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Perspectives on Grid-Integrated Microgrids Maryland Clean Energy Summit

Perspectives on Grid-Integrated Microgrids Maryland Clean Energy Summit. John B. Wharton, PE Technical Executive Baltimore, Maryland October 16, 2013. Microgrids in the News. Microgrids What is a microgrid?. Bulk supply connection. Single Customer Microgrid. Distribution Substation.

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Perspectives on Grid-Integrated Microgrids Maryland Clean Energy Summit

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  1. Perspectives on Grid-Integrated MicrogridsMaryland Clean Energy Summit John B. Wharton, PE Technical Executive Baltimore, Maryland October 16, 2013

  2. Microgrids in the News

  3. MicrogridsWhat is a microgrid? Bulk supply connection Single Customer Microgrid Distribution Substation • Interconnected loads and distributed energy resources • Acts as a single controllable entity • Connects and disconnects from the grid DER DER Other Feeders DER Feeder Full Substation Microgrid DER Full Feeder Microgrid Partial Feeder Microgrid

  4. Why Microgrids? Remote Power Systems Impact of Natural Gas Resiliency

  5. Other Drivers for Increased Interest • Improved Technology • Opportunities for Combined Heat and Power • Energy Security • Public Policy

  6. What is happening in Japan? • $32M Subsidy for application of Building Energy Management Systems (BEMS) and Home Energy Management Systems (HEMS) • Feed in Tariff for PV Applications (approx 40 cents/kwh) • Residential and commercial storage applications also subsidized (Orix storage leasing program $50/month) • Electric vehicle charging with two way capability

  7. Utility Challenge – Integration

  8. Summary – Where do microgrids fit? 1. The Economics of Local Generation • Optimize energy source based on market • Ability to participate in ancillary services and demand response • Combined heat and power opportunities 2. Additional Benefits of a Microgrid • Continuity of Service – Resiliency 3. Additional Costs and Challenges of a Microgrid • Additional costs and complexity for interconnection and protection • Requirements for safety • Requirements for control and capacity during island operation, and maintaining power quality 8

  9. EPRI Related Research • Draft Primer on Microgrid Technology and Applications • Investigation of the Technical and Economic Feasibility of Micro-Grid-Based Power Systems 1003973. • Distributed Renewable Energy Generation Impacts on Microgrid Operation and Reliability, 1004045 • Program on Integrating Distributed Generation into the grid • Program on Energy Storage Systems and Distributed Generation Technologies • Distribution and Transmission Grid Resiliency

  10. Together…Shaping the Future of Electricity

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