When my husband and I decided to install an air compressor in our garage, we had no idea the electrical draw that would come from the large tank we had invested in. After tripping several breakers the first time we turned it on, we decided it was time to call an electrician. We learned a lot as our electrician ran a whole new electrical circuit for our new compressor, including the basics of electrical demand and household circuit capacity. I created this site to teach other homeowners like us the same information. I hope the pages here help you feel more confident about your home's electrical needs.