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2024 Year in Review: Clean Energy Progress Steeped in Solar and Storage

Union of Concerned Scientists

As it turns out, 2024 has provided a whole lot of clean energy progress as fodder for that stock-taking. Heres a taste, from US projects, technologies, electrons, and investment, to happenings in the world as a whole. 2024s growth was led by Texas, Florida, and California.

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Maine Commits to 100% Clean Electricity by 2040 

Union of Concerned Scientists

The bill ( LD 1868 ), passed by the Maine Legislature on June 13, will reduce the state’s reliance on imported fossil fuels by requiring all of Maine’s power to come from renewable energy and other carbon-free electricity sources by 2040. She signed the bill into law on June 20, 2025.

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Ask a Scientist: How Close Are We to a Clean Energy Transition?

Union of Concerned Scientists

What’s the latest on the transition to clean electricity? On a grid powered primarily by clean energy, energy storage will play a critical role in keeping the lights on when people are using a lot of electricity and renewable energy generation is low. And almost 98% of electricity demand in one week was powered by solar.

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How Many Minerals Do We Really Need for EV Batteries? 

Union of Concerned Scientists

Electric vehicles (EVs) are a cleaner option than gasoline alternatives and are essential for reducing emissions that cause climate change and illnesses. But how we get to fully electric matters. Implementing strategies that result in better EV efficiency, right-sized range, and reduced VMT will result in savings of 1.5 Dunn et al.,

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Does California Need New Nuclear Power Plants?

Union of Concerned Scientists

As one energy news outlet put it, 2024 was a breakout year for the US nuclear power sector at least on paper. More recently, a 2023 bill would have exempted SMRs from the ban on new nuclear power plants, and a 2024 bill would have required a study on the feasibility and benefits of deploying SMRs.

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What are the environmental impacts of artificial intelligence? 

Union of Concerned Scientists

They require far more powerful processors called GPUs (Graphics Processing Units), consume dramatically more electricity, and need significantly more water for cooling. A single AI-focused data center can use as much electricity as a small city and as much water as a large neighborhood.

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Canada’s Clean Electricity Regulations: What You Need To Know

Enviromental Defense

To build a clean economy and avoid a climate disaster, Canada needs an emissions-free electricity supply. As we electrify everything, from our cars to our home heating systems, we need electricity to come from sources that dont emit greenhouse gases. The Clean Electricity Regulations are an important part of Canadas climate plan.