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  • +27 (0)12 653 1494
  • +27 (0)76 5733 785
  • Physical Address: 137 Edison Cres, Unit 11, Edison Square Office Park, Hennopspark, Centurion

Solar Geyser

Solar water heaters use the radiation from the sun to generate heat. The size of the solar panel will determine how much energy can be collected from the sun. For example if you have a 4sqm or bigger flat plat solar panel connected to a 300L geyser, this should give you 300L of 60°C water at the end of a warm sunny day. The same applies with an evacuated tube system, whereby the bigger your geyser, the greater the number of tubes you need to heart your water.

During cooler days with less sunshine you may still need a geyser element to supplement your hot water heating usage. Today, solar systems are installed with very smart timing systems which allow you to specify time zones for when you want to have hot water, for example at night between 6pm and 9pm when you take your bath, and again in the morning between 5am and 8am. Your system will work to ensure that you always have hot water during these times to the specific temperature. If the temp drops to below your specified requirement and there’s no sunshine at that time to reheat it, your system will kick back to the geyser element to supplement your hot water. It will only do this if necessary, so the savings are significant. In fact, a properly-sized solar geyser can cut your monthly electricity bill by anywhere between 30-40% of your total cost.

When going solar, as a rule of thumb, each person in the household uses around 70 litres of hot water a day. Check with your supplier about the size and the power output of the system. An under-sized or low efficiency system will result in insufficient hot water and a poor realisation on electricity savings, defeating the whole purpose of why you bought the system.










Hy-Energy is the exciting new renewable energy division of Hybrid Electrical and Plumbing. Hybrid Electrical and Plumbing was established in 1992 and is operating as electrical and plumbing contractors from their offices in Centurion. The company has grown over the past 25 years with 80 permanent employees ranging from semi-skilled to qualified Electricians and plumbers. Due to high demand in alternative electricity generation and ongoing grid failures in South Africa, Hy-Energy was established.

Tel: 012 653 1494
Cell: 076 5733 785
137 Edison Cres,
Unit 11, Edison Square Office Park,
Hennopspark, Centurion