Duane Tilden:
d46-big-hydro-dynamo
Duane Tilden:
i194-2-Pelton-generator
Duane Tilden:
d78-big-hydro-birds-eye-view
Duane Tilden:
d79-big-xsection-rock-and-timber-dam
Duane Tilden:
Compound_steam_engine_generator
Duane Tilden:
Control_Room__Mangahao_Power_Station
Duane Tilden:
Dynamo_Room__Mangahao_Power_Station
Duane Tilden:
doe_shippingport_630px
Duane Tilden:
Three Mile Island