Across
- 2. the house has a wood stove to provide backup heat on cloudy days
- 4. used to convert solar energy into electricity
- 5. mirror that collects energy from the sun and powers electric plants
- 6. sunlight that passes through the windows is absorbed by the walls and floors and is converted to heat
- 8. energy from the sun
- 9. large windows on the south and west sides act as passive solar collectors
Down
- 1. rows of mirrors focused on the sun's rays to heat a tank of water
- 3. captures sun's energy then uses pumps and fans to distribute heat
- 6. solar energy that can be used to heat buildings
- 7. water heater run on solar power