Selected Energy solar thermal solution - coal mine, Mpumalanga
Selected Energy t/a Solahart
Renewable Energy, Reduce Energy, Water Heating Solutions
Selected Energy installed a hybrid solar water heating solution at a leading mining company’s colliery in Mpumalanga during January 2010. The solar solution was based on a number of calculations, including projected electricity consumption patterns at the mine’s five change houses.
"We noticed that, generally speaking the peak demand for hot water is at the 2 p.m. shift change. Based on the determination of the consumption patterns, we could identify the best possible solution. However, we had to integrate our solar thermal solution with an existing water heating infrastructure, which influenced the solution we offered.
Large amounts of hot water are needed throughout the day, and a purely solar solution is often used with a number of other electricity saving methods to ensure minimum electricity usage. Combining various solutions guarantees hot water, even during periods of low radiation or at night,” said Chris Elliott, renewable energy technical consultant at Selected Energy.
The installation was a greenfield installation (the water heating solution was installed on a new building). Using a combination of 200 flat plate collectors, heat pumps and a heat store energy storage system, the Selected Energy team devised a solution that provided 5 800 litres of hot water per shift, servicing 90 individuals at five change houses. The solution also provided 1000litres of hot water for the mine’s laundry requirements.
Current energy savings: 94%
Energy mix: 73% solar, 21% heat pump and 6% electrical contribution
Alternative Energy Usage
, Reduce Energy
, Renewable Energy
, Solar Water Heating Solutions
, Water Heating Solutions