Energy storage
Hydrostor is developing truly massive grid storage in watery caverns
Design work is beginning for a 500-megawatt project that could be online by 2025.
By Julian Spector .
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Transmission
How transmission along railroads and highways could break open clean energy growth
High-voltage lines buried along road and rail rights of way could carry renewable power across the U.S. — if a lot of novel challenges can be overcome.By Jeff St. John .
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Policy & regulation
Green 'liberty' bonds: The American way to win the war on climate change?
Taking a lesson from the World War II financing playbook to combat the climate crisis.By Jean Haggerty .
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Energy storage
Newsletter: When promises turn into projects
Canadian startup Hydrostor is making good on its promise to build a new storage technology at massive scale.By Julian Spector .
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Electrification
Chart of the day: Fuel cell industry profits
The hydrogen funding wave and the enormous potential of the hydrogen economy boosted the stock price of public fuel cell companies in 2020 — but not their profits.By Eric Wesoff .
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Climate crisis
Why US utilities must cut carbon emissions faster — and how data can help get it done
A new report from RMI sets a tough schedule for closing fossil-fueled power plants. Its Utility Transition Hub compiles the data to help find a way.By Jeff St. John .
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Energy storage
Are market constraints hampering the evolution of ‘last-mile’ grid resources?
Future grids will need assets on standby for times when there isn't enough wind and solar. But how will these assets be valued and compensated?By Jason Deign .
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Hydrogen
Big Hydrogen doesn't want you to read this
Some people go into business to make money. Others do it to make fuel cells.By Julian Spector .
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Transmission
Biden administration boosts support for transmission jobs and clean energy benefits
An ACEG report finds that interstate transmission projects could drive 1.2 million jobs and increase wind and solar capacity by 50 percent. A new $8.25 billion federal loan commitment could help.By Jeff St. John .