The Smart Meter Device Assurance Scheme

COVID 19: The SMDA scheme remains open and we remain committed to providing a high-quality service to all our members during this time. Testing continues with the majority of tests now being run remotely and with emergency or urgent work conducted on site though there may be a slight impact on the expected delivery dates. We would therefore encourage manufacturers to continue to submit their devices as normal. The governance of the Scheme continues with Management Panel and Board meetings being held virtually. For further information on this, and any other Scheme aspects, please contact the Scheme Operator at

The SMDA Scheme has been set up to provide assurance to consumers, suppliers and financiers that smart meter equipment will work effectively in a smart environment. The Scheme provides assurance testing of smart metering equipment covering both interoperability and interchangeability of the devices.

Interoperability is an obligation on energy supply companies, requiring that smart metering devices interact with the Data Communications Company (DCC) systems and can successfully receive, interpret, act on and respond to messages.

Interchangeability testing checks that all devices on the Home Area Network (HAN) can communicate with one another and interpret and act on commands. It is beneficial to the industry in order to reduce the risk of ‘stranded’ assets.

SMDA is unique in that it is the only assurance scheme that tests each device against multiple devices. We use over 300 test scripts in our assurance tests.