Solar thermal and photovoltaics (PV)

Solar thermal and photovoltatics

In the past photovoltaic generation was very expensive thanks to the cost of the high tech semiconductor factories needed to make the collectors. Now mass production has brought costs down to a level where PV makes economic sense.

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Solar thermal has traditionally been the cheaper and lower technology way to harvest solar energy. The heat can only be used in the house where it is installed and PHPP recognises this as contributing to reduced primary energy consumption because...

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