- Use incandescent light bulbs, lower use of fuel used in homes, turn off lights when you leave the room, don’t leave water running, don’t do wash everyday.
- Net energy yield-from energy conservation devices is based on the total useful energy produced during the lifetime of an entire energy system minus the energy.
- Passive has no moving parts, active has a pump with heat absorbing fluid.
- Capture energy and convert it directly into electricity by separating electrons from their parent atoms.
- Devices that use ongoing electrochemical reactions to produce an electric current.
- These can lead to deforestation and air pollution
- Produced by anaerobic decomposition of moist organic material. Example a swap.
- Human displacement, ecosystem destruction, and wild life losses.
- Dung and charcoal.
Heat from the sun warmed upper layer is used to evaporate a working fluid which has a low boiling point , the pressure from the gas produced is high enough to spin turbines to generate electricity.