PRODUCT GUIDE Metering This product clamps onto a home's utility meter and displays real-time costs of electricity for the house. Photo: BlueLine Innovations Behind the recommendations Related articles Behind the recommendations Related articles Metering This electrical and water metering equipment provides the right information to verify performance and diagnose problems. More about Metering Yes, Virginia, Submetering Does Help You Save Energy Feds to Raise Renewable Energy Use and Install More Meters Sika: Submetering Water at the Fixture Level Measuring Energy Use in Buildings: Do Our Metrics Really Add Up? How much energy our buildings use matters a great deal, but figuring out how to measure that use and compare it from building to building is tricky. Here's a guide to key metrics and how to use them.