Alliant Energy (Wisconsin Power and Light) - Advanced Renewables Tariff (Wisconsin)

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Last modified on February 12, 2015.

Financial Incentive Program

Place Wisconsin

Name Alliant Energy (Wisconsin Power and Light) - Advanced Renewables Tariff
Incentive Type Performance-Based Incentive
Applicable Sector Commercial, Industrial, Residential, Nonprofit, Schools, Local Government, State Government, Fed. Government, Agricultural, Institutional
Eligible Technologies Photovoltaics, Landfill Gas, Wind, Biomass, Anaerobic Digestion
Active Incentive No

Implementing Sector Utility
Energy Category Renewable Energy Incentive Programs
Amount Solar: 0.25/kWh

Non-solar: 0.12/kWh on-peak, 0.0735/kWh off-peak

Start Date 2009-01-01

Maximum Incentive None specified, but system size limited by technology

Terms Contract has term of 10 years; solar customers must enroll in Second Nature green pricing program
Program Administrator Wisconsin Power and Light
Date added to DSIRE 2009-03-24
Last DSIRE Review 2010-09-29

References DSIRE[1]


Note: The solar portion of the Wisconsin Power and Light Advanced Renewables Tariff is fully subscribed (program cap met) for all technologies and is closed to new participants.

Wisconsin Power and Light (WPL), a subsidiary of Alliant Energy, offers its retail electric customers a production incentive for electricity production from renewable energy sources as defined by Wis. Stat. § 196.378(1)(h). This definition includes solar, wind and biomass/biogas technologies. The production incentive is only available for facilities placed in service on or after January 1, 2007. Incentives and program limitations vary by technology as follows:

  • Solar: $0.25/kilowatt-hour (kWh) for systems of 1 kW - 20 kW; program cap of 683 kW
  • Biomass/biogas: $0.12/kWh on-peak and $0.0735/kWh off-peak for systems of 20 kW - 2 MW; non-solar program cap of 0.5% prior year retail electricity sales
  • Wind: $0.12/kWh on-peak and $0.0735/kWh off-peak for systems of 20 kW - 1 MW; non-solar program cap of 0.5% prior year retail electricity sales
  • Other: $0.12/kWh on-peak and $0.0735/kWh off-peak for systems of 20 kW - 1 MW; non-solar program cap of 0.5% prior year retail electricity sales

The on-peak period is defined as weekdays from 8 AM to 10 PM while the off-peak period consists of all other time periods and several holidays (e.g., Christmas, New Year's Day, etc.) designated as off-peak by the utility. Participants will receive a monthly credit on their bill according to the schedule described above and will receive a check from the utility whenever their net monthly bill credit exceeds $100.

Solar participants in this program are required to enroll as purchasers in the Second Nature green pricing program, which charges a premium of between 0.5 and 2.0 cents/kWh depending on the level of participation. Residential customers must enroll at a minimum participation level of 25% of their electricity consumption (premium of 0.5 cents/kWh) while non-residential customers must enroll at a minimum of $10 per month. It is important to note that this is not a net metering program nor is it compatible with net metering. The customer purchases 100% of their electricity from the utility at the retail rate (plus their Second Nature participation) while the utility purchases 100% of the output of the renewable energy system through a 10-year, fixed price contract. Customers with systems of 200 kW or less must pay a fixed charge of $0.4176 per day ($152 per year), while customers with larger systems must pay a fixed charge of $0.8352 per day ($305 per year) in order to participate in the program.

This configuration requires the installation of a second meter and the customer is responsible for furnishing and installing all equipment necessary to accommodate the second meter. Facilities must adhere to all applicable local, state, and national electric codes, rules and regulations, including the State of Wisconsin's Standard Interconnection Requirements. All renewable energy credits (RECs) and other environmental attributes produced by the system during the 10-year term of the contract will belong to the utility. Enrollment will be offered on a first-come, first-served basis until the program caps are met.

Authorities (Please contact the if there are any file problems.)

Authority 1: Advanced Renewable Distributed Generation Tariff
Date Effective 2009-01-01

Incentive Contact

Contact Name Customer Assistance - Second Nature Program
Department Wisconsin Power and Light

Address Alliant Energy, 8th Floor
Address 2 P.O. Box 351
Place Cedar Rapids, Iowa
Zip/Postal Code 52406-0351
Phone (800) 972-5325


  • Incentive and policy data are reviewed and approved by the N.C. Solar Center's DSIRE project staff.[1]


  1. 1.0 1.1  "Database of State Incentives for Renewables and Efficiency (DSIRE)"