The first Tesla Powerwall in South Africa has been installed in Johannesburg, says authorised reseller Dako Power, who plans to gather and use data based on the performance of the initial unit.
The 7 kilowatt hour (kWh) daily cycle Powerwall system which is available in South Africa, harnesses and stores energy generated from solar panels during the day for use at night and during power outages. According to Tesla, the lithium ion Powerwall, which operates at a 92% efficiency rate, can provide 3,3kW of continuous power, the same as its peak output. It said lights per room in a typical house consume 0,1kWh of energy per hour, while a refrigerator consumes 1,6kWh per day.
Peter Dalglish, managing director of Dako Power, says a fully operational system, including 12 solar panels and a 5kwh inverter, which converts direct current from solar panels into alternating current for residential use, taxes and installation, costs in the region of R200 000 depending on the ZAR/USD exchange rate. Rubicon, another local reseller, has priced different Powerwall packages from R116 000 to R272 000, excluding VAT and installation, businesstech reports.