IR camera borrowed for classroom, saves energy for university

Western State Colorado University is located in Gunnison, frequently one of the coldest areas in the 48 states.
Western State Colorado University is located in Gunnison, frequently one of the coldest areas in the 48 states. (Photo by Western State Colorado University)

Anyone who picks up an infrared (IR) camera quickly becomes aware of the possibilities of being able to “see” the temperature of objects. Some WAPA customers find that once they borrow a camera from our Equipment Loan Program, coworkers from other departments suddenly appear with ideas for their own projects, as happened at Western State Colorado University You are leaving (WSCU).

John Mason, an associate professor of physics in WSCU’s department of Natural and Environmental Sciences, recently borrowed an IR camera primarily for class demonstrations. He heard about it through a colleague who attended an energy fair in Gunnison, Colorado, where then-Equipment Loan Manager Gary Hoffman had a display table for WAPA.

Showing, not telling
“The camera is great for making abstract concepts concrete to students,” Mason noted. “Take thermally induced electromagnet radiation, for example. Instead of trying to explain it to students, I can focus the camera on a black plastic trash bag, and it shows right through it. Then, I point it at a piece of glass and they can’t see what is on the other side. The students perk right up when I bring out the IR camera,” he added.

Other teachers found uses for the camera, too, but it was in the hands of the WCSU facilities manager that the loan really paid off for the school. “It didn’t take long for word to get to facilities that we had an IR camera, and Bryce [Hanna] showed up asking to borrow it,” Mason recalled.

Gunnison, always one of the coldest spots in the Colorado Rockies, was experiencing a particularly cold winter during the period of the camera loan. Facilities Manager Hanna saw the opportunity to show the administration why Hurst Hall, a building of classrooms, labs and offices, needed a thermal envelope upgrade. The department performed an IR inspection of the building and shared the picture with the insulating contractors to get their input on what measures needed to be taken. “Then we showed the thermal images to the WSCU Sustainable Action Committee to get their approval to fund the project,” he said. “The committee is the ultimate decision maker in terms of how—and whether—sustainability funds get spent.”

Finding, fixing
Hurst Hall’s frigid upper floor and frozen water pipes were plenty of proof that the building had a leaky envelope. But the IR camera helped to pinpoint the areas that needed repairs and make the case for investing in the improvements. “The problems are not always where you expect them to be,” Hanna pointed out.

Hurst Hall; containing offices, classrooms and labs; was very much in need of an envelope upgrade.
Hurst Hall; containing offices, classrooms and labs; was very much in need of an envelope upgrade. (Photo by Western State Colorado University)
The light areas of the thermal image show where Hurst Hall is losing heat to air leaks and inadequate insulation.
The light areas of the thermal image show where Hurst Hall is losing heat to air leaks and inadequate insulation. (Photo by WSCU Facilities Management)

The camera uncovered a bad case of “gaposis” just below the roof where the exterior wall and insulation didn’t quite meet the insulated roof. The opening allowed heat to escape while an uninsulated steel tube vented cold air into the building. Adding spray foam insulation to the gap raised the temperature by almost 40 degrees in some places. “Filling the big holes also helped us to locate the smaller leaks, which are just as important to sealing the building envelope,” noted Hanna.

The results from the project are still coming in, as the heating system controls must be fine-tuned to adjust to the tightened thermal envelope. However, a normalized comparison of 2015 gas bills to 2016 indicated that the building used 20 percent less gas during the coldest month. Hanna explained that because of the low cost of natural gas, the return on investment for the upgrade is practically nonexistent. “We did it because it was the right thing to do,” he said. “Not to mention, the building occupants are a lot more comfortable.”

Which water pump would you rather touch? Thermal image showing pump on right clearly overheating.
Which water pump would you rather touch? This thermal image clearly shows the pump on the right overheating. (Photo by WSCU Facilities Management)
The lighter the window, the greater the heat loss. Windows on the bottom floor are new. The dark mound below the windows is snow.
The lighter the window, the greater the heat loss. Windows on the bottom floor are new. The dark mound below the windows is snow. (Photo by WSCU Facilities Management)

Safe, efficient maintenance
As impressive as big upgrade projects are, keeping equipment and systems in good working order is even more important over the long term. While Hanna had the camera, he used it to detect and correct mechanical and electric issues. “If you are having a problem with a hard-to-reach piece of equipment like an inline water pump, you can see what is happening right away on a thermal imager,” he explained. “If you are dealing with an electrical short, you don’t want to be handling it without knowing if it is live or not.”

Instead of wasting a thousand words on the importance of efficient windows, Hanna simply compared a picture of recently installed windows to old windows. “We could see an immediate difference between the two,” he declared. “The old windows appeared as bright in the picture, indicating high heat loss. The new windows were much darker, showing that less heat was escaping them. In some spots the new windows were even out-performing the stucco wall around them.”

Many lessons to learn
This story offers more than one take-away besides the obvious, “Infrared cameras are awesome!” You might conclude that customer outreach can pay off in unexpected ways, or that facility managers can be a utility’s greatest ally. You may decide that customer service representatives and key account managers need to take an IR camera along when they visit customers.

The Equipment Loan Program can help with that last one. Contact Chris Lyles, 720-962-7249, to reserve a camera for your next customer meeting or public event. And don’t forget to tell us your story afterward.

Lincoln Electric System keeps refining efficiency incentives

Like rose bushes, customer energy-efficiency programs only flourish with careful attention, like Lincoln Electric System You are leaving Western's site. (LES) gives to its Sustainable Energy Program You are leaving Western's site..

The Nebraska municipal utility is funding its incentive program with $3 million this year to help customers make their homes and businesses more energy-efficient. The program is intended to encourage customer-owners to upgrade to equipment and systems that are more efficient than they would have purchased on their own.

Program participants are not the only LES customers who benefit, either. “The Sustainable Energy Program also reduces the need to purchase more expensive power during the summer months and delays the need for new power generation,” said Marc Shkolnick, LES manager of energy services. “This is a good investment for all our customer-owners.”

Broadening program
LES launched the Sustainable Energy Program in 2009 to reduce demand with energy efficiency and renewable energy to offset the utility’s projected five-year growth on a rolling basis. “We retooled a heat pump incentive to go after our summer peak,” explained Shkolnick. “Over time, we added more equipment and systems as we realized that it would take a more aggressive approach to ensure that all our customers were benefitting.”

LES offers funds to help customer-members upgrade insulation and seal their homes and businesses. (Photo by Lincoln Electric System)
LES offers funds to help customer-members upgrade insulation and seal their homes and businesses. (Photo by Lincoln Electric System)

The current version of the Sustainable Energy Program offers incentives for:

  • High-efficiency heat pumps and air conditioners for residential and commercial customers replacing existing cooling systems or installing them in newly built homes and buildings
  • Commercial and industrial energy-efficiency measures that achieve peak demand savings, such as commercial lighting retrofits, air conditioner or heat pump replacements, variable-frequency drive upgrades, compressed air system analysis and upgrade, energy management system installation, optimization or upgrade and system commissioning
  • Whole-house and facility sealing and insulation to seal penetrations and bring insulation levels to current code standards in existing homes and facilities

Air conditioner and heat pump upgrades are the most popular residential measures, and for commercial customers, “It’s lighting, by a slam dunk,” declared Shkolnick. “Over time, between the changes in technology and dropping prices, we’ve seen the most activity in lighting incentives.”

LES commercial customers overwhelmingly choose lighting upgrades to reduce their electricity bills. (Photo by Lincoln Electric System)
LES commercial customers overwhelmingly choose lighting upgrades to reduce their electricity bills. (Photo by Lincoln Electric System)

Spreading savings, awareness
Since 2009, residential customers have implemented 6,000 projects and commercial customers have completed 5,000 upgrades to save a cumulative estimate of 100,000 megawatt-hours. Leveraging $18.3 million in incentives, LES customers invested $87 million in energy-efficiency upgrades for an estimated annual savings of $7 million on electric energy bills, a win for the local economy, too.

In fact, trade allies have been among the program’s biggest promoters, noted Shkolnick. “People don’t think about these kinds of purchases until they need to. Contractors are talking to customers when they are ready to buy new equipment or systems, and they talk about the incentives,” he said. “LES promotes the program through the usual channels—bill stuffers, newsletters, ads—but the vendors are our most effective marketers.”

Getting off on the right foot with the local contractor pool—and staying there—helped. LES brought vendors in during the development of the Sustainable Energy Program to get their input. “We still do an annual orientation to update our trade allies on program changes, terms and conditions,” Shkolnick said. “Also, we moved the reimbursement system online to streamline the process and make it more user-friendly.”

Reaching out to contractors has paid off in more than program participation. A recent survey LES conducted showed not only a growing awareness among customer-owners about the Sustainable Energy Program, but also about energy use and reducing waste in general.

Making good even better
All of which is to say that the Sustainable Energy Program is doing a good job of saving energy and engaging customers. But is it keeping up with the times? Since LES launched the program, lighting technology has made great strides, building energy codes have tightened and federal efficiency standards have toughened.

Far from taking success for granted, LES recently hired a consultant to analyze seven years’ worth of data and experience. The third-party critique will review the program’s cost-effectiveness, and look at assumptions for claiming energy and demand savings and how the savings are modeled in the utility’s load forecast. “We want to make sure the program is following industry best practices,” said Shkolnick.

It takes work to build an effective energy-efficiency program—one that meets the needs of both customers and utility—and Lincoln Electric System is sowing what it wants to reap.

Hidden energy wasters hurt efficiency in commercial buildings

Controlling energy consumption in large commercial buildings can yield big rewards for both the owners and their power providers. Taking the long view, efficient buildings also contribute to the health of the occupants and the economy, too. So why are buildings still wasting as much as 50 percent of the energy that flows into them?

According to the Panoramic Power blog You are leaving, one of the culprits is secret energy wasters—building systems that are not maintained or used properly. The article cites studies that have shown how continuously monitoring and adjusting operations and implementing just a few energy-efficiency strategies can reduce a building’s energy use by as much as 30 percent.

Common—and often undetected—energy wasters include:

1. Lighting rooms where daylighting is sufficient: This can also cause the HVAC system to work harder, wasting more energy.

2. Systems that continue operate after business hours: It’s 7 p.m. Do you know if your lights and HVAC systems are still on?   

3. Performing unnecessary maintenance: Working on a system that doesn’t need maintenance can actually be an energy drain. Build your maintenance schedules around performance data to promote energy efficiency, reduce downtime and improve overall performance.

4. Running equipment that is not in use: If the device has a built-in power management feature that automatically induces sleep cycles when it is not being used, make sure the feature is activated. Check into “smart” monitors and power strips to control older devices that do not have built-in power management.

5. Heating against cooling: An over-cooled office may cause employees to run space heaters under their desks, causing a vicious circle of energy waste.

6. Overlighting: More is not always better when it comes to lighting. Use resources from the Illuminating Engineering Society You are leaving to determine the appropriate lighting levels for your needs.

7. Insulation is not forever: Schedule periodic inspections of all piping, ducting and equipment to look for damaged or degraded insulation and possible energy leaks.

8. Filthy filters: Clean and replace filters on HVAC equipment frequently during high-use periods. Dirty filters are an expensive mistake, and lead to poor indoor air quality, too.

9. Blocked vents: A chair or file cabinet blocking a vent can cause your ventilation system to use as much as 25 percent more energy to distribute air.

10. Overriding Building Management System settings: Everything works better if you use it as intended. When occupants override the building’s automated controls—for a weekend meeting, for example—energy waste is quick to follow.

Some of these energy wasters can be stopped with simple, low-tech solutions like opening blinds during the day and regularly replacing filters. Other systems will require more advanced monitoring, data analysis or even recommissioning to correct. Even if you have a building energy manager, a consultation with a certified technician may be worth the investment.

Key account managers should keep a checklist of best practices for stamping out energy waste close at hand to share with commercial customers. Ultimately, it is crucial to remind building owners that monitoring all the energy-consuming equipment and systems in the building is the best way to catch and stop energy waste before it shows up in a large utility bill.

Source: Panoramic Power blog, 1/17/15