Download and install the Efergy Elink software. Plug your E2 Energy Meter into your computer via the supplied USB and the Elink software will auto load up. Select “Get Data” and your history will be downloaded to the Elink software. From there you can drill down and see your usage. You can get full details on each Day, Month and Year total electricity usage and is fully customize-able to whatever you like. You can even store a backup of your electricity usage on your computer in case of a failure.