US Unveils Plan to Decarbonize Power Plants, Speed Up Transmission

The Biden administration announced comprehensive regulations to upgrade the aging US electrical grid and reduce greenhouse gas emissions from power plants. The regulations establish the first-ever limits on carbon emissions from power plants, tighten restrictions on mercury and coal ash, and include a new process to expedite the construction of essential transmission lines. These actions align with the administration’s climate spending laws and aim to eliminate nearly 1.4 billion metric tons of carbon pollution by 2047, equivalent to taking 328 million gasoline-fueled cars off the road or a year’s worth of emissions from the current US electric power sector. While the new regulations exempt existing natural gas plants, the EPA is considering ways to reduce their emissions after receiving feedback from industry stakeholders. To facilitate the expansion of renewable energy, the Department of Energy has introduced rules to streamline the approval process for new transmission lines and established a new federal program to accelerate permitting. The administration also highlighted advancements in nuclear fission and geothermal energy as zero-carbon alternatives to power plants.

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