Coal and natural gas, both carbon intensive energy sources, produce over 60% of the electricity available worldwide. Nuclear, hydro, wind and solar provide cleaner power, but implementing them into the home is too costly for the average American. Instead, Western Rim CEO Marcus Hiles suggests monitoring use of lights, refrigeration, entertainment and cleaning appliances to ensure maximum efficiency. Simply switching from incandescent light bulbs to compact fluorescent lights will reduce up to 80% of the energy needed to operate them, and new light emitting diodes (LED) are even more efficient. Fridges and freezers can be increasingly efficient by not setting them too cold, making sure they are properly sealed and well defrosted, and located in the coolest area possible. Televisions, computers, phones and other electronics should be turned off and unplugged when not being used, as even their standby consumption can be significant. Laundry machines and dishwashers often have very high wattage, and because they are so necessary, it can difficult to limit their use. However, reductions can be made by selecting colder temperatures, and only washing full loads.