An Introduction to Vapor Pressure Deficit

By Haley Bridgnell

How well do you understand temperature and relative humidity? By Harry Connor Vapor Pressure Deficit (VPD) is used by growers to assess how dry the air is at a given moment. If the air is too dry, photosynthesis will stop in order to protect the plant from exhaustion. Photosynthesis is the process of converting sunlight,…

Water Barrels vs. Phase Change Material

By Haley Bridgnell

  Innovation plays an important role in every industry. Bulky, inefficient methods are catalysts for new-age technology. Since traditional greenhouses lack insulation, thermal masses can provide extra heat. Thermal mass materials absorb heat during the day and release the heat back into the greenhouse at night. Water barrels are widely used to maintain temperatures in…

Setting Controls in a GAHT System or Climate Battery

By Haley Bridgnell

  A climate battery is a ground to air heat exchanger, which provides year-round heating and cooling of solar greenhouses and other structures using the thermal mass of the soil underground. Ceres’ patent-pending Ground to Air Heat Transfer (GAHT™) is a high-performance climate battery specialized for year-round greenhouse growers. For more on how a GAHT™…