Roomates electricity usage
So I live with an older woman I'm renting from her. She leaves lights on constantly. She leaves her bathroom light on all night even though I gave her a nightlight to use. She still keeps it on all night it's probably on right now. On weekdays I always wake up around 5am so when she goes to work I can instantly turn off the kitchen light she keeps on even though I'm still asleep and her animals are in her room. I've seen one power bill that was $1000 I don't know if it's also late fees or if that's just how much insane electricity she uses. In my last apartment I have never paid more than $40 in electricity. How can I talk to her into using less electricity. I'm not paying the bill now but we're about to move into a new place and she asked me to put the bills in her name I can't afford $1000. I can barely afford the now $700 in rent I'll be paying.