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

Union of Concerned Scientists

Heres a taste, from US projects, technologies, electrons, and investment, to happenings in the world as a whole. Solar US solar looks set to come very close to almost match, or even surpass, the record it set in 2023 for new installations. It added up to 24% of total electricity generation in 2024, compared with 23% in 2023.

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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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What Are Distributed Energy Resources?

Union of Concerned Scientists

A visual representation of the conventional grid, moving from left to right: Large, centralized plants (dominated by fossil fuels and nuclear) generate electricity; high voltage transmission lines carry electricity to cities and communities; distribution systems deliver electricity to homes and businesses. How is the grid changing?

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What are the environmental impacts of artificial intelligence? 

Union of Concerned Scientists

One growing conversation in the use or non-use of GenAI is the environmental implications of the technology in every step of its life cycle. The communities breathing polluted air near data centers or those experiencing increased energy costs are the ones at the frontline of the technology’s impacts and often last its benefits.

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Does California Need New Nuclear Power Plants?

Union of Concerned Scientists

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. The cost of other energy technologies matters as well. Second, as I mentioned earlier, the cost of other clean energy technologies matters too.

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

Enviromental Defense

Yet, reaching net zero also means phasing out polluting fossil fuel energy, so the government developed rules to impose a pollution limit on electricity producers. The regulations work by placing an annual limit on the pollution from electricity produced using fossil fuels. GW in 2023.

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Power Hungry: Why Data Centers Are Developing Their Own Energy Sources to Fuel AI

Union of Concerned Scientists

Now, Virginia has more data centers than anywhere, and in 2023 those data centers used over 25% of electricity sold in the state. And so, desperate times call for desperate measures, like Microsoft co-locating data centers with nuclear plants, or Meta commissioning the construction of dirty fossil fuel plants to power data centers.