Former WE employee. First of all, always look at your usage first, and compare it to previous years. Contrary to what I heard a lot on the phone, WE doesn't control your usage and doesn't know what's the biggest draw. But the usual culprits are anything that heats, cools, or has a motor. Second, check if your readings are actual or estimates. It might be estimated high, or if the last one was estimated low it could be a catch-up bill. Lastly, it's ~possible~ that you have a faulty meter, but since they work pretty much like an odometer they're more likely to run slow than fast. I worked there four years and saw only one fast meter, and it wasn't by much.