Understanding ASHRAE Level Audits

DSC_7446 (2)EPCO performs energy audits, or energy assessments, for commercial businesses throughout Ohio. Depending on geographic region, there may be utility incentives to cover the cost of the audit. Not all energy audits are made equal, and it is essential to understand the various levels of audits available. The primary goals of an energy audit are to determine how the building energy systems are performing, how improvements can be made to enhance that performance, and how those improvements will affect the owner in both financial and non-financial factors.

Energy audits vary in depth and complexity, depending on a variety of factors including building energy systems configurations, project parameters, and the capabilities the energy auditor can provide. ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers) has defined three levels of audits that energy providers perform, which I will explain in greater detail.

ASHRAE Level 1 – Walk Through Analysis / Preliminary Audit

The ASHRAE Level-1 audit is the starting point for building energy optimization. This audit involves a review of the facility’s utility bills and operating data, a brief walk-through of the building and basic interviews with on-site operating personnel. This audit is intended to identify areas for potential energy improvements, understand the building configuration, and define the type and nature of energy systems. Your energy advisor should give you a short report detailing findings from the audit, which should identify an array of efficiency opportunities. Typically this report does not include detailed recommendations for improvement, with the exception of very visible operational and project flaws.

The ASHRAE Level-1 audit should help the energy team at a business establish a baseline for measuring energy improvements, and also give them an idea of how their building performs in relation to similar businesses. A common example can be found among many school systems. Often, they will have comprehensive controls in place for systems such as process cooling or heating. But, after years of evolving use, those control set points need to be recalibrated to align with existing facility use.

ASHRAE Level 2 – Energy Survey and Analysis

The ASHRAE Level-2 assessment builds upon the findings of Level-1, and evaluates the building energy systems in detail to define potential energy efficiency improvements. This should include the lighting, ventilation, building envelope, heating, and air conditioning (HVAC), domestic hot water (DHW), compressed air and process cooling or heating. This audit starts with a detailed energy cost and consumption analysis. Then, the assessment should evaluate air quality, lighting, humidity, temperature, ventilation, and other conditions that could influence energy performance or comfort of facility occupants. ASHRAE Level-2 should include in-depth discussions with the building management, ownership, and occupants to examine potential problem areas, and determine their goals for increasing energy efficiency.

Your energy advisor should provide you with a clear and concise report that includes a briefing to the building owner and management team, explaining a variety of Energy Efficiency Measures (EEMs) including operational changes, no-cost and low-cost measures, system controls and building automation modifications, and potential fiscal upgrades. The findings of this audit should also include performance metrics, as well as a method for the building owner to determine the next steps in proceeding with implementation of the plan. Anybody that hasn’t actively been involved with energy efficiency nor have an energy portfolio, we may put under the Level-2 umbrella. Very likely there is a cost associated with this audit, but depending on your geographic location, rebates may cover a good portion of it.

Recently, I had the opportunity to collaborate with a mid-size regional medical facility that asked us to complete an in-depth analysis regarding replacement of their existing HVAC system in exchange for a more efficient solution. Due to the complexity of the system and unique operation of the facility, equipment metering and engineering was required to identify the appropriate solution for the building’s needs. This required a cost, but the majority was covered through local utility incentives.

ASHRAE Level 3 – Detailed Analysis of Capital Intensive Modifications

The ASHRAE Level-3 audit is a very in-depth and detailed energy assessment. This audit involves data collection over the course of weeks or even months. Data loggers will monitor temperatures of affective space, lighting levels, pumps and motors operation, switching behavior, and other factors. This audit requires an intensive facility-wide assessment. We try to steer our clients away from this audit if at all possible, due to its high cost and length of time required. We would only perform this audit in specific situations. One such example would be businesses governed by strict regulations that mandate this level of reporting on an annual or semi-annual basis.

Conclusion

A carefully crafted energy plan will empower your business with the ability to more seamlessly manage your energy portfolio. At EPCO, we design a plan that factors each component of your specific energy fingerprint, including how you use energy, when it’s consumed, and most importantly, where you can save without disruption to your operation.  Whether you move forward immediately with each measure, or wait for a more opportune time, you will be better informed and prepared. For more information on energy planning, contact eauerbach@energyplanners.com or 216.559.4103

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Yes… Lighting is Your Low Hanging Fruit

Let’s say you’re the director of facilities for a local manufacturer or the business manager for a school district. By now, you’ve likely had a parade of salespeople knocking on your door to sell you a lighting retrofit. Each comes armed with a very similar pitch. Lighting technologies are the most advanced that they’ve ever been. ROIs are up and payback periods are down. And the most overused saying, lighting is your low hanging fruit.

In your job, you have to wade through all the gimmicky sales jargon and back of the envelope math to figure out what’s real and what’s a mirage. The difficulty is you wear many hats, and finding the time to learn the truth is challenging.

Having a clear understanding of your opportunity, along with a defined plan, will help streamline and simplify the process.

First, let’s be realistic. Just because a lighting retrofit reduces energy, doesn’t automatically mean it’s the highest and best use of your capital improvement dollars. As we have previously shared, you should start with a comprehensive facility audit. This will help to determine what projects, if any, you should focus on.

Assuming, lighting is a true cost-saving opportunity, you should understand what the current environment looks like. It is true that LED lighting efficiency is on the rise and costs have continued to decline.  This has made retrofitting your facility more economical than ever before.

However, lighting is no longer as simple as swapping out a light bulb. Advancements in lighting solutions have required the industry to move away from simple one-to-one replacements, opting instead for structured and thoughtful design. This is where it becomes imperative that you work with the right lighting firm that understands your specific needs.

Church Lighting

Many lighting firms still use antiquated methods for installing lighting. Worse yet, some firms attempt to sell you a solution you don’t need, simply to increase project costs. Ultimately, the lighting solution you choose should be unique and customized to your facility. It should incorporate the most efficient and effective design with products that maximize lumens and comfort for employees and guests of your facility.

Don’t be afraid to utilize a design-build process. Your energy advisor can work alongside you to create the right facility design and layout, and then solicit bids for the cost of the fixtures to ensure you receive a favorable market rate.

Opportunities for energy efficiency will continue to increase as technology improves. Surround yourself with a competent energy advisor that will ensure clear, transparent, and efficient energy solutions for you and your facility.

 

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Four Steps to Reducing Inefficiency in Your Building

Is your facility as energy efficient as it could be? How does your energy rates compare to current market conditions? Do you have equipment and systems needlessly using energy when off-cycle? These are more difficult questions to answer than most would think. Many clients I work with are wearing multiple hats each day. I am confident you are too. It’s extremely challenging for them to keep up on prevailing technologies or fluctuating rates while trying to juggle production schedules and personnel.

An essential tenant of the EPCO philosophy to energy management is having a comprehensive plan to guide you. Your energy plan should be a holistic approach to the energy consumption of your facility.  Utilizing a long-term lens, EPCO designs a plan that factors each component comprising your specific energy fingerprint. This includes how you use energy, when it’s consumed, and most importantly, where you can save without disruption to your operation. As great as this may sound, the next logical question is, how do I create this plan?

EPCO has simplified the process into an easily digestible four-step approach.

  1. Identify your pain points – Work alongside your energy advisor to understand, from your perspective, the energy-related issues you are facing. This could be as a simple as utility billing errors or ineffective lighting to more complex issues such as process cooling / heating and heat reclamation.
  2. Perform an ASHARAE Level Audit – A facility Audit is a great step towards realizing your simple payback. Whether it is an LED upgrade, automated controls, or mechanical equipment retrofit, an audit provides the facilities baseline data needed to understand your opportunities.
  3. Prioritize the Data – Following the audit, review the data to determine where the most substantial and relative savings exist. Cross reference the pain points you first identified with each proposed solution. Calculate what the capital costs are in relation to energy savings. And be sure to leverage incentive and financing opportunities.
  4. Draft and Execute Your Plan – Once you have determined the value and importance of each solution, your energy advisor can work with you to implement each identified energy savings opportunity. Start with the highest prospective paybacks so you can reinvest those savings into more energy intensive projects.

A carefully crafted energy plan will empower you with the ability to more seamlessly manage your energy portfolio. Whether you move forward immediately with each measure, or wait for a more opportune time, you will be better informed and prepared.

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