What about financial payback? Approximately 5 years A typical 200L geyser uses an average of approximately 11-13 kWh per day to maintain the temperature at 60 degrees. At the current 39c/kWh this resolves to R4.29 per day or 1565.85 per annum. With projected Eskom tariff increases of 30% per annum the recovery point for a system delivering 9.23kWh...Read more
Technical Yes, but really quite simple. There are many different types of Solar Water Heater now coming on to the market offering various levels of performance and various configuration possibilities. Pre heat vs. Primary system. A pre heater configuration heats water in a separate secondary tank using solar energy and then feeds this pre-heated water into your normal...Read more
In response to the Star Consumer watch article. Monday 28th June. http://www.iol.co.za/index.php?click_id=3027 One critical point which has been omitted from this article is that the problems that have been encountered are entirely with flat plate systems. There has been no mention of that fact that Evacuated tube systems are more than adequately frost tolerant. We have not...Read more
Because of the fact that "solar insolation" levels, (energy from the sun), across the country are highly variable it requires that products be both correctly sized and oriented for their installed location if they are to be able to provide a useful year round energy source.
To highlight this phenomenon, Sky Power has launched a graphical...Read more