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[Solar PV]x[Microgrids] The Matrix Solution

[Solar PV]x[Microgrids] The Matrix Solution. SunSpec Alliance Members Steve Pullins, President February 2013. Solar PV Ties to Microgrid. Multiple resources Campus rooftops Active controls to support dispatch and load management

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[Solar PV]x[Microgrids] The Matrix Solution

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  1. [Solar PV]x[Microgrids]The Matrix Solution SunSpec Alliance Members Steve Pullins, President February 2013

  2. Solar PV Ties to Microgrid • Multiple resources • Campus rooftops • Active controls to support dispatch and load management • Effective use of energy storage that can work in conjunction with PV • Above average use of renewables

  3. [Solar PV]x[Microgrids] The truth of LCODE (levelized cost of delivered energy) Low Capacity Factor Low O&M Cost At or Near Peak Load No Min Capacity at Night No Emissions No Fuel Transport Cost Very High Capacity Factor Cost Competitive: 2 - 40 MW Resource Portfolio Large Diurnal Power Difference Emissions Reduction Very High Reliability Important Questions: Will natural gas be a long-term baseload affordable fuel resource? Will biogas or biomass become a long-term baseload affordable fuel resource? Will the capital cost of installing solar PV continue to lower – lower LCODE?

  4. Example: 1 Microgrid / 3 Sites / 7 Systems …in San Diego

  5. Natural Gas Challenge

  6. Natural Gas Challenge 2017 Source: EIA AEO2012

  7. Natural Gas Challenge Source: EIA AEO2012

  8. Natural Gas Challenge Source: EIA AEO2012

  9. Projecting Volatility Source: EIA AEO2012

  10. Natural Gas Competition Source: EIA AEO2012

  11. Emissions Challenge Source: EIA AEO2012

  12. Renewables Challenge Source: EIA AEO2012

  13. Energy Storage Challenge Source: EIA AEO2012

  14. Case Study – Sports Venue • 4.2 MW of PV • 1.6 MW of energy storage • 107% renewable energy served for venue load (523 MWh excess) The sports venue has a unique customer service that can set it apart. • Consider 50 MWh excess production available for charging • 228 kWh available for charging at 219 events annually for 3 hrs • 76 EV’s charged on solar energy Now consider the dispatchable 76 kW regulation service that could be used by the utility on this 10 MVA circuit at a peak time.

  15. Load and Resource Profile

  16. Levelized Cost of Energy (LCOE at Gen Output) Capacity Factor? 2017 NG Fuel Cost runs ~$4.30/mmBTU. None of these costs include the T&D costs to get the power to the consumer, which adds ~10%. Source: EIA AEO2012

  17. Levelized Cost of Energy (LCOE at Gen Output) “The levelized cost calculations presented in the tables apply only to utility-scale use of those technologies.” Source: EIA AEO2012

  18. OK, Let’s Talk Capacity Factors 2011 Fleet Average Capacity Factor = 43.2% Source: Data from EIA Electric Power Annual 2011 (Jan2013)

  19. Levelized Cost of Delivered Energy (LCODE) All in 2010 USD *One of our projects - 7% cost from Energy Storage **With Federal Investment Tax Credits

  20. Conclusions • The distributed solar PV resource will almost always find a place in microgrids because of the cost and partial coincidence with peak load. • Need to push lower PV installation costs. • Need more high quality PV sources that prove 30+ year lifetimes. • While the 0.5% annual degradation could be lower, it is financially workable now. • Converged distributed PV / Energy Storage provide options that are well suited to microgrids.

  21. Thank you! Questions? Contact info: Steve Pullins spullins@horizonenrgygroup.com 865.300.7395 www.horizonenergygroup.com

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