 2030 and embodied carbon by 2040.”

Operational Carbon

Embodied Carbon

How can facilities engineers and property managers participate?

Is turning down your hot water temperature really worth it?

Lets jump in hot water with Ian

Merits of Adding Attic Insulation in a 1990's Condo Unit

Insulation is the opposite of sexy, but taking a good look at it may pay off

The City of Atlanta passed a Building Benchmarking and Energy Audit Ordinance on May 30, 2017.