U.S. Electrical Grid Undergoes Massive Transition to Connect to Renewables

The U.S. electrical grid is the largest interconnected machine on Earth: 200,000 miles of high-voltage transmission lines and 5.5 million miles of local distribution lines, linking thousands of generating plants to factories, homes and businesses. The National Academy of Engineering ranks it as the greatest engineering achievement of the 20th century. What it cannot do is support the massive shift to low-carbon power that scientists warn will be needed to avoid catastrophic climate change impacts. [More]

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