HomeMy WebLinkAbout20190520 - Community Solar Review of Options presentation
Community Solar
Review of Options
Peter Lindstrom and Lissa Pawlisch
Clean Energy Resource Teams (CERTs)
Hastings Utility Committee Presentation, May 20, 2019
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Available Solar Subscription Options
o What is different now than in 2017 when the Council visited this idea?
- Risks and benefits of solar subscriptions
o Option to partner directly with Excel
- Future of Solar and other renewable energy sources (wind)
Mission: We connect individuals and their communities to the resources they need to identify and implement community-based clean energy projects
CERTs:
Minnesotans Building a Clean Energy Future
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The Clean Energy Resource Teams—or CERTs—are a statewide partnership with a shared mission to connect individuals and their communities to the resources they need to identify and implement
community-based clean energy projects. We empower communities and their members to adopt energy conservation, energy efficiency, and renewable energy technologies and practices for
their homes, businesses, and local institutions.
B3 Benchmarking – The Hastings
Opportunity
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Energy Efficiency Initiatives
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B3 Benchmarking – Red Wing
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You’ve Got Options!
Green Tariffs
Xcel Renewable Connect
Green Pricing/RECs
Community Solar Gardens
Third-Party Solar Financing
Direct Purchase
Green pricing doesn’t have to 5-10 years.
Fine line between recs, green pricing and green tariffs. Differences in the structure of the agreement.
Other utilities have green pricing that are similar or you could go out on the market and by recs.
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Green Tariffs & Community Solar Gardens
High level comparison of attributes.
Benefits to both, and yet some differences.
Can do a combination.
Xcel Renewable Connect – governments can choose a subscription size.
Renewable energy certificate.
month-to-month to five and 10 year terms
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Xcel’s Renewable*Connect
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Definition:
Centrally-located solar photovoltaic (PV) systems
that provide electricity to participating subscribers
What are Community Solar Gardens?
mncerts.org/solargardens
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City Community Solar Subscribers
Annandale Public Schools
Bloomington Schools
Blue Earth Co
Burnsville
Chanhassen
Chanhassen
Columbia Heights
Edina
Falcon Heights
Faribault
Hennepin County
Hennepin County Medical Center
Hugo
Inver Grove Heights
Jordan
Lakeville School district
Leech Lake Band of Ojibwe
Mahtomedi
Mankato
Mankato Schools
Maplewood
Met Council
Minneapolis
Minnetonka Schools
Northfield
Oakdale
Paynesville
Paynesville Schools
Ramsey County
Red Wing
Red Wing School Dist.
Rice County
Robbinsdale
Rogers
Rosemount
Roseville
St. Anthony Village
St. Cloud
St. Cloud Schools
St. Paul
Stillwater
Taylors Falls
Woodbury
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How Does it Work?
SUBSCRIBERS: individuals or groups to get solar power
3rd Party Operator develops & runs garden. They also maintains relationship w/ subscriber for payment.
Utility provides subscriber w/ bill credit.
Subscriber Requirements The following rules apply to all Solar*Rewards Community subscribers: • A subscriber must be an electric retail customer of Xcel Energy • Subscriptions must not
exceed 120% of your average annual electric energy usage • Subscriptions must not exceed 40% of a single garden • Subscribers will be provided a monthly credit on their bill. The credit
will be determined on a dollars per kilowatt-hours produced ($/kWh) basis by Xcel Energy.
https://www.xcelenergy.com/staticfiles/xe-responsive/Admin/Managed%20Documents%20&%20PDFs/MN-SRC-Subscriber-FAQs.pdf
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Subscription Models
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Are Subscriptions Available?
Current rules allow subscriptions from CSGs in your home county or an adjacent county.
Per Xcel’s list, there are 7 subscriptions available in surrounding counties.
Source: https://www.xcelenergy.com/programs_and_rebates/residential_programs_and_rebates/renewable_energy_options_residential/solar/available_solar_options/community-based_solar
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Bill Credits Rates
Each application Deemed Complete in a given calendar year will have a VOS Bill Credit Rate table applicable to the vintage of the VOS based on the calendar year it was Deemed Complete
(“VOS Vintage Year”). •
Each VOS Vintage Year table of Bill Credit Rates will have separate rates for each of the 25 years of production from the garden:
– The rate for Year 1 for a given VOS Vintage Year will apply for all Bill Credits associated with production in the first calendar month associated with the Date of Commercial Operation
and all subsequent calendar months in the same calendar year.
– The VOS Bill Credit Rate for Year 2 for a given VOS Vintage Year will apply for all calendar months in the following calendar year.
– In the same way, the rates for Year 3 through 25 shall apply in sequential order for each of the following calendar years. – Where the Date of Commercial Operation is not January 1,
the Year 25 rate shall also apply to the final calendar year up to the end of the Term of the Contract.
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Historical Energy Trends
Source: Doug Tiffany, https://www.cleanenergyresourceteams.org/sites/default/files/Xcel-CSG-Calculator-CERTs-DougTiffany_Narrative_2.pdf
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Where is the Risk: ARR
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Where is the Risk: VOS
Roughly half of the energy used by city hall.
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What Does the Future Hold?
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Want to Follow Up?
Peter Lindstrom
plindstr@umn.edu
612-625-9634
Lissa Pawlisch
pawl0048@umn.edu
612-624-2293
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Who has done Direct Purchase?
Hennepin County
City of Hutchinson
City of Minneapolis
Minneapolis Parks
Mounds View Public Schools
City of St. Louis Park
City of St. Paul
City of Duluth
Hutchinson example
1970s landfill. Wastewater plant was city’s biggest energy user.
400kw array
All behind the meter
$2 million from Renewable Development Fund
Brownfield to brightfield
Metropolitan Airports Commission
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Third-Party Solar & Direct Purchase
Third Party Advantages
No Upfront Costs/Take Advantage of Tax Credits
No Maintenance Costs
Predictable Cost of Electricity
PPA (No Power Created? No $)
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Third Party Challenges
Long Term Contract w/Complex Terms
Purchase Price Uncertainty
Direct Purchase Advantages
Ability to Use Cheap Public Debt
Full Control Over Project
Typical Project Management: Design, Bid, Build
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Direct Purchase Challenges
Finding the $$$$
Project Management & Ongoing Maintenance
No Tax Credits or Accelerated Depreciation
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Who’s Doing Third-Party Solar?
Annandale Public Schools
Becker High School
City of Brooklyn Park
Burnsville-Eagan-Savage School District
City of Champlin
Chippewa Middle School in North Oaks
City of Crystal
Chisago Lakes School District
Chisago Primary School
City of Cottage Grove
City of Columbia Heights
Farmington Schools
Forest Lake Public Schools
City of Falcon Heights
City of Golden Valley
Hopkins High School
Holdingford Public Schools
City of Inver Grove Heights
Lester Prairie Water Treatment Center
City of Lindstrom
City of La Crescent
City of Minneapolis
Minneapolis Public Schools
City of Maplewood
City of Newport
City of Oakdale
City of Red Wing
City of Richfield
City of Roseville
Rockford Area Schools
City of Rogers
City of St. Cloud
St. Cloud School District
City of Scandia
City of Shoreview
City of St. Paul
Waconia Public Schools
West St. Paul-Mendota Heights-Eagan Schools
City of Woodbury
Each one of these districts may have multiple host spots
Solar lease….then last 2 years more ppa’s.
Several 40kw – FH, Oakdale, Maplewood, Woodbury
Shoreview – 123kw
St. Cloud - 240kw at WWTP
Edison High School – 485kw is being built now
Farmington Public School – 715kw
Brooklyn Park – 1.5 Megawatt
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If you would please explain the difference between ARR and Value of Solar (VOS) rates. In talking to 4 different solar subscription providers, the ARR rates are dwindling and we are
quickly losing out on obtaining the best rates. I think at this point, we would be looking at proposals that would have a combination of ARR and VOS.
I was hoping you would address the perception of risk that Councilmembers have had in the past with the ARR rates. They believe there is a huge risk that locking into ARR rates are going
to put the City in jeopardy of paying more for a solar subscription then a regular Xcel energy rate. If you would please take several minutes to explain electric utility rate trends
over the last 30+ years and highlight how the likelihood that an ARR with a 1 escalator would dip beneath the regular rate in the long term is remote. That is the issue that killed
it last time. They just didn't understand the economics behind it and the staff didn't take the time to figure it out themselves.
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