Includes summary of Crispus Attucks Park microgrid project

1. Microgrids in DC
Panel Discussion
20 February 2012
Hugh Youngblood
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2. Topics
• Microgrid Motivations
• Crispus Attucks Park Microgrid Project
– Background
– Objectives
– Design Considerations
– Next Steps
• Subsequent Projects
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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
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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
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5. CAP Microgrid Project
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6. CAP Project Objectives
Objective Issue Solution
Reduce and avoid costs Water utility bill (irrigation) Stormwater capture and reuse
Grid interconnection cost Stand-alone microgrid
Enhance public safety Loitering after dark Security lighting
Enhance user experience Internet connectivity Community Wi-Fi
Electricity access AC outlets
Maximize energy availability Solar intermittency Energy storage
Demonstrate concepts to Park vs Power plant Design for aesthetics
other communities Open source documentation
Generate revenue Busy managing the park / SRECs, SRCs
need passive streams Ancillary services- EV charging,
Network advertising, Telecom
leases
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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
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8. CAP Grid Architecture
DC Grid,
Central Storage
AC Grid,
Local Storage
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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
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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
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11. Questions / Comments
Thank You:
Hugh Youngblood
Chief Executive
Youngblood Capital Group, LLC
+1 202 596 9241
hugh@youngbloodcapitalgroup.com
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