University of Wisconsin
The Why Files: Super Solar Cells
An understandable description of modern research that is currently being conducted to develop a more efficient photovoltaic (solar energy) cell. It also contains links to other pages on renewable energy sources.
US Energy Information Administration
U.s. Eia: Energy Kids: Renewable Energy: Solar
This is a resource on solar energy, photovoltaic energy, solar thermal heat, solar thermal power plants and other forms of energy.
Michigan Reach Out
Solar S'mores
Students can make s'mores without using a bonfire. This experiment is great to use with the links "Materials that Absorb Solar Energy" and "A Solar Heat Experiment."
NASA
Nasa: Helios, the Solar Powered High Flyer
This site is an article on, "Helios can fly higher than any other airplane! And it uses only the Sun's energy for fuel!"