Transmission. Research suggests we could reach 100% wind+solar with a small amount of energy storage backup, if we had a nationwide HVDC transmission grid in the USA. We really need to start thinking harder about moving our electricity around the country. There’s immense value.

SOURCE: Germany could reduce its coal-fired power generation capacity by half in the coming years if planned grid expansion and the addition of new gas-fired plants come online on schedule. He said the lack of grid capacity is likely to have raised the cost of ensuring a stable energy supply system to a record of more than 1 billion euros ($1.18 billion) in 2017.

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