Costco deals on solar kits, smart thermostats, LED bulbs and more help cut energy bills, boost efficiency and can save you ...

Costco's 18-pack Feit Electric LEDs for $36.99 can cut your electric bill by $269 annually. Here's the math on how these ...

According to the US Department of Energy, LED light bulbs (incorporating light emitting diodes) use at least 75% less energy than the traditional incandescent type and last up to 25 times as long. If ...