Alice Firman – Washington State DOT

WSDOT's Tom Knowlton installed the first LED lights in Washington state. Just days later, Olympia drivers saw the road in a whole new light. WSDOT expects the 88-light LED system to last 15 years, reduce energy usage by 1.7 million kilowatt hours of electricity and save $75,000.
WSDOT’s Tom Knowlton installed the first LED lights in Washington state. Just days later, Olympia drivers saw the road in a whole new light. WSDOT expects the 88-light LED system to last 15 years, reduce energy usage by 1.7 million kilowatt hours of electricity and save $75,000.
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