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  • Scanning for Ideas: A Motor Pump Built for Solar Power
    Edited by Stephen J. Mraz , Chula Vista, Calif. ( ), anticipating a sharp spike in interest in solar-powered systems, have designed the Ecocirc DC pump, a circulation pump that can be connected directly to photovoltaic cells. The design is based on a spherical motor, a concept invented by Laing
  • Power Grid Collaboratives Enable New Levels of Power Utilization
    change is that the large fossil-fuel generating stations that public utilities use to pump out energy to the grid will be challenged by smaller power-generation networks - mostly solar initially - that leverage collaborative energy exchange.
  • A chicken in every pot, a generator in every backyard
    , as utilities start charging more for power used during periods of peak demand. Backup generators will not only handle outages but also will be able to pump any excess generated power back into the grid. Even homeowners will be able to get into the act selling power back to the utility from sources
  • Electricity from light gets hot
    of light through to the photodiodes, reflecting less useful frequencies back to the heating element. The reflected energy helps pump up the temperature. In theory, the conversion efficiencies could reach 50%. TPV technology isn't new. Back in the late 1960s and early 70s, TPV and light-harvesting

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