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ElizabeVentenot a écrit : ↑

Aujourd’hui, 04:03

Lauren a écrit : ↑

31 janv. 2007, 15:08

En même temps, les ecolos n'aiment rien qui touchent à l'énergie, sauf si cela relève de l'impossible.

Interesting overview of energy storage methods! It's crucial to consider the lifespan and environmental impact of each technology, especially with the rise of renewable energy sources. Speaking of challenges, has anyone tried tackling the daily brain-teaser of Wordle Unlimited while pondering these energy solutions? It's a fun way to keep the mind sharp!

Lauren a écrit : ↑

31 janv. 2007, 15:08

En même temps, les ecolos n'aiment rien qui touchent à l'énergie, sauf si cela relève de l'impossible.

China powers up world’s largest liquid air storage project
The 60 MW/600 MWh storage project is co-located with a 250 MW photovoltaic plant allowing for a high level of green energy self sufficiency.

December 30, 2025 Marija Maisch

In a major milestone for long-duration energy storage, China has activated the world’s largest liquid-air energy storage facility, known as the Super Air Power Bank. Built by China Green Development Investment Group (CGDI) in collaboration with the Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences (TIPC-CAS), the facility is located in the Gobi Desert near Golmud city, in Qinghai Province.

The plant works by compressing and cooling air to –194°C, liquefying it, and storing it in specialized tanks. When electricity is needed, the liquid air expands over 750 times its original volume, driving turbines to generate power. Essentially, the project transforms air into an energy storage carrier under extreme cold.

Hydrostor secures $1.76bn DOE loan commitment for Willow Rock Energy Storage Center
To be built in California, the advanced compressed air energy storage project aims to provide more than eight hours of backup power to California’s grid

Refna Tharayil 9th Jan 2025

ong-duration energy storage developer Hydrostor has received a conditional commitment for up to $1.76bn loan guarantee from the US Department of Energy (DOE) to support its 500MW Willow Rock Energy Storage Center in the US.

To be built in Rosamond, California, the advanced compressed air energy storage (A-CAES) project aims to provide more than eight hours of backup power to California’s grid.

Developed by Hydrostor’s subsidiary GEM A-CAES, the facility is expected to deliver 4GWh of energy storage. The project is expected to commence construction in 2025, with commissioning anticipated by 2030.

Currently under review by the California Energy Commission for permitting, the Willow Rock Energy Storage Center is expected to enhance reliability and bolster renewable energy integration.

Issued through the DOE’s clean energy financing programme, the loan guarantee comprises approximately $1.5bn in principal and $280m in capitalised interest.

If finalised, the funding is set to help establish the US as a leader in long-duration energy storage technology. The project will create 700 peak construction jobs and 40 full-time operational roles.

The A-CAES technology works by storing energy by compressing air and releasing it through a turbine when needed, thereby providing a cost-effective and sustainable alternative to batteries.

The DOE’s conditional commitment is subject to the completion of environmental reviews and the satisfaction of technical, legal, and commercial conditions.

Hydrostor CEO and co-founder Curtis VanWalleghem said: “We’re thrilled to reach this conditional commitment with the DOE, which is a huge vote of confidence in Hydrostor’s technology and shows how important energy storage will be as we prioritise the reliability and resiliency of the grid for years to come.”

Founded in 2010, Hydrostor operates a utility-scale facility in Ontario and has advanced projects under development in Australia and North America.

World’s largest compressed air energy storage project breaks ground in China
Huaneng Group has begun phase two of its Jintan Salt Cavern CAES project in China. It is set to become the world’s largest compressed air energy storage facility with groundbreaking advancements in power output and efficiency.

December 23, 2024 Vincent Shaw

China’s Huaneng Group has launched the second phase of its Jintan Salt Cavern Compressed Air Energy Storage (CAES) project in Changzhou, Jiangsu province, in a new milestone for the global energy storage sector. Once completed, the project will hold the title of the world’s largest compressed air energy storage facility, integrating groundbreaking advancements in both power output and efficiency.

Phase two of the project will feature two 350 MW non-fuel supplementary CAES units, with a total storage volume of 1.2 million cubic meters. This scale makes it the largest single-unit power generation capacity, total storage capacity, and integrated efficiency of any CAES facility worldwide. The plant’s storage capacity will allow for up to 2.8 GWh of electricity per full charge, with an estimated annual 330 charge-discharge cycles.

The first phase of the Jintan project, completed earlier, saw the installation of a 60 MW CAES unit, offering valuable operational experience and laying the groundwork for the more advanced second phase.

Enel et Energy Vault construisent 18 MW/36 MWh de stockage par gravité aux États-Unis

Energy Vault et Enel ont dévoilé leur projet de construction d’un système de stockage par gravité de 18 MW/36 MWh aux États-Unis. Ils affirment que ce sera le premier stockage d’énergie par gravité à grande échelle dans un pays occidental.

MAI 23, 2024 PILAR SÁNCHEZ MOLINA
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La jeune entreprise écossaise Gravitricity développe, quant à elle, une technologie basée sur les mêmes principes de physique, mais au lieu de hisser des poids en hauteur, les treuils les laissent descendre dans d’anciens puits de mine. Ses fondateurs imaginent des masses de 5.000 tonnes pouvant descendre jusqu’à 1.500 mètres de profondeur. Selon les configurations locales, la puissance développée par une telle installation peut varier de 1 à 20 MW et pourrait produire de l’énergie pendant 15 minutes à 8 heures. Ils annoncent un rendement de 80 à 90 %, ce qui serait remarquable car supérieur à celui d’une STEP (qui est d’environ 75 %) et du même ordre que celui d’une batterie lithium ion.

mobar a écrit : ↑

21 mai 2024, 15:10

https://www.neozone.org/innovation/la-m ... ravitaire/

energy_isere a écrit : ↑

09 mai 2024, 20:16

Le retour de l'air comprimé :

BaroMar : un système de stockage d’énergie sous-marin à air comprimé atteignant un rendement de 70 %
La société israélienne BaroMar projette de tester son système de stockage à air comprimé (CAES). Celui-ci devrait avoir un rendement de 70 % et se démarque par ses réservoirs sous-marins.

Raharisoa Saholy Tiana   9 mai 2024
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https://www.neozone.org/innovation/baro ... ent-de-70/

Franchement je vois pas ce qui est nouveau et permettrait de s'affranchir du mauvais rendement qu'a toujours eu l' air comprimé en stockage.

World’s largest compressed air energy storage project comes online in China
Zhongchu Guoneng Technology Co., Ltd. (ZCGN) has switched on the world’s largest compressed air energy storage project in China. The $207.8 million energy storage power station has a capacity of 300 MW/1,800 MWh and uses an underground salt cave.

MAY 16, 2024 VINCENT SHAW

Chinese developer ZCGN has completed the construction of a 300 MW compressed air energy storage (CAES) facility in Feicheng, China's Shandong province.

The company said the storage plant is the world's largest CAES system to date. Previously, the largest CAES facility was a 100 MW project switched on in October 2022 by the Institute of Engineering Thermophysics of the Chinese Academy of Sciences, also in China’s Hebei province.

ZCGN said the new system consists of a multi-stage wide-load compressor and high-load turbine expander, as well as a high-efficiency supercritical heat exchanger technology and integrated control technology. It claimed that the facility was 30% cheaper than the 100 MW project built by the Institute of Engineering Thermophysics and said its overall efficiency is 72%.
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BaroMar : un système de stockage d’énergie sous-marin à air comprimé atteignant un rendement de 70 %
La société israélienne BaroMar projette de tester son système de stockage à air comprimé (CAES). Celui-ci devrait avoir un rendement de 70 % et se démarque par ses réservoirs sous-marins.

Raharisoa Saholy Tiana   9 mai 2024
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