Solar 1 or Solar One is the name of several solar projects including:

Power plants[edit]

• Nevada Solar One, third largest concentrated solar power plant in the world
• Solar One, part of The Solar Project, a pilot solar-thermal project built in the Mojave Desert

Buildings[edit]

• Solar 1, self-sustaining solar powered building in New York City

Vehicles[edit]

• Solar-Powered Aircraft Developments Solar One British solar-powered aircraft