Energy storage |
Hyme Energy’s first-of-a-kind CHP retrofit, in Bornholm
Above: Coal fired CHP plants can be repurposed with thermal storage and continue to play their important role of stabilising the grid, says Hyme
Hyme Energy’s molten hydroxide salt based energy storage technology is to be deployed in 2024 at a CHP plant in Rønne, the main city of the Danish energy island, Bornholm.
Hyme has joined forces with Bornholms Energi & Forsyning (BEOF) to build a demonstrator plant to prove its technology in an operational setting. The plant will have a storage capacity of up to 20 MWh and will output around 1 MW. It will provide heat, power and also ancillary services to the grid.
Instead of shutting down outdated fossil-fueled plants and scrapping assets worth billions, these plants can be repurposed to house state-of-the- art energy storage reusing, eg, existing turbines and transformers. This approach “would make the transition of the energy sector less costly, save resources, and – importantly – let traditional power and CHP plants continue to play the important role of stabilising the grid,” says Hyme. Hyme’s technology will be implemented as part of a larger project, “2nd Life in Power Plants”, which aims to show that several storage technologies can be installed together in retrofits of traditional power and combined heat and power plants.
Hyme Energy says it is “particularly happy to be able to deploy its technology on Bornholm”, because it is expected to become an epicentre of the Danish energy sector as an energy island. Energy storage will be needed at large scale on energy islands to compensate for intermittent renewable power production, Hyme believes.
Hyme’s energy storage plants are able to employ molten hydroxide salts thanks to proprietary corrosion control technology developed for nuclear applications by its affiliated company Seaborg.
The Bornholm project will be the first to use molten hydroxide salts in this way, “a game-changer for molten salt energy storage”, says Hyme.
Above: A Hyme storage technology stores electricity in the form of high temperature heat in a molten salt. It enables the flexible dispatch of heat and electricity Credit: Kirt x Thomsen
E2S looks to India
A 250 kWh pilot thermal energy storage unit being supplied by E2S Power to India Power Corporation has passed factory acceptance tests and will be delivered to India in the first quarter of 2023. The technology – designed to be backfitted to retired coal plants, essentially taking the place of the boiler – “will help in transforming thermal power assets into clean energy storage facilities, contributing significantly to the nation’s
Left: E2S pilot thermal storage unit 20 | January/February 2023|
www.modernpowersystems.com
renewable energy growth,” says E2S since it “can be deployed in the near term to provide urgently needed energy storage while using most of the infrastructure in thermal power plants being retired.”
IPCL and E2S Power say they will work jointly with major companies in the power and renewable energy sector in India to “identify, evaluate and offer optimised integrated thermal energy solutions for existing plants and facilities being phased out.”
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