pumped hydro

The combination of pumped hydro with other storage technologies can increase renewables penetration, improve operational safety and reduce maintenance costs at large-scale hydropower plants, according to new research. The study also focuses on techniques to determine the optimal size of renewables-based pumped hydro storage systems. Costs for hybrid solar-pumped hydro projects currently range from $0.098/kWh to $1.36/kWh.

AC Renewables, the energy arm of Philippines’ Ayala Corp, and Australia’s UPC Renewables have agreed to buy 51% in a 250 MW pumped hydro project and a neighboring 300 MW solar project, both located in South Australia.

Increased storage and strategic transmission development will be needed to ensure the most economic and lowest risk transition of Australia’s energy system, the Australian Energy Market Operator said in its latest study. In 20 years’ time, the need for storage will be at a scale not seen before in the national electricity market, and pumped hydro and distributed storage are set to play major roles in lowering electricity prices and building a reliable and resilient power system.

Pumped hydro storage is highly cost competitive for large-scale energy storage, according to a report published by the San Diego County Water Authority. The report models a pumped hydro project as securing better financing terms than battery storage.

A new study from the Australian National University shows that a series of pumped storage projects currently in the pipeline across five states could triple Australia’s storage capacity and pave the way for more solar and wind.

Australia’s New South Wales Government has launched its ambitious pumped hydro roadmap designed to back the rising level of wind and solar in the energy mix. Meanwhile, the board of government-owned energy provider Snowy Hydro has given the green light to its landmark $4 billion pumped hydro expansion project, Snowy 2.0.

The Sydney-based developer has obtained A$100 million ($76.8 million) in funding from Clean Energy Finance Corp. (CEFC) and Societe Generale.