The U.S. Office of Energy Efficiency and Renewable Energy (EERE) provides education resources and supports research and development of energy efficiency and renewable energy technologies to strengthen economic growth, energy security, and environmental quality.
EERE offers lesson plans such as:
There are also online resources for solar energy:
EERE has also partnered with the National Energy Education Development Project (NEED) to create free energy education resources for classroom and educational use. NEED has many resources available covering a wide range energy-related lesson plans.