Clue: Clean energy source

Answer: WINDMILL

Length: 8

---

Similar Clues:

• Clean source of energy (SOLARPOWER with 10 letters)
• Important energy sources (TRIGLYCERIDES with 13 letters)
• Energy source that may be 2 trillion times as bright as the sun (QUASAR with 6 letters)
• Energy sources (e.g. ATOMS with 5 letters)
• Energy source (e.g. ATOM with 4 letters)
• One source of energy (e.g. ATOM with 4 letters)
• Energy source in old engines (STEAM with 5 letters)
• Major Chinese energy source (IRANIANOIL with 10 letters)
• Renewable energy source (BIOMASS with 7 letters)
• Body-energy source (PROTEIN with 7 letters)