Worlds of David Darling
Encyclopedia of Science
Home > Encyclopedia of Alternative Energy


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  • occupancy sensor ighting control
  • ocean thermal energy conversion (OTEC)
  • off-grid system operation
  • ohm
  • Ohm's law
  • oil
  • oil-fired furnaces and boilers
  • open-circuit voltage
  • open-loop geothermal heat pump system
  • outdoor lighting design
  • outdoor solar lighting
  • overload
  • overshadowing
  • oxygen
  • ozone