ABB has signed an agreement with UK-based gravity energy storage firm Gravitricity to explore how hoist expertise and technologies can accelerate the development and implementation of gravity energy storage
Edinburgh-based energy storage startup Gravitricity has found a novel way to keep the costs of gravity storage down: dropping its weights down disused mineshafts, rather than building towers...
ABB has signed an agreement with UK-based gravity energy storage firm Gravitricity to explore how hoist expertise and technologies can accelerate the development and implementation of gravity energy storage
ABB has signed an agreement with Gravitricity to explore how hoist technologies can accelerate gravity energy storage systems in former mines. Discover more brands like The Engineer Engineering publications
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ABB has a long history with mine hoists, having first electrified one in Sweden in the 1890s. ABB manufactures or uses mine hoists according to Charles Bennett, Global Service Manager, Business Line Hoisting, ABB Process Industries.
The new storage system, called GridScale, stores energy in large tanks filled with crushed stone. CEO at Andel, Jesper Hjulmand: ”As a society, we are facing an absolutely crucial and comprehensive task in reducing climate change. Seen in the light of the most recent IPCC climate report, the task has not diminished.
The need for long-term storage really starts to bite when energy systems are made up of more than 80 percent renewable energy. That figure is a very long way off for most countries.
Indeed, a 2022 US Department of Energy study concluded that gravity energy storage is relatively expensive in smaller installations. Where it's most economical is in high-capacity systems that generate power for relatively long periods of time — 10 hours or more.
The technology has advanced rapidly in recent decades, says Dan Shreve, global head of energy storage at Wood Mackenzie, an energy research and consultancy firm. For the most part, they have been used for short-term energy storage (up to six hours), he says, and as decarbonization ramps up, demand for more durable storage will rise.
It is a highly efficient solution due to a low loss of energy. The GridScale energy storage consists of one or more sets of steel tanks filled with crushed stone. Charging and discharging is obtained using a system of compressors and turbines.
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