en.Wedoany.com Reported - Western Sydney International Airport's electricity demand will increase from approximately 40 GWh per year to about 120 GWh in the coming years. To achieve fully renewable energy supply, the airport has signed a seven-year power supply agreement with CleanPeak Energy. Under the agreement, CleanPeak will invest over AUD 50 million to build a 9 MWp rooftop solar system and a 30 MW/120 MWh battery energy storage facility on the airport site. Combined with the airport's existing 4.5 MWp rooftop solar installation, on-site renewable electricity generation will exceed 18 GWh annually.
CleanPeak will also operate the airport's embedded electricity network, delivering renewable electricity to the airport, its tenants, and operators. Since May 1, 2026, the company has begun supplying power through on-site photovoltaic generation, energy storage, and its portfolio of solar farms. As the airport expands, CleanPeak plans to build new solar farms in New South Wales and continuously optimize the airport's integrated energy system to meet future demand growth.
The project includes the lease, operation, and maintenance of the existing 4.5 MWp rooftop solar system, the construction of an additional 9 MWp rooftop solar system within the airport, a 30 MW/120 MWh battery energy storage system to be delivered in 2027, and the operation of an embedded network for on-site power distribution. Once fully operational, the airport is expected to consume over 100 GWh of electricity annually, all sourced from on-site generation and renewable energy from CleanPeak's solar farm portfolio, reducing approximately 64,000 tonnes of CO2 equivalent emissions per year.
CleanPeak Energy CEO Philip Graham stated that the project demonstrates a pathway for critical infrastructure to achieve energy transition while maintaining reliability, with the core being the design, financing, and operation of a large-scale energy system as a whole, thereby powering key assets like airports without compromising performance. WSI CEO Simon Hickey noted that this partnership aligns with the airport's sustainability goals, helping to achieve net-zero Scope 1 and Scope 2 emission targets, and that the managed energy system represents a significant commitment by WSI to a low-carbon future.
