The Green Button standard requires that the energy-usage information data stream cannot contain any Personally Identifiable Information (PII) and must be transmitted using a secure-transmission process; thus protecting the customer’s privacy and energy-usage information.

However, some energy-usage applications require access to a customer's location or multiple meter locations. To address this requirement, the OpenADE Task Force, a committee of the UCAIug, has defined a Green Button Retail Customer Schema that provides this information to enable utilities to protect customers’ PII while allowing them to meet regulators’ and Third Party non-energy information requirements. The Retail Customer Schema requires utilities to transmit the PII in a separate, secured transmission apart from the data stream used to transmit a customer’s energy-usage information and it requires the receiving application to logically connect the two, separate data streams. Additionally, the Retail Customer data stream transmission must be authorized by the utility’s customer.