Open SMART Energy Gateway (OpenSEG) (formerly Residential Energy Display Survey (REDS) Pilot) Security concerns have hindered the widespread development of Home Area Networks (HAN) that can allow users to monitor their energy consumption and respond in near real time to changing prices for energy. Recognizing the need for an architecture that would allow direct display of near real time energy consumption, LBNL developed a simplified approach to getting near real time information from the SmartMeter to the consumer. The result is a specification for a utility HAN / residential local area network gateway that allows transmission of energy usage without incurring the security concerns raised in conjunction with more complex messaging. This specification covers only the design of the gateway itself and anticipates the use of existing display devices (e.g. smart phones, TVs, computers, etc.).