The US lent up to $1.9bn to restart Duane Arnold, the Iowa nuclear plant selling most of its power to Google. Regulators still have to approve it.

The U.S. Department of Energy under the Trump administration has financed three plant restarts and made other conditional commitments to bring nuclear power online.

NextEra Energy is one of three U.S. energy companies to win backing from the Department of Energy to revive shut-down nuclear plants to meet soaring power…