This was the ”yes-book”, published ahead of the Swedish referendum in the spring of 1980 on the use of nuclear power plants. It argues for the use of the already approved 12 nuclear plants during their technical life time - instead of closing them down within ten years, as was the “no” position in the referendum. In particular, the authors claim that it would be a gigantic economic waste to close down well functioning nuclear power plants, which also make the Swedish electrical production nearly fossil free.