Why is my PG&E bill so high?!

*PGE

Located in happy valley. This is the second month in a row that our bill has been over $250. We live in a brand new 2bd/2bath apartment and hardly ever run A/C or heat. There are 2 of us living here. I work 10 hrs a day monday-Friday so I’m gone for most of the day. Normally we just open the windows if it’s hot or close the windows if it’s cold. We rarely keep lights on other than a living room lamp when watching tv or bathroom lights when using them. We cook regularly but are not using any appliances for vast amounts of time to be able to justify such a high price. Is anyone else experiencing this? Or is something wrong? Any and all help appreciated!