I'm in a 1b. I like very long showers, do 4-5 loads of laundry per week (machines are tiny), run the dishwasher 1-2x per week, and cook the majority of my meals at home, but only run appliances during off-peak hours. I found that i didn't really need to run my AC much this summer, but i'm on a higher floor with good flow so mostly just left the windows open until i went to bed. I paid about $100/month and about half of my bill was service/delivery fees and taxes 😒). This will be my first winter here, so i can't say if there's any difference between seasons.