While it was a well written and reasoned article, he forgets that he spends a lot of time and money keeping the rest of his house low on the power usage. Most Americans still use their 2 decade old appliances and incandescent bulbs. Assuming that the average household's appliances are twice as power hungry that brings 30% towards TV and PC down below 18% of the bill. But I wouldn't be surprised if if most people's appliances are much more thirsty than that.
And what about an electric range?