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Solar Siting Survey for EBCE: Unlocking Potential for Local Solar Development

This webinar provides an overview of the Solar Siting Survey (SSS), which identifies potential sites for solar development in the East Bay Community Energy (EBCE) service territory. The survey reveals over 650 MW of technical solar siting potential on built environments, with a focus on parking lots and garages. The report includes interactive maps, a searchable spreadsheet, and key findings that highlight the opportunities for local solar projects.

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Solar Siting Survey for EBCE: Unlocking Potential for Local Solar Development

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  1. East Bay Community EnergyLocal Development Business Plan Solar Siting Survey Overview Webinar November 30, 2017 LDBP Project Team: Special Advisors: Betony Jones & Gary Calderon

  2. Overview of Solar Siting Survey (SSS) for EBCE Craig Lewis Executive Director Clean Coalition 30 November 2017

  3. SSS size the Wholesale DG market segment Project Size Central Generation Serves Remote Loads 50+ MW Wholesale DG Serves Local Loads 500 kW Retail DG Serves Onsite Loads 5 kW Distribution Grid Transmission Grid Behind the Meter

  4. Wholesale DG drove huge solar use in Germany Solar Markets: Germany vs. California (2002-2012) Cumulative MW Sources: CPUC, CEC, SEIA and German equivalents. Germany deployed over 10 times more solar than California in the decade from 2002 — despite Californiahaving 70% better solar resource.

  5. The majority of German solar is local solar 26% 23.25% 22.5% 19% 9.25% Source: Paul Gipe, March 2012 Germany’s solar deployments are almost entirely sub-2 MW projects on built-environments and interconnected to the distribution grid (not behind-the-meter).

  6. German rooftop solar is 4 to 6 cents/kWh today • Conversion rate for Euros to Dollars is €1:$1.07. • California’s effective rate is reduced 40% due to tax incentives and then an additional 33% due to the superior solar resource. Replicating German scale and efficiencies would yield rooftop solar today at only between 4 and 6 cents/kWh to California ratepayers. * For projects that are not sited on residential structures or sound barriers.

  7. Germany’s FIT enhances energy democracy Source: Germany Energy Transition

  8. Solar Siting Survey deliverables • Searchable spreadsheet including detailed results and linking to the interactive maps • Interactive maps in the form of Google Earth .kml files with icons marking structures and aggregations with details available in pop-up windows • Google Map versions are also made available • Summary report of key findings and methodology

  9. Summary of key findings • Over 650 MW of technical solar siting potential was found on built environments in the projected EBCE service territory that can support at least 1 MW sized projects • Note that the technical solar siting potential will be reduced by constraints that were not considered like structures that cannot support extra weight without significant upgrades and grid bottlenecks that would result in excessive solar curtailment (or require time-shifting dispatchabilityvia energy storage) • 30% of the total comes from parking lots and parking garages • Extrapolations to lower minimum project sizes: • 1.2 GW minimum total potential for projects sized at least 500 kW • 2 GW minimum total potential for projects of at least 100 kW

  10. SSS interactive map: Alameda County Overview

  11. SSS interactive map: Marina Square with ICA

  12. Solar siting capacity by site count

  13. Thank you The Draft EBCE LDBP Solar Siting Survey Report is posted for public review and comment at: http://ebce.org/local-development-business-plan/ The deadline for submitting comments is: December 8, 2017 LDBP Project Team: Special Advisors: Betony Jones & Gary Calderon

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