American-Made Challenges

Solar Prize Round 4

The American-Made Solar Prize is a $3 million prize competition designed to energize U.S. solar manufacturing through a series of contests and the development of a diverse and powerful support network that leverages national laboratories, energy incubators, and other resources across the country.

The Solar Prize Contests


The Solar Prize encourages the rapid development of innovative solar energy solutions capable of addressing the tough challenges facing the solar industry. Solar Prize competitors participate in three contests—the Ready! Set! and Go! Contests to transform their ideas into concepts and then early-stage prototypes ready for industry testing. Competitors have the chance to win $3 million in cash prizes and other resources to help them advance in the competition and accelerate the development of their solution.


Anyone with a big idea for solar can participate.


Important dates for Round 4


  • Submission opens: July 10, 2020
  • Ready! Contest submission deadline: October 8, 2020 2:00 PM ET
  • Ready! winners announced and Set! Contest begins: anticipated December 3, 2020
  • Set! Contest winners announced and Go! Contest begins: anticipated March 2021
  • Go! Contest winners announced: anticipated September 2021

All dates are subject to change including contest openings, deadlines, and announcements.

Sign up for updates on our HeroX challenge page

Solutions that help shape the future of solar

Are you a thinker, entrepreneur, facility or potential partner? Anyone with an innovative idea can help transform the solar industry through the American-Made Solar Prize.


Ready for the Challenge?