Amp Energy’s Australian operating company, Amp Power Australia, is set to establish a portfolio of integrated solar photovoltaic (PV), wind and battery energy storage (BESS) assets. Amp Energy’s Australian operating company, Amp Power Australia, is set to establish a portfolio of integrated solar photovoltaic (PV), wind and battery energy storage (BESS) assets. The Renewable Energy Hub of South Australia (REHSA) will involve a total investment of more than A$2bn ($1.54bn).