TRAFFIC SIGNAL Program
LED (light-emitting diode) traffic signals use 80% to 90% less energy than traditional incandescent traffic signals. Their energy use is 8 - 25 watts, depending on size and color, compared to a range of approximately 67 - 150 watts for incandescent lamps. LED lights also look brighter than incandescent lights. Equally important is how long they last. LED traffic signals can last as long as ten years compared to roughly two years for incandescent lamps. This translates to lower maintenance costs. Avista Utilities offers incentives that will help to reduce the initial purchase price of replacement LED traffic signals.
The table below illustrates estimated energy and cost savings for typical LED traffic signal uses.
|
Signal
Type |
Annual Energy Savings |
Annual Energy Cost Savings* |
Avista Incentive |
|
Small Pedestrian Signals |
498 kWh |
$27 |
$35 |
|
Large Pedestrian Signals |
851 kWh |
$47 |
$45 |
|
8" green signal |
245 kWh |
$13 |
$35 |
|
8" red signal |
289 kWh |
$16 |
$25 |
|
green signal |
494 kWh |
$27 |
$55 |
|
red signal |
548 kWh |
$30 |
$30 |
|
green arrow |
111 kWh |
$6 |
$10 |
|
red arrow |
401 kWh |
$22 |
$25 |
|
green arrow |
224 kWh |
$12 |
$30 |
|
red arrow |
808 kWh |
$45 |
$30 |
*Based on approximately 5.5 cents per kWh
To apply for incentives please complete a LED Traffic Signal Retrofit Incentive Agreement. Incentives are paid upon completion of the project.