CEDAR RAPIDS - Alliant Energy has begun to replace the first of about 12, its high-pressure sodium streetlights with LED ones here and in 58 other communities in its Cedar Rapids metro service area.

Households can reduce their energy bills and cut their contribution to greenhouse gas emissions by switching to more efficient lighting, but what’s the best strategy to maximize savings in cost, ...

MidAmerican Energy said it will convert more than 100,000 street lights in Iowa to LED lights.MidAmerican hopes to increase energy efficiency while saving costs.WATCH VIDEO HERE. Crews started ...

Before agreeing to replace Newtown Township’s streetlights with LED fixtures, officials did the math and it added up: spend $720,000, but save $43,679 annually so that in 20 years there will be a ...

Mar. 10—Super bright, energy-efficient LED street lights are beginning to replace Brownsville's old high-pressure sodium-vapor lights, which have been in widespread use for about 50 years. It's easy ...

New Yorkers trying to catch a few winks in the city that never sleeps have persuaded bureaucrats to turn down the lights. The city began installing energy-efficient LEDs in all of its 250,000 street ...

Denver International Airport is retrofitting more than 5,400 lights located in the airport’s east and west parking garages with energy-efficient LED fixtures, resulting in substantial energy and cost ...

SAN DIEGO — The City of San Diego and General Electric announced Tuesday that a program to replace 3,000 street lamps around the downtown area with energy-efficient LED lighting is underway. The new ...

Detroit — The city's Public Lighting Authority has begun efforts to replace nearly one-third of its LED streetlights only a few years after they were installed because of defective equipment that's ...