Energy efficiency is not just low-hanging fruit; it is fruit on the ground. Stephen Chu, US Secretary of Energy
  • Because supplementary lights also produce heat, they can have a sudden impact on the temperature balance of a greenhouse when they are turned on.
  • In our article 'Where should you position your measuring box?', we showed how relying on a measuring box placed in the traditional position at the top of a tomato crop can give non-optimised control of the greenhouse environment and lead to wasted energy.
  • In this factsheet, Farm Energy Centre's Chris Plackett, and Steve Adams and Allen Langton from Warwick Horticultural Research International (HRI) highlight the benefits of good housekeeping — the first essential step in achieving efficient energy management.
  • Controlling humidity can be expensive in energy terms, yet it is essential for the control of fungal disease and to ensure active plant growth. Humidity control also needs to be carefully targeted so as not to negate the energy savings from measures such as temperature integration (TI) and thermal screens.
  • In 2008, the GrowSave team worked with tomato growers R & L Holt to optimise the use of thermal screens at their Hornsfield Nursery. The end result was best practice energy use levels and enhanced crop yield.
  • In our article 'Optimising screen and vent control with lights',  we explained the importance of gapping when