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 ...

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.

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 ...