Depending on the way the power company is structured it may be an arm of the government, or a co-op, etc. Utilities often times benefit from taxpayer money (like schools) and become dependent upon that money, etc. I can certainly see a scenario where the government may shut off that taxpayer cash flow spigot to influence the population (sort of like how the government always threatens to cut back on the police and firefighters if the voters won't vote for some tax increase or other, etc.). Makes me wonder if Obama will trot out an 'infrastructure' speech in the near future, if you get what I'm saying.
So Yeah, in some cases the utility might be private - in other cases, they might not. Add to this the government restrictions that siphon cash away from the utility's coffers that might otherwise go toward repairs and that is another way that the government could well be at fault in this situation...maybe not 100% of the time, but I'd wager it's probably up around 75% of the time.