Where must the 200A metering equipment be installed?

The metering equipment for a 200A service must be installed on the supply side of the panel. This is because metering devices are designed to measure the amount of electrical energy being supplied to a building or a specific service point. By placing the metering equipment on the supply side, it ensures that the measurement accurately reflects all electricity flowing to the building before it is distributed through the electrical panel.

Additionally, having the metering on the supply side allows utility companies to effectively monitor and bill for the energy consumed. It also helps protect the metering equipment from any potential load issues that may arise on the load side, ensuring that it can function correctly and reliably.

In contrast, options that suggest installation on the load side, in the basement, or at the main transformer do not adhere to standard electrical codes and practices that govern where metering should be placed. These practices ensure accurate metering and safety in electrical installations.