The £13 million facility will produce around 17GWh of electricity per year, meaning the Coleshill sewerage treatment works, where the AD plant is located, will become self-sufficient for its electricity needs.
The AD plant will also help to stop 8,000 tonnes of CO2 from being released into the atmosphere.
The NEC’s director of operations Brian Pell said: “Severn Trent’s site is right on our doorstep, less than four miles away, so it provides us with the perfect location to send our food waste.
“This year, we expect to send around 120 tonnes of food waste to Coleshill to help generate a huge amount of power for the site.”