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.

Wickliffe is embarking on an ambitious city-wide project which will see all of the city’s streetlights replaced with more energy-efficient LED lighting. The nearly 1,600 streetlights within the city’s ...

The yellow light of sodium vapour lamps in street lights will soon be a thing of the past in the city. The project to replace all energy-guzzling sodium vapour lamps with LED lights has finally taken ...