City Of Bettendorf, Iowa

The City of Bettendorf, in collaboration with MidAmerican Energy approached us to prepare the business case for a demonstration of 32 LED street lights installed in front of the Quad Cities Waterfront Convention Center. The project was estimated to deliver a 14,115 kilowatt savings, a $1,200 annual savings and 7-year payback compared to the high pressure sodium lamps they replaced. We produced a SSL training workshop from the demonstration and educated other municipalities and commercial customers about LED standards and how to identify quality.

Bettendorf Research Report


  • - A community-wide, 20% increase in perception of safety by the residents of Bettendorf.


  • - A forecast 49% annual k/Wh savings from the Philips Capella LED fixtures.

  • - Will produce a 7-year payback compared to a new high pressure sodium lighting system they replaced.


  • - Uncertain about LED light distribution meeting RP-8 lighting standards for a collector road.