Let me explain
A 340 MWac solar PV plant works with a 1,227 MWh battery energy storage system, which Acwa describes as the largest off-grid battery facility built anywhere, supplying the destination around the clock with no grid connection. The system delivers up to 760,000 MWh of clean energy a year and avoids about 600,000 tonnes of CO2 a year at full capacity. It serves all of Red Sea Global's operational hotels, Red Sea International Airport, the logistics hub, the electric fleet and the staff village. The scope also includes three seawater reverse osmosis desalination plants, a waste management centre, a 16,000 m3/day sewage treatment plant that creates new wetlands and supplies irrigation water for the landscape nursery and the Shura Links golf course, and 32,500 refrigeration tons of district cooling serving the hotels and the airport. SEPCO III was the EPC contractor and Acwa Operations runs operation and maintenance for the full concession. Total investment is about USD 1.84 billion, and construction reached 30 million safe working hours without a lost-time injury. It is the first giga-project in the Kingdom to bring its entire utility systems into commercial operation on renewable energy alone, with no reliance on the national grid (Acwa, 6 September 2026).