Across
- 3. – Individual units in panels
- 6. – Long-lasting and eco-friendly
- 8. – Powers devices using solar
- 9. – Often a byproduct of light
Down
- 1. – Environmentally friendly
- 2. – Stores electrical energy
- 4. – Common solar cell material
- 5. – Source of solar energy
- 7. - our app idea name