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Gravity-Based Batteries Try to Beat Their Chemical Cousins

Gravity-Based Batteries Try to Beat Their Chemical Cousins

Gravity-Based Batteries Try to Beat Their Chemical Cousins
Alongside the chilly, steel-gray water of the docks here stands what looks like a naked, four-story elevator shaft—except in place of the elevator is a green, 50-ton iron weight, suspended by steel cables. Little by little, electric motors hoist the weight halfway up the shaft; it is now a giant, gravity-powered battery, storing potential energy that can be released when needed. Reversing direction, the motors become electric generators, sending up to 250 kilowatts of power back to the grid. For peak power, the weight can descend in 11 seconds—but for testing purposes, it moves just a few meters at “creep speed,” says Douglas Hitchcock, project engineer at Scottish startup Gravitricity. The company announced this week that its small-scale demonstrator is now operational, capable of switching between drawing energy from the grid and sending it back in a matter of seconds. The design offers an alternative to the chemical batteries that dominate the global energy storage market—a market that is growing hand in hand with renewable power, which needs to bank energy when the Sun shines or the wind blows, and release it when the grid faces high demand. Gravitricity is one of a handful of gravity-based energy storage companies attempting to improve on an old idea: pumped hydroelectric power storage. Engineers would dam up a reservoir on a hill, pump water to it at times of low demand, and release it to generate electricity. But the systems require specific terrain, expensive infrastructure, and planning approval that is increasingly hard to come by. These days, banking energy usually means hooking up renewable power to giant batteries.
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Peak Sustainability Group Joins Maul Foster & Alongi

Peak Sustainability Group Joins Maul Foster & Alongi

Vancouver, Wash. – Maul Foster & Alongi, Inc. (MFA), a leading Pacific Northwest multidisciplinary firm, is excited to announce the acquisition of Peak Sustainability Group, a respected Bellingham, Washington-based firm specializing in climate change and sustainability services. The acquisition of Peak reflects MFA’s ongoing commitment to environmental stewardship and sustainable business practices. This partnership enables MFA…

Peak Sustainability Social Hour

Peak Sustainability Social Hour

Thank you for the wonderful turnout at the 2024 First Quarter Sustainability Social Hour at Structures on Monday, March 18! We had close to 100 people at this quarterly sustainability networking event co-sponsored by Peak Sustainability Group, Sustainable Connections, and ReSources. You could feel the energy of people passionate about climate and sustainability. It’s also…

Peak Sustainability Group celebrates 13 years

Peak Sustainability Group celebrates 13 years

It’s more than an anniversary: we’re building a sustainable future Since early 2011, our founder David Roberts has been on a mission. From the spark of one dedicated individual, we’ve grown into a force for climate action, clean energy, and sustainable practices. After rebranding as Peak Sustainability Group in 2020, we set out to build…

Strategic resilience in the US wine industry

Strategic resilience in the US wine industry

How to be resilient when wildfire threatens an industry Wildfire smoke can impact the quality of wine, but vignerons won’t know what the damage is until the wine is opened. Grapevines themselves are pretty resilient to fire, but wildfire smoke can taint the flavor significantly AND the impact might not be revealed until the wine…

Electric recycling and garbage trucks catching on

Electric recycling and garbage trucks catching on

Electrification is catching on in the hauler industry. Republic Services is going all-in on fully integrated electric recycling and garbage trucks. With a fleet of over 17,000 vehicles nationwide, this sustainability initiative puts Republic in the vanguard of leaders in their industry. Republic is one of the largest operators offering residential and commercial recycling and…

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