$23/month round the year. We bought into a community solar garden which offsets 100% of our usage (and we sell back the excess through net metering, $62 last year) so we just pay the base charge plus tax. (Actual usage cost is about $80 in the summer and $95 in the winter.)

1600 sf house built in 1928, but we installed high-quality windows and insulated it. Gas heat, window a/c in the bedroom for summers, lots of computer equipment as we both work at home.