Common low-cost/no cost energy conservation measures

Common low-cost/no cost energy conservation measures

 

Participants of Delta Institute's Cook County Energy Efficiency Program receive a full audit report analyzing their facilities specific energy uses identifying low-cost/no-cost and when needed capital investment energy conservation measures along with return on investment analysis and incentive opportunities.  Below is a list of common low-cost/no-cost energy conservation measures we find in our reports for commercial and industrial facilities. 

 

Replace incandescent light bulbs with compact fluorescent lights (CFL)

Cost Comparisons between CFLs and Incandescents

 25-Watt Compact Fluorescent100-Watt Incandescent
Cost of Lamps$3.40   $0.60
Lamp Life1,667 days (4.5 years)167 days
Annual Energy Cost$6   $25
Lamps Replaced in 4.5 years0 bulbs   10 bulbs
Total Cost$29   $134
Savings Over Lamp Life$105   $0

Source: US Department of Energy, Life Cycle Cost Estimate for ENERGY STAR Qualified Compact Fluorescent Lamp

 

Use natural lighting or daylighting
Automatic daylight dimming, or "daylighting," uses a light sensor to measure the amount of illumination in a space. Then, light output from a dimming ballast is adjusted to maintain the desired level of illumination. The combination of daylight dimming with appropriate task lighting is often very effective.
Corridors and open cubicles near windows, particularly those with task lighting, are good candidates for daylighting controls. Private offices with windows can also be equipped with individual daylight sensors. Initial commissioning and calibration of light sensors and controls is critical for effective daylighting, however; poorly calibrated daylight sensors can result in little or no savings, and may annoy occupants.


Install occupancy sensors
Occupancy sensors are the most common lighting control used in buildings today. Two technologies dominate: infrared and ultrasonic. Infrared sensors detect temperature changes in a room, and work well where the entire room is within the sensor's field of view. Ultrasonic sensors use high frequency sound, much like bats do, to detect motion (even around corners). Dual-technology sensors use both methods, increasing accuracy and flexibility, but at a higher price. Even though lamp running life may be somewhat shortened by increased switching due to occupancy sensors, the overall chronological life of lamps is usually extended by the reduced daily burn hours.

For additional information visit:
http://www1.eere.energy.gov/femp/technologies/eep_light_controls.html
 

Insulate hot water heater and pipes
Unless your water heater's storage tank already has a high R-value of insulation (at least R-24), adding insulation to it can reduce standby heat losses by 25%–45%. This will save you around 4%–9% in water heating costs. If you don't know your water heater tank's R-value, touch it. A tank that's warm to the touch needs additional insulation. Insulating your storage water heater tank is fairly simple and inexpensive, and it will pay for itself in about a year. You can find pre-cut jackets or blankets available from around $10–$20. Choose one with an insulating value of at least R-8. Some utilities sell them at low prices, offer rebates, and even install them at a low or no cost.


For additional information visit:
http://www.energysavers.gov/your_home/water_heating/index.cfm/mytopic=13070
 

Install an automatic setback or programmable thermostat
You can save around 10% a year on your heating and cooling bills by simply turning your thermostat back 10°–15° for eight hours. You can do this automatically without sacrificing comfort by installing an automatic setback or programmable thermostat. Using a programmable thermostat, you can adjust the times you turn on the heating or air-conditioning according to a pre-set schedule. As a result, you don't operate the equipment as much when you are asleep or when the house is not occupied. Programmable thermostats can store and repeat multiple daily settings (six or more temperature settings a day) that you can manually override without affecting the rest of the daily or weekly program.


For more information visit:
http://www.energysavers.gov/your_home/space_heating_cooling/index.cfm/mytopic=12720
 

Repair compressed air leaks
Leaks in an industrial compressed air system can waste as much as 20 to 30 percent of compressor output. Optimization of compressed air systems can provide energy efficiency improvements of 20 to 50 percent.

For more information visit:
https://www.comed.com/sites/businesssavings/Pages/bscompressed.aspx

 

Upgrade to LED signs and bulbs

  • •    Reduce energy costs — uses at least 75% less energy than incandescent lighting, saving on operating expenses.
  • •    Reduce maintenance costs — lasts 35 to 50 times longer than incandescent lighting and about 2 to 5 times longer than fluorescent lighting. No bulb-replacements, no ladders, no ongoing disposal program.
  • •    Reduce cooling costs — LEDs produce very little heat.
  • •    Guaranteed — comes with a minimum three-year warranty — far beyond the industry standard.
  • •    Convenient features — available with dimming on some indoor models and automatic daylight shut-off and motion sensors on some outdoor models.
  • •    Durability — won’t break like a bulb.

You can find discounted LED EXIT signs through our green purchasing program at Buyingbetter.org.

For more information visit:
http://www.energystar.gov/index.cfm?c=lighting.pr_what_are