LAS VEGAS (AP) -- Officials in Las Vegas say a new solar power plant on a 25-acre plot of city-owned land will help power a nearby wastewater treatment plant for perhaps another 40 years.
The 3 megawatt solar generation station began operation Thursday near Vegas Valley Drive and Nellis Boulevard.
It's small compared with big commercial and military base solar energy projects around Las Vegas.
But city officials say it'll be a money-saver.
The Las Vegas Sun reports the nearly $20 million project is expected to generate 6 million kilowatt hours of electricity a year.
That's about 20 percent of the power the treatment plant needs.
The city's chief sustainability officer says wastewater treatment accounts for about one-third of the city's annual energy bill, so the project can provide big savings.