Across
- 4. organic matter used as a fuel
- 5. cars that use gas and electricity
- 8. a dynamo or similar machine for converting mechanical energy into electricity.
- 9. a sluice or floodgate for regulating the flow of a body of water.
- 11. relating to or denoting the generation of electricity using flowing water
- 15. relating to the production of electric current at the junction of two substances exposed to light.
- 17. a large natural or artificial lake used as a source of water supply.
- 18. a gas that’s naturally released
- 19. an installation where electrical power is generated for distribution.
Down
- 1. a machine for producing continuous power
- 2. a type of biomass
- 3. the use of the sun's energy directly for either heating or cooling purposes.
- 5. hydroelectric power plant
- 6. relating to or determined by the sun.
- 7. biodegradable
- 10. a colourless, odourless, tasteless, flammable gaseous substance
- 12. a barrier constructed to hold back water and raise its level
- 13. relating to or produced by the internal heat of the earth.
- 14. Ocean thermal energy conversion
- 16. Horizontal axis wind turbine