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Energy efficiency is not just low-hanging fruit; it is fruit on the ground. Stephen Chu, US Secretary of Energy

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  • Here is presentation given by Dutch consultants on the 29th January. Growers who attended this event heard how the drive to save energy, and to grow more sustain-ably, was seeing fundamental changes to glasshouse cropping practices in the Netherlands. Read More...
  • Growers of protected crops who attended this event heard from Dutch consultants how the drive to save energy, and to grow more sustainably, was seeing fundamental changes to glasshouse cropping practices in the Netherlands. For instance, new thinking suggests that absolute humidity gives a better picture of humidity levels in the glasshouse than either relative humidity or vapour pressure deficit, and that means it can be controlled more accurately, said Peter Geelen of Plantmonitoring NL. Read More...
  • In this Technical Update, we take a look at how air movement systems can improve the greenhouse environment and contribute to reduced energy costs, more even crops, and reduced disease risks. The update looks at fan systems and explains how apex screens can reduce unwanted natural air movement above thermal screens. Read More...
  • 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. R & L Holt's final energy use figures for 2008 are shown below, so you can make a direct comparison with how your own nursery performed. Read More...
  • This article explains some set points you can use with your climate control computer to control when your greenhouse screens open and close in relation to time of day and light level..   Starting set points for your climate control computer: (Click on table to see a larger version)           Set point 1: Absolute light limit Definition: If the light level is higher than this, the screen will open regardless of how cold it is outside. Read More...