We’ve all been there: You’re hit with an unusually high energy bill and you aren’t sure why. While we expect our energy bills to increase during certain times of the year, we still expect some consistency. When there are unusual bumps, we want to know why.

In some cases, these unusual bumps can be traced to hidden energy drains, or “energy vampires.” Most of these energy vampires are far more insidious than a noticeable bump to your energy bill. Why? Because we’re often paying for electricity we didn’t even realize we were using. What are these energy drains and what can you do about them?