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Energy efficiency is a measure of energy used for delivering a given service. Improving energy efficiency means getting more from the energy that we use. DECC - Energy Efficiency Strategy: 'The Energy Efficiency Opportunity in the UK'

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  • Avoiding condensation on plants is a key part of any disease control strategy. Poinsettia growers have to pay particular attention to this problem as they use a technique to control plant height called ‘Drop’. ‘Drop’ involves reducing the greenhouse temperature to as low as 12 degrees C before sunrise and is followed by an increase in the greenhouse temperature to the daytime set point within one hour after sunrise. Read More...
  • Common sense tells us that eliminating unnecessary venting will save energy. However, putting this theory into practice is not as simple as it sounds, especially when humidity control is a key requirement. Heating and ventilation set-points Well-developed plants and milder spring weather conditions mean that like most tomato growers, our Focus Nurseries now have an almost constant demand for humidity control. Read More...
  • In this factsheet, Farm Energy Centre's Chris Plackett, and Steve Adams and Allen Langton from Warwick Horticultural Research International (HRI) highlight the energy savings that can be made through effective glasshouse temperature.   Summary points:   Reducing the heating set-point by 1°C can typically save around 10–13% energy. Read More...
  • The use of thermal screens has become common place on many edible crop nurseries. They've been shown to save large amount of energy, paying back their cost quickly. In 2005, HDC project PC 198 showed that a thermal screen could save 100 kWh/m2 p. Read More...
  • Click to see a larger version                   The greenhouse temperature dropped pretty quickly and the screen closed. The end result was a lower pipe temperature than before the screen closed and a warmer greenhouse. Read More...