SACRAMENTO, Calif. (AP) -- Sacramento officials are scaling back plans to generate solar energy on an old city landfill.

Two years ago officials proposed installing enough solar panels in Sutter's Landing Park to produce 20 megawatts of electricity -- enough to power several thousand homes.

The Sacramento Bee reports the city is now working on a smaller operation that would generate 1.5 megawatts to power about 400 homes.

The clean-energy project has run into opposition from environmentalists and wildlife advocates who say a massive solar farm would disrupt a key feeding ground for the threatened Swainson's hawk.

Debates over the environmental impacts of solar-power projects are taking place across California. Last year, Gov. Brown signed legislation that requires utilities to generate one-third of their electricity from renewable sources by 2020.