Energy reduction mandates like the one in Pennsylvania typically set a clear objective (e.g., Pennsylvania’s 21% reduction by 2025). The starting point—in PA’s case, energy consumed by all government facilities in 2017—is usually unknown and requires a substantial level of effort to determine and document.
When a mandate to reduce energy consumption or GHG emissions is enacted, how does a large, complex, decentralized organization answer the question: How much energy did we consume in our baseline year? Or what was our carbon footprint?
If your organization already maintains a centralized utility bill and energy information database, congratulations. You’re a member of a very small group. One state government, for example, reported that its utility bills are received and paid by approximately 120 separate agencies, making the collection, organization, and verification of the data quite difficult.
The latter scenario is common, and the decentralized processing makes it very challenging to get a big picture view and determine just how much energy the organization consumes. However, if you need to do it, here are some steps to get you started:
Those four steps might sound simple at first glance, but gathering all that data can be a major undertaking. Let’s examine some common challenges you may encounter while gathering your utility data:
When you’re working to establish your energy consumption baseline—the starting point—gathering the data isn’t enough. You must also verify that the data is correct. Don’t just assume the utility companies are perfect and don’t make mistakes. In fact, when you’re dealing with a large number of utility accounts, mistakes are bound to be made.
Here are steps you can take to ensure your data is complete and accurate:
Once again, these steps aren’t always as easy as they initially seem. Some common challenges you may experience while verifying your utility data include the following:
If you are challenged to meet a mandate, you could probably use some help. Instead of using up your team’s labor hours on this lengthy process, EnergyCAP can do it for you, freeing you up for higher-level planning and analysis.
EnergyCAP’s CAPture Services team can work with you to establish a plan for contacting your vendors or internal teams and gathering the historical billing data. After the identification of data sources and collection of the data, the CAPture Services team will then import the data into EnergyCAP and perform quality assurance testing to ensure accuracy, spot gaps in data, identify anomalies, audit the bills, and create follow-up flags on the potential issues.
EnergyCAP will continue to obtain and process your utility bills and can even resolve billing issues with your vendors, so you don’t have to. (Tip: When contracted about an incorrect bill, your vendor is likely to address it a bit more urgently if the bill has not yet been paid.) Additionally, once your bills are audited and approved, they can be delivered in an import-ready file to your AP system for payment, eliminating the need for redundant data entry.
While gathering and centralizing historical energy use and cost data can be a daunting task, it’s a required first step toward meeting an energy reduction mandate. After the historical data has been loaded into EnergyCAP and verified, an extensive library of reports, charts, and dashboards will provide the baseline data you need to begin your pursuit of the energy reduction mandate.
For more detailed information about centralized utility bill processing, please take a few minutes to read “A Primer on Utility Bill Processing.”
Part One covered the importance of establishing a baseline, as well as the challenges that come with centralizing and verifying a large organization’s substantial and diverse energy data. Here, in Part Two, we discuss ways you can use your now centralized data to identify energy- and cost-saving opportunities, including billing errors, malfunctioning meters, facility and utility account ownership issues, and others in pursuit of your reduction goals.
Benchmarking is the practice of comparing the energy use of peer facilities via specific criteria, such as use/cost per square foot, per day, per student, per room-night, per widget produced, and others.
Benchmarking is a quick way to develop a shortlist of potential energy hogs that warrant inspection for savings opportunities.
Following are commonly used benchmarking resources:
1. Utility Company Reports
Your utility vendors may provide regular reports that show how your energy use compares to similar utility company customers. They’re great because they’re free, and they give you a general idea of your building’s energy efficiency.
One drawback to these reports is that they don’t account for all the variables related to your energy use. They may alert you to potential issues, but they often don’t provide enough detail to help you take corrective action.
2. ENERGY STAR Ratings
While this step may not be a requirement of your specific energy reduction mandate, local municipalities often separately require that energy use data for facilities is submitted to ENERGY STAR’s Portfolio Manager application on a quarterly or annual basis. Facility ENERGY STAR scores are then required to be publicly accessible or at least available for review by potential buyers or tenants.
The Portfolio Manager application benchmarks buildings against their peers and assigns a score, or ranking, of 1–100. An ENERGY STAR building score of 75, for example, indicates that, from an energy efficiency perspective, the building performs better than 75% of its peers.
The ENERGY STAR score is a relatively straightforward way to evaluate facility energy consumption and communicate the performance of your entire portfolio compared to a large national database of facilities. Note that your buildings may not always perfectly align with ENERGY STAR categories, and not all building types are eligible for an ENERGY STAR rating.
3. Industry-Specific Benchmarking
It’s common for industries and trade groups to supply their own benchmarks. An industry-related benchmarking system is likely to be very relevant to your facility portfolio and, therefore, can be quite useful, assuming the sample size of peer facilities—similar building types, use, geographic location—is statistically significant.
4. Software Tools
Benchmarking is a feature you’ll often find in energy management software. For example, the Groups & Benchmarks feature in the EnergyCAP utility bill accounting and energy management software automates peer benchmarking and allows the user to benchmark facilities via custom or industry-specific factors, such as hours of operation or building occupancy.
You never want to pay for energy you didn’t use, which is why bill audits are so useful. Your organization’s utility bills are packed with data that can be inspected for errors, and identifying those errors can result in substantial cost savings. Utility bill audits typically fall into four categories:
1. Date Audits
As you might expect, date audits revolve around comparing utility bill date information. The start and end dates of your bills, the statement date, the due date, and the billing period length are all important dates to check.
We recommend that you begin your utility auditing process with a focus on date accuracy. Date audits that may reveal data entry errors or other billing-related issues include the following:
Date audits are useful because date-related errors lead to incorrect energy analytics and untrustworthy audit results. When you’re comparing different billing periods to determine the average daily use or average daily cost of a facility, it’s essential for all dates to be correct.
2. Energy Use Audits
Energy use audits expose incorrect meter reads, faulty meters, billing errors, and data entry errors. The first time you perform an energy use audit, you may reveal persistent issues and problems that can save your organization tens or even hundreds of thousands of dollars.
Here are some examples of energy use audits that may reveal billing issues:
3. Cost Audits
Cost audits can also help uncover faulty meters, billing errors, and data entry mistakes. They can be a bit trickier to perform, however, since utility rates can change significantly between billing periods due to electric demand, seasonality, use, and ratchet situations. Nevertheless, there are a few audits you can perform to check for savings opportunities:
4. Demand Audits
Demand audits only apply to electric bills, but they’re still very useful. Demand is the potential “peak use” (maximum kW) of a meter for a billing period. The electric supplier must be prepared to supply this demand at any time, and they often charge a rate premium based on this use that can impact your rates in future months.
You can reduce your peak energy use through retrofits, load reallocation, and other practices. For example, a school system can reduce its demand by using the Art department’s pottery kiln when the school’s kitchen is not in use.
Any industry that has flexibility when it comes to scheduling energy-intensive activities should make use of load reallocation.
Here are a couple important demand audits:
If utility bill data is the energy management world’s superhero, interval data is its critical sidekick. While utility bill data presents a valuable big picture view of energy use and cost, interval data zooms in to help you understand how much energy is being used and when.
Interval data is recorded by the vendor meter or through a self-installed submeter that tracks usage details in smaller increments. This enables you to ask and answer questions, such as:
If you notice irregularities during 15-, 30-, or 60-minute intervals, you can make adjustments that yield significant cost and energy savings. Analysis of interval data may also tip you off to equipment that is no longer operating efficiently. The data will help you build the case for purchasing more energy-efficient and environmentally friendly equipment.
At this stage, you have a ton of data to work through, and there are many different reports you can compile to identify potential issues. You’ll also be able to report on your successes as you work toward achieving your energy reduction goals.
With so much data at your fingertips, however, it can be difficult to determine what reports will most effectively spot these issues and prime you to make informed decisions.
Here are a few reports with which every facility and energy manager should be familiar:
Download our Energy Management Report Guide to see examples of these and other recommended reports.
The data contained within your now-centralized energy management database is a dream-come-true for those tasked with procuring energy for your organization. Armed with, ideally, a few years of data and a thorough understanding of energy use patterns, your buyers will be able to negotiate with energy suppliers from a position of power.
As you work to uncover savings opportunities in your utility bill and interval data, remember that EnergyCAP’s comprehensive solution—industry-leading software, utility bill processing, and consulting services—can make the process much easier and more efficient:
Take a few minutes to read “How Much Will You Save with an Energy Management Information System?,” actual accounts of how organizations of all types have benefited from their centralized utility bill and energy management process.
Now that you have established your energy database, analyzed the data, and taken action, it’s time to objectively verify your energy savings and communicate your progress.
The energy consumption baseline you’ve now developed is the measuring stick against which progress toward your energy reduction goal or mandate will be evaluated. The challenge is to make sure that you’re evaluating your performance in a fair, apples-to-apples manner.
The purpose of weather normalization is to eliminate weather as a factor in energy consumption to present a fair month-to-month comparison. The process begins with calendarized usage data, wherein energy use is divided into daily “buckets” (i.e., calendarized) and allocated to the appropriate calendar month. When a meter is not weather sensitive, the bill is simply prorated into each month based on the number of billing period days; total usage is divided by the number of days in the month.
When a meter is weather sensitive—determined by statistical analysis—a more sophisticated method is used to prorate the weather-sensitive portion of the energy consumption based on the number of degree days in the appropriate billing period in each month, and to prorate the remaining, not weather-sensitive portion based on the number of days. The images below show examples of weather-sensitive and non-weather-sensitive meters:
The positive line slope in the left-hand image illustrates that more energy is consumed as cooling degree days increase (reflective of increasing daily mean temperature), confirming that consumption measured by that utility meter is impacted by the weather. Therefore, in a year where temperatures are above average, the facility is likely to consume more energy, even though steps may have been taken to increase energy efficiency. Comparing monthly or annual energy use after weather has been removed more accurately reflects the impact of energy conservation efforts…
…but to get an even more accurate evaluation, additional factors should be accounted for, and that’s where the concept of Measurement & Verification comes in.
The measurement and verification (M&V) process compares current energy consumption with consumption in an adjusted baseline year to calculate the amount of energy you avoided using due conservation efforts. Certified M&V processes automatically account for major variables, such as weather (degree days), billing period length, floor area changes, and commodity price, in addition to allowing for special adjustments related to changes in occupancy, schedule, and equipment retrofits.
While comprehensive M&V calculations are relatively detailed and complex, the process can be summarized in three primary steps:
Step #1—Establish a baseline year. Typically, this period is the twelve months immediately prior to the implementation of the energy management initiative. The baseline year is typically announced in energy reduction mandates. For example, the Commonwealth of PA’s mandate established 2017 as the baseline year.
Step #2—Adjust the baseline to today’s conditions. When all known variables—weather, billing period length, square footage changes, etc.—have been accounted for, you will have an energy cost value for the Baseline Year Adjusted To Current Conditions, which is referred to as the BATCC in EnergyCAP.
Step #3—Compare the BATCC to the current utility bills. The BATCC value reflects the amount of energy that would have been consumed without any energy conservation measures. Compare that amount to the actual consumption shown on the current utility bill, and the difference is the amount of energy not consumed due to increased energy efficiency.
Developing an accurate M&V model on your own will be a very time-consuming process and requires a high level of expertise. It’s much more cost effective to license an off-the-shelf application, like EnergyCAP, that provides M&V functionality that meets IPMVP standards.
Laurence J. Peter is credited with the adage, “If you don’t know where you are going, you will probably end up somewhere else.” Your organization’s energy reduction mandate established the goal or destination, and the multi-year effort will require organizational buy-in—from the top-ranking executive to the rank-in-file employee. Getting that commitment and sustaining it to the point that energy and environmental conservation are engrained in your organization’s culture require clear and consistent communication.
Start the communication process by breaking your multi-year goal into more manageable monthly or annual bites; make the long-term destination seem less daunting. The short-term goals should be communicated to your facility managers and building occupants in a format that is visible, easy to understand, and updated consistently, such as this target line PowerView™ from EnergyCAP:
Having access to and sharing data is critical to the success of any energy conservation effort. Earlier, we outlined the types of reports that we feel will provide the actionable data you and your team will need to consult consistently. The one glitch we have found over our 40+ years of experience is that you can’t assume that your team will remember to generate the reports. And if they don’t produce the reports, they will either make uninformed decisions or fail to act at all, and the conservation program is destined to fail.
Ideally, you will overcome the reporting challenge by using an application that enables users to subscribe to reports and have them generated and emailed automatically. In EnergyCAP, for example, reports can be generated on a calendar basis (e.g., daily, weekly, monthly, or quarterly) or only when certain criteria are met. An example of the latter is the Bill Analysis report (right) that employs quadratic regression models for energy use, cost, and demand to highlight utility bills that appear to be abnormal and should be reviewed.
You can learn more about EnergyCAP’s Bill Analysis report here. Constructing a similar type of report in Excel or other business intelligence tool may be doable, but be prepared to invest a substantial amount of effort to create and maintain it.
A decade ago, organizations attempted to encourage energy conservation by setting up energy use displays or kiosks in building lobbies. Some cited benefits, but most confirmed over time that the easy-to-ignore displays did little to encourage energy conservation or change building occupant behavior. Today, the ineffective lobby displays have been replaced with online energy dashboards, and the online displays offer multiple advantages:
When you’re pursuing an energy or emissions reduction mandate, the biggest advantage of online energy dashboards is they will keep you and your organization accountable. A dashboard that displays your objectives to every member of your organization and even, perhaps, to the public is a constant reminder of your mission and how far you have to go to meet complete it.
Select a tool that allows you to display the high-level and detailed data that will motivate your audience—those who work for and with your organization—to help you achieve your conservation mandate.
We developed this resource to serve as a guide to those tasked with meeting an energy or emissions reduction mandate, recognizing that the information provided is relevant to any organization embarking on a mission to conserve energy and lower utilities costs.
As with any major undertaking, multiple paths may lead to the same outcome. However, some paths are much more challenging and require a higher level of effort. We’ve all learned that the shortest distance between two points is a straight line. At EnergyCAP, we’ve spent 40 years developing an award-winning utility bill accounting and energy management solution that is the “straight line” to long-term energy conservation success.
If you’re tasked with meeting an energy or emissions reduction mandate and want to take the path that’s proven to be easier, smarter, and friendlier, contact us to learn more about EnergyCAP. I also encourage you to read our field guide, “How to Spec and Purchase and Energy Management Information System” as you begin your research.