A supermarket in England will begin using a new energy source this week that will be used to power its cash registers - speed bumps. 

According to GreenBiz.com, supermarket giant Sainsbury’s has installed new Kinetic Road Plates that will harness energy from vehicles driving in and out of the store’s car park.  The system, which has been developed by U.K. startup Highway Energy Systems works using plates that move when vehicles drive over them, creating enough kinetic energy to drive a generator.

Along with the kinetic energy system, Sainsbury’s features several other environmental technologies, including rainwater harvesting systems, solar thermal panels for heating water, sun pipes designed to increase the use of natural light, and energy management systems designed to ensure energy efficiency is constantly optimized. The speed bumps are also being tested to power street lights, traffic lights and road signs in London, and could be implemented throughout England if they are successful.

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