Nuclear didn’t make electricity too cheap to meter, but it fortunately was a strong weapon against climate change.
Opponents sometimes mock utilities by invoking the infamous prediction that electricity will become "too cheap to meter." But it was the federal government, not utilities, that said this.
The Eisenhower Administration's chair of the Atomic Energy Commission, Lewis Strauss, made the infamous prediction in a 1954 speech to science writers. He wasn't even referring to the nuclear technology that utilities would start using a decade later.