Geronimo’s Solar
Development Process
Betsy Engelking
September 24, 2013
1
Solar Price Trends
9/24/13 2GERONIMO ENERGY
Overview of Solar Development
• Identify Target Site
• Determine Site Suitability
– Site Orientation
– Potential Shading
– Location relative to load/distribution system
• Site Owner Outreach
– Self Generation/Lease/Own?
• Determine Interconnection Requirements
• Market Project
– Net Meter
– PPA to Utility (or “Buy all/Sell all”)
– Community Solar
9/24/13 3GERONIMO ENERGY
Engineering & Environmental
• Field Work
– Phase I
– Fatal Flaw Analysis
– Wetland delineation
– ALTA survey
• Engineering
– Preliminary Site Plan
– Grading Analysis
– Geotech
• Borings or Pull-Test
9/24/13 4GERONIMO ENERGY
Resource Assessments
Data Sources
• Very different from wind projects!
• Smaller sites, production driven mostly by clouds and latitude.
• Public solar maps, datasets produced by NREL are sufficient.
– Some large projects use met towers, but they are smaller (~8 feet
tall) and cheaper.
• Banks may begin to require on-site data as size of investment (and
associated level of risk increases.
9/24/13 5GERONIMO ENERGY
Minnesota Solar Energy Standard
Utility Xcel Energy Minnesota
Power
Otter Tail
Power
Alliant/
Interstate*
2020 Retail Sales
Forecast (kWh)
30,872,518,000 10,386,689,633 2,746,000,000 901,264,000
Estimated
Exclusions (kWh)
477,943,000 6,664,068,038 91,642,461 12,272,000
Sales subject to
Standard (kWh)
30,394,575,000 3,722,621,595 2,654,357,539 888,992,000
1.5% of Sales
(kWh/MW**)
455,919,000/346 55,839,324/42.5 39,815,363/30.3 13,334,880/10.2
10% of 1.5% (small
solar kWh/MW**)
45,592,000/34.7 5,583,932/4.25 3,981,536/3.0 1,333,488/1.0
9/24/13 6GERONIMO ENERGY
* Alliant/Interstate recently announced the sale of its Minnesota electric systems and customers to a consortium of Southern Minnesota
cooperatives. If the sale is approved, these customers may become exempt from the solar energy standard
** Assuming a 15% solar capacity factor
From Docket E-999/CI-13-542
Aurora Solar Project
• 100 MW Distributed Solar Project
– 22 separate sites
– Each site between 2-10 MW
– Interconnected to Xcel Energy distribution substations
• Proposed in Xcel Energy’s Capacity Acquisition Process
– Only renewable project in the process
– Competing with several natural gas generators
– PUC decision expected Feb-Mar 2014
• Will provide capacity resource and help meet Xcel Energy’s
Solar Energy Standard
9/24/13 7GERONIMO ENERGY
9/24/13 8GERONIMO ENERGY
Questions?
Betsy Engelking
betsy@geronimoenergy.com
(952) 988-9000
1

Fresh Energy's 2013 Power Breakfast | Betsy Engelking: Case Study

  • 1.
    Geronimo’s Solar Development Process BetsyEngelking September 24, 2013 1
  • 2.
  • 3.
    Overview of SolarDevelopment • Identify Target Site • Determine Site Suitability – Site Orientation – Potential Shading – Location relative to load/distribution system • Site Owner Outreach – Self Generation/Lease/Own? • Determine Interconnection Requirements • Market Project – Net Meter – PPA to Utility (or “Buy all/Sell all”) – Community Solar 9/24/13 3GERONIMO ENERGY
  • 4.
    Engineering & Environmental •Field Work – Phase I – Fatal Flaw Analysis – Wetland delineation – ALTA survey • Engineering – Preliminary Site Plan – Grading Analysis – Geotech • Borings or Pull-Test 9/24/13 4GERONIMO ENERGY
  • 5.
    Resource Assessments Data Sources •Very different from wind projects! • Smaller sites, production driven mostly by clouds and latitude. • Public solar maps, datasets produced by NREL are sufficient. – Some large projects use met towers, but they are smaller (~8 feet tall) and cheaper. • Banks may begin to require on-site data as size of investment (and associated level of risk increases. 9/24/13 5GERONIMO ENERGY
  • 6.
    Minnesota Solar EnergyStandard Utility Xcel Energy Minnesota Power Otter Tail Power Alliant/ Interstate* 2020 Retail Sales Forecast (kWh) 30,872,518,000 10,386,689,633 2,746,000,000 901,264,000 Estimated Exclusions (kWh) 477,943,000 6,664,068,038 91,642,461 12,272,000 Sales subject to Standard (kWh) 30,394,575,000 3,722,621,595 2,654,357,539 888,992,000 1.5% of Sales (kWh/MW**) 455,919,000/346 55,839,324/42.5 39,815,363/30.3 13,334,880/10.2 10% of 1.5% (small solar kWh/MW**) 45,592,000/34.7 5,583,932/4.25 3,981,536/3.0 1,333,488/1.0 9/24/13 6GERONIMO ENERGY * Alliant/Interstate recently announced the sale of its Minnesota electric systems and customers to a consortium of Southern Minnesota cooperatives. If the sale is approved, these customers may become exempt from the solar energy standard ** Assuming a 15% solar capacity factor From Docket E-999/CI-13-542
  • 7.
    Aurora Solar Project •100 MW Distributed Solar Project – 22 separate sites – Each site between 2-10 MW – Interconnected to Xcel Energy distribution substations • Proposed in Xcel Energy’s Capacity Acquisition Process – Only renewable project in the process – Competing with several natural gas generators – PUC decision expected Feb-Mar 2014 • Will provide capacity resource and help meet Xcel Energy’s Solar Energy Standard 9/24/13 7GERONIMO ENERGY
  • 8.
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