Why do electric utility stocks have higher PE ratios than telco's such as AT&T etc.

AT&T stock - PE = 7.5, Enterprise Value/EBITDA = 5.49 PEG - Public Service Electric & Gas - PE = 19, Enterprise Value/EBITDA = 13.4 Is it because AT&T is too high tech ? Seems like across the board, all utility stocks have better PE ratios than telco stocks. If a telco is low growth because it is a utility / commodity, why is it so much worse than utility stocks.