How will USNAP modules interface to simple appliances such as water heaters?
Simple appliances, such as water heaters, will support two possible scenarios. For those products already installed utilities will likely install a USNAP enabled load control module directly in-line to the power cord attached to the water heater. This will allow on/off control of the device, and perhaps, energy measurement if the additional circuits are provided. In the case of new water heaters, adding a USNAP interface directly into the unit would enable the product to connect to any utility sponsored demand response or conservation program, regardless of the protocol used. Consumers will ultimately be able to acquire the communications module compatible with their smart meter and insert it into the product without requiring a professional installer.
