Are smart meters accurate?
Utilities are confident in the performance of their vendors and the equipment they are deploying as part of their grid modernization efforts. The meter make / model utilities selected undergo a variety of rigorous tests before they are approved for use in the field. The standardized tests are used to measure accuracy during various load and weather conditions; the tests are industry accepted and approved by the American National Standards Institute (ANSI).
Additionally, utilities have implemented an enhanced testing procedure where they test a percentage of all meters they receive from the vendor prior to installing them at a customer’s home or business. Utilities also continue to monitor meter accuracy after installation by conducting routine sample and/or periodic testing.
Certainly, utilities understand that with any vendor or equipment, problems can occur after installation, so customers are encouraged to contact their utility if there are ever any questions about the accuracy of the meter or the bill.