The amount we pay for gas and electric, there should be no excuse for Blackouts.
Except that for the past 10 or 20 years the ability of the electricity companies to build new generating facilities as older ones are either closed down due to end of design life, or in the name of "being green", to build the replacements has been pretty low (I'm not going to sazy zero, but a lot lower than it should have been if the government had the balls to deal with an issue that isn't going to hit this side of an election*).
Every single time they even think of applying for planning permission to build a new plant, regardless of the type or location they seem to get rentamobs and nimby's turning up to protest, and then the legal challenges that take longer to sort than designing and building the plant from scratch.
It's hard to blame the electricity companies for power issues when every time they've suggest/tried to plan to prevent the problems they've run into multi year legal battles to even get planning permission.
I would be far more inclined to place any blame for any power cuts at the feet of the politicians.
They're the ones who have approved and required things like green legislation that has required power stations that could have been converted to be shut down.
They're the ones who have pandered to every "environmental" and "concerned locals" group who have decided that wherever the suggested location for the stations is, is wrong, and done nothing to support the police and power companies when the protesters have disrupted the planning and building processes, meaning that even once the planning process has finished there are likely to be massive ongoing additional costs and delays with construction. That's even ignoring the protesters who manage to get over the fence at operational power stations.
*And when it does, whichever party is in power will be able to blame the last government by the other party.