No nuclear energy, they lost that, and of course nothing beyond it, but they have hydroelectric and solarelectric power, and nonnuclear jet aircraft, and some very good chemical-explosive weapons, which they use very freely on each other.
"Space Viking"
Henry Beam Piper
If these river shores were in the hands of different settlers, it would be impossible for a hydroelectric company ever to go in there and purchase each farm separately at a price that would enable it to develop the power.
"A Stake in the Land"
Peter Alexander Speek
The great hydroelectric dams, the hundreds of steam turbines, the heavy-metal atomic reactors-all useless for power purposes.
"Unwise Child"
Gordon Randall Garrett