HOW ENERGY SMART ARE YOU?

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Across
  1. 5. Energy from sources like the sun or wind that never runs out. (9 letters)
  2. 6. Devices still consume electricity in standby mode. This hidden usage is called ______ load (7 letters)
  3. 7. A warning message sent when your electricity balance is low (5 letters)
  4. 8. A system where you pay before using electricity (7 letters)
Down
  1. 1. Using less electricity to avoid waste is called energy ______ (12 letters)
  2. 2. Energy from the sun used to generate electricity (5 letters)
  3. 3. The pressure that pushes electricity through wires is called ______ (7 letters)
  4. 4. Electricity measured in kWh (4 letters)