Renewable energy

1. a system where mirrors are used to concentrate light for conversion into electricity
4. a system that actively uses and stores energy from the sun
6. electricity generated by flowing water
7. Energy found in living matter
12. power generated from combustion of biomass
13. a process where water is split into oxygen and hydrogen
14. liquid fuels made from biomass
15. energy found in heat underground
16. a device that collects solar heat
17. a device that converts wind energy into electricity

2. energy made using the warmth of the ocean
3. groups of wind turbines
5. a cell that converts light from the sun directly into electricity
8. cells that use electrolysis to store energy
9. a system where a building is heated or cooled using the temperature of the soil below it
10. designing a building to be naturally heated by the sun
11. energy generated using the movement of water with the tides