PG&E plans to use mostly cheap off-peak night-time wind energy to pump compressed air into an underground reservoir. The pressurised air will be released during hours of peak demand to augment natural gas power plants operated by PG&E. The company says the output capacity could provide the equivalent of 300 MW for a ten-hour duration. Energy storage remains a disputed topic in the wind industry, with many experts arguing that enough flexibility and control already exists in most power grids to easily cope with the variable nature of wind energy production. "There are a lot of really strong opinions on that," says Ryan Wiser, a staff scientist at the Lawrence Berkeley National Laboratory. "To the extent that California has very aggressive renewable energy targets that involve a lot of renewables generation, certainly storage of that nature begins to have a greater value. The real question is whether the system value of storage is sufficient to absorb the added cost."
United StatesUnited States
Leading business intelligence for the wind community.
- In-depth news, analysis, market insight and trends.
- Join today and get your first 30 days free
Tech that has more commonly been used to monitor damage to structures such as bridges is now coming to the fore in the wind industry as a more efficient way to detect blades that have been compromised
No wind farm or operator is the same. That’s why Winergy offers turbine-ready service solutions
Keynote speaker at Blades USA 2022 – David Kaskie, vice president of Products & Systemsdivision, MISTRAS Group – on the importance of getting creative.
How a continuous monitoring solution from Ping is helping turbine owners and providers of predictive analytics minimise blade O&M costs