* 1. What company is the biggest user of solar energy?

* 2. What does PV mean?

* 3. What size is the largest solar power plant?

* 4. At what angle should solar panels be tilted for optimal production (approximately) ?

* 5. What percentage of total US energy is powered by solar?

* 6. When was the first solar power station built?

* 7. How much maintenance is needed for solar panels?

* 8. What affect does cold weather have on solar energy production?