Across
- 2. same as release or discharge
- 4. same as demands
- 6. You can find something round from this word. It is used to storage energy.
- 7. In the future it might be possible that roads are covered with these or windows are made of these
- 8. synonym=usefulness
- 9. _______ converts solar energy into electrical energy
- 10. opposite of supply. Electricity _______ is subject to substantial hourly, daily and seasonal variation
- 11. the act of entering into or through something
Down
- 1. synonym=trade, means also social exchange
- 3. what is for example pumped hydro? Or batteries?
- 5. When something is stopping and starting irregularly it is______.
- 12. black coal is not this kind of energy source