Across
- 5. Fuel such as peat, gas, coal and oil
- 7. Turns motion to electricity
- 8. Energy source which works best when not cloudy
- 10. Energy source which will run out
- 12. Energy source which won't run out
- 14. Source of most renewable energy in Ireland
- 15. Fuel in nuclear power stations
- 16. Energy source suitable for an estuary
- 17. The original source of almost all our energy on Earth
Down
- 1. Energy from hot rocks
- 2. Energy source from fast growing plants
- 3. Floating devices generate electricity from this source
- 4. Nuclear reaction in power stations
- 6. Energy source from falling water
- 9. Discovered how to generate electricity
- 11. Run Ireland's electricity network
- 13. Nuclear reaction of future electricity generation hopefully