The construction materials becoming brittle due to constant bombardment with nuclear emissions? Not noticeable in a hydroelectric dam. The materials becoming br

The construction materials becoming brittle due to constant bombardment with nuclear emissions? Not noticeable in a hydroelectric dam. The materials becoming brittle and breaking down due to constant exposure to heat? Steam does not normally factor in hydroelectric production. Nuclear ages faster then thermoelectric, which ages faster than hydroelectric. It's a tradeoff.