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A nation that can't control its energy sources can't control its future. Barack Obama
  • Heating is the biggest component of energy use in a greenhouse, so it's essential to take steps to minimise heat leaking from the structure.

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  • Heating is by far the most intensive use on a greenhouse.

    The boilers, pumps and controls all play a major part in efficient operation. They represent the primary inputs so, no matter how efficiently the heat is used afterwards, losses at the production and distribution stage can never be recovered.

    This section covers issues associated with the hardware in these areas.

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  • The need for high light levels in horticulture can easily lead to high energy costs ... but choice of light source & luminaries, and system maintenance can all help to reduce energy use, and expense.

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  • The pumping of irrigation water and the circulation of heating water are major costs in running a greenhouse.

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  • Recent years have seen significant energy improvements in refrigeration, lighting and mechanical handling — important areas for the storage and cooling of crops.

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