Isgd

Southern California Edison (SCE) and its partners will deploy advanced Smart Grid (SG) technologies in an integrated system to be more reliable, secure, economic, efficient, safe, and environmentally friendly. The technology demonstrations will include three main areas: (1) Energy Smart Customer Devices such as smart appliances, home scale energy storage, and photovoltaic (PV) solar systems to achieve Zero Net Energy homes and Zero Grid Impact electric vehicle (EV) charging at work; (2) Year 2020 Distribution System including distribution automation with looped circuit topology, advanced voltage/VAR control, advanced distribution equipment, smart metering, utility-scale storage, and dispatched renewable distributed generation; and (3) a Secure Energy Network to demonstrate end-to-end management of a complex high performance telecommunication system linking the CAISO to SCE’s back office, field networks, and energy smart devices in the home. Other specific aspects of sub-projects include: distribution circuit constraint management, enhanced circuit efficiency and power quality, self-healing circuits, deep grid situational awareness, and end-to-end cyber security and interoperability. The demonstration will be conducted in Irvine, California and will include two 12kV distribution circuits fed by SCE’s MacArthur Substation, residential homes, and EV charging in a parking lot at the University of California, Irvine.

Fourteen residential energy storage units (RESUs) have been installed as part of the Irvine Smart Grid Demonstration (ISGD). Each RESU contains a 4 kilowatt inverter and 10 kilowatt-hours of LG Chem Ltd. automotive-grade lithium-ion batteries, with a total capacity of 56 kW. The RESU provides backup to secure loads in the event of an outage, and couples up to 4 kW of photovoltaic solar panels with the battery. These systems combine a number of control mechanisms to allow valuation of various operating or control modes. The RESUs communicate with SCE SmartConnect Meters and a remote RESU Server to gather published prices, instantaneous demand, Demand Responses, and utility control information. Throughout the two-year demonstration project, the RESUs will be operated in six different operating modes to investigate their value on the customer’s energy usage and SCE’s distribution circuit. The RESUs were commissioned between September 23 and October 1, 2013.


Lithium-ion Battery


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