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South Dakota

South Dakota

Incentives/Policies for Renewables & Efficiency

Printable Version
Interconnection Standards   

Last DSIRE Review: 04/23/2013
Program Overview:
State: South Dakota
Incentive Type: Interconnection
Eligible Renewable/Other Technologies: Solar Thermal Electric, Photovoltaics, Landfill Gas, Wind, Biomass, Hydroelectric, Geothermal Electric, Fuel Cells, CHP/Cogeneration, Anaerobic Digestion, Small Hydroelectric, Fuel Cells using Renewable Fuels, Microturbines, Other Distributed Generation Technologies
Applicable Sectors: Commercial, Industrial, Residential, Nonprofit, Schools, Local Government, State Government, Tribal Government, Fed. Government, Agricultural, Institutional
Applicable Utilities:Investor-owned utilities
System Capacity Limit:10 MW
Standard Agreement:Yes
Insurance Requirements:Vary by system size and/or type; levels established by PUC
External Disconnect Switch:Utility's discretion
Net Metering Required:No
Authority 1:
Date Enacted:
S.D. Administrative Code ยง 20:10:36
5/28/2009
Summary:

South Dakota’s interconnection standards for distributed generation, adopted by the state Public Utilities Commission (PUC) in May 2009, apply to customers of investor-owned utilities.* The rules provide for four levels of interconnection for systems up to 10 megawatts (MW) in capacity:

  • Tier 1 applies to inverter-based systems up to 10 kilowatts (kW) in capacity that use lab-tested equipment.
  • Tier 2 applies to systems up to 2 MW in capacity that use lab-tested equipment.
  • Tier 3 applies to systems up to 2 MW in capacity that do not export electricity.
  • Tier 4 applies to systems up to 10 MW in capacity that do not meet the requirements of Tier 1, Tier 2 or Tier 3.

Technical screens have been established for each level, and the IEEE 1547 technical standard is used for all interconnections. Reasonable timeframes for application and approval are set forth in the rules. System owners are generally responsible for all interconnection expenses, including interconnection equipment, utility system upgrades and adverse system impacts. Utilities are authorized to require the use of an external disconnect switch. Limited interconnection to area networks is permitted.

General liability insurance is required, with levels that vary by tier. (For Tier 1 systems, only “proof of adequate homeowners, general liability or commercial liability insurance sufficient to insure against all reasonably foreseeable direct liabilities given the size of the small generator facility” is necessary.) For all systems other than residential generators up to 10 kW in capacity, the customer must include the utility as an “additional insured.” The PUC staff may assist with dispute resolution when appropriate.


* The PUC’s rules do not apply to customers of electric cooperatives or municipal utilities.


 
Contact:
  Brian Rounds
S.D. Public Utilities Commission
Capitol Building, 1st Floor
500 East Capitol Avenue
Pierre, SD 57501
Phone: (605) 773-3201
Fax: (866) 757-6031
E-Mail: brian.rounds@state.sd.us
Web Site: http://puc.sd.gov
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Disclaimer: The information presented on the DSIRE web site provides an unofficial overview of financial incentives and other policies. It does not constitute professional tax advice or other professional financial guidance, and it should not be used as the only source of information when making purchasing decisions, investment decisions or tax decisions, or when executing other binding agreements. Please refer to the individual contact provided below each summary to verify that a specific financial incentive or other policy applies to your project.

While the DSIRE staff strives to provide the best information possible, the DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. make no representations or warranties, either express or implied, concerning the accuracy, completeness, reliability or suitability of the information. The DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. disclaim all liability of any kind arising out of your use or misuse of the information contained or referenced on DSIRE Web pages.

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