California-based SolarReserve has signed a PPA with Saudi Arabia’s ACWA Power to develop the 100 MW Redstone CSP plant in South Africa. The project was won under South Africa’s Renewable Energy Independent Power Producer Procurement Programme. The project will include 12 hours of full-load energy storage based on SolarReserve’s molten salt energy storage technology and is expected to generate electricity equivalent to the consumption of 200,000 households on an annual basis.