These are their five year stock gains, with the general market for reference.
Market (SP500): 68%
Market(tech): 89%
XEL: +20%
AEP: +51%
SO: +47%
EIX: -5%
CPK: +2.5%
AQN: -64%
NGG: +30%
NEE: -3.5%
Looks like a pretty bad industry for profits, even stacking the dividend on AEP, it still comes up short of SP500.