[Micele]

Oorspronkelijk geplaatst door gertc

En dan zijn er mensen die denken dat we dergelijke batterijen kunnen gebruiken als backup in plaats van gascentrales.

Idd, mensen in Californië waar zo een batterijpark op termijn de oude gasbackupcentrales gaat vervangen of tenminste de afhankelijkheid van die gaspeakerplants gaat verminderen:

https://electrek.co/2017/01/23/tesla...fornia-edison/

Instead, the system will charge using electricity from the grid during off-peak hours, when demand is low, and then deliver electricity during peak hours to help maintain the reliability and lower SCE’s dependence on natural gas peaker plants.

The project was actually launched after SCE started looking into storage solutions following the shutting down of the Aliso Canyon natural gas reservoir, which was the source for the power plants in the region, after the catastrophic rupture in 2015 that led California Governor Jerry Brown to issue a state of emergency.

If it proves successful, the project could serve as an example to decommission more peaker plants and replace them with battery-powered energy storage installations.

https://www.theguardian.com/sustaina...energy-storage
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Traditional grid solutions didn’t make sense. Gas peaker plants – which can be turned on quickly to meet demand – can take years to gain permission and be built, and they burn fossil fuels. You can’t drop a hydroelectric dam in the middle of a city. Solar power doesn’t help much in the evening, when summer demand is highest.

Instead, utilities Southern California Edison and SDG&E chose something relatively new: grid-scale batteries. What followed was the Escondido battery plus several others totalling about 100MW. The project became a major test case for the grid storage industry’s ability to make the grid more efficient and clean.

“To go from something that we thought of as kind of the future technology to, all of a sudden, it coming to the rescue so quickly – yeah, I think that’s a huge success story,” said John Zahurancik, president of AES Energy Storage.

Cleaner energy

A battery can absorb whatever power is available, whether it’s from coal, solar or nuclear. The ability to store and discharge power, though, has particular value for regions pursuing high levels of renewable energy.

“As more of our electricity starts to come from wind and solar, grid storage can collect extra electricity when the sun is shining and the wind is blowing, and then give it back during still nights when we need it to power homes and businesses,” says Sonia Aggarwal, vice president of San Francisco-based consultancy Energy Innovation.

Owners of old power plants should be shaking in their boots

California already gets about 8% of its power from solar and 9% from wind. This month, the legislature is voting on a 100% renewable target; if passed, the opportunity for storage to move that power around will grow.

Grid batteries offer a tantalising longer term application, displacing the gas plants needed to quickly meet peak electricity demand.

Batteries like those in Escondido deliver power instantaneously, but unlike a gas plant they emit no greenhouse gases or air pollution on-site. That makes them easy to slip into populated urban areas, where electricity users are clustered.

That ease of gaining permission and of construction made it possible for California to deal with the Aliso Canyon shortfall in months rather than the years needed for traditional gas plant construction.

“This is unprecedented speed for power infrastructure – it’s unheard of,” Aggarwal said. “If future projects can match this timeline – or even beat it – as grid storage prices continue to plummet, owners of old power plants should be shaking in their boots.”