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Presentation from Sierra Club panel discussion on Microgrids in DC


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Includes summary of Crispus Attucks Park microgrid project

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Presentation from Sierra Club panel discussion on Microgrids in DC

  1. 1. Microgrids in DCPanel Discussion 20 February 2012 Hugh Youngblood 1
  2. 2. Topics• Microgrid Motivations• Crispus Attucks Park Microgrid Project – Background – Objectives – Design Considerations – Next Steps• Subsequent Projects 2
  3. 3. Microgrid Motivations• Electrification (community scale)• Reliability – localized distributed generation• Efficiency – Line-loss reduction, Price optimization – Automation, Demand response• Environmental Sustainability – clean energy• Energy Independence – “island” from the grid 3
  4. 4. Crispus Attucks Park (CAP)• Privately managed community park in Bloomingdale, Washington, DC• Maintained by Crispus Attucks Development Corporation (CADC)• DC Dept of Energy provided CADC solar grant in 2006 4
  5. 5. CAP Microgrid Project 5
  6. 6. CAP Project ObjectivesObjective Issue SolutionReduce and avoid costs Water utility bill (irrigation) Stormwater capture and reuse Grid interconnection cost Stand-alone microgridEnhance public safety Loitering after dark Security lightingEnhance user experience Internet connectivity Community Wi-Fi Electricity access AC outletsMaximize energy availability Solar intermittency Energy storageDemonstrate concepts to Park vs Power plant Design for aestheticsother communities Open source documentationGenerate revenue Busy managing the park / SRECs, SRCs need passive streams Ancillary services- EV charging, Network advertising, Telecom leases 6
  7. 7. CAP Design Considerations• System Architecture – Centralized vs distributed storage – AC vs DC grid(s)• System Sizing – PV arrays, storage bank(s) – Reliability and scalability• Maintainability – Maintenance cost / level of effort, workforce – Security vs ease of access 7
  8. 8. CAP Grid Architecture DC Grid,Central Storage AC Grid,Local Storage 8
  9. 9. CAP Next Steps• Detailed design – Standard components + intelligent controls • Fault tolerance, load prioritization – Adjacent systems • Stormwater management, data network • Surrounding homes- water, energy, data• DDOE energy assurance framework• EV integration• Supplementary generation – wind, hydro 9
  10. 10. Subsequent Projects• You can do this in your neighborhood – Upcoming "Solar Garden" legislation will enable community investment• Neighborhood-scale micro-utility companies – Local energy security and resilience 10
  11. 11. Questions / CommentsThank You: Hugh Youngblood Chief Executive Youngblood Capital Group, LLC +1 202 596 9241 11