Sun Prairie Utilities
Sun Prairie Utilities is a not-for-profit, municipally owned electric and water utility serving over 13,500 customers in Sun Prairie, Wisconsin. Founded in 1910, it is co-owned by the community, governed by a Utility Commission, and procures power through WPPI Energy.
- Company typePrivate
- Founded1910
- HeadquartersSun Prairie, United States
- Headcount1–10
- GTM typeB2B and B2C
- OfferingServices
What Sun Prairie Utilities does
Sun Prairie Utilities (SPU) is a not-for-profit, municipally owned public power and water utility serving residents and businesses within the city limits of Sun Prairie, Wisconsin. Established in 1910 through the community purchase of Charles B. Hayden's electric plant for $6,800, SPU now provides electric and water service to more than 13,500 customers across a population of approximately 36,100, governed by a seven-member Utility Commission appointed by the Mayor and confirmed by the City Council. The utility is a co-owner of WPPI Energy, a not-for-profit regional power company based in Sun Prairie, which supplies cost-competitive wholesale electricity (including nuclear energy from the Point Beach Nuclear Plant under long-term agreement) and enables participation in shared services and award programs.
SPU's core offerings are commodity electric and water delivery, billed monthly under regulated rates approved by the Public Service Commission of Wisconsin. Core technical infrastructure includes a system-wide Advanced Metering Infrastructure (AMI) deployment completed in 2025, supporting remote meter reading, unified billing, and improved outage management, alongside water operations meeting all Federal and State drinking-water standards. Customer-facing modules include the MyAccount web portal, AutoPay, Budget Billing, RoundUp community donations, WHEAP energy assistance, and a portfolio of rebate programs covering EV chargers, Energy Star appliances, smart thermostats, and home energy assessments. A new SPU-branded mobile app launched in 2025, and the utility relocated in December 2025 to an 83,000-square-foot operations facility at 510 Linnerud Drive designed for 30-50 years of growth and pursuing LEED Gold certification, with infrastructure including geothermal systems and 435kW of rooftop solar.
The business model is rate-regulated, subscription-recurring utility revenue with no profit motive; revenue supports operations, infrastructure renewal, and community programs at the lowest feasible cost. GTM is direct-to-consumer within the exclusive municipal service territory, supported by community partnerships (Sun Prairie Chamber of Commerce, School District, Colonial Club), local media, and a presence across Facebook, X, YouTube, and Instagram. The utility has earned multiple safety and customer satisfaction recognitions in 2025-2026 from MEUW, APPA, and WPPI Energy, and was designated a 2023 Climate Champion for the new facility's sustainability design.
Sun Prairie Utilities firmographics
Firmographics- Name
- Sun Prairie Utilities
- Legal name
- Sun Prairie Utilities
- Website
- https://sunprairieutilities.com
- Company type
- Private
- Founded year
- 1910
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Sun Prairie Utilities is a not-for-profit, municipally owned electric and water utility serving over 13,500 customers in Sun Prairie, Wisconsin. Founded in 1910, it is co-owned by the community, governed by a Utility Commission, and procures power through WPPI Energy.
- Ownership category
- akta.pro rank
Sun Prairie Utilities industry classification
Industry- Product category
- Municipal Electric and Water Utility
- NAICS
- Electric Power Generation, Transmission and Distribution (2211), Water, Sewage and Other Systems (2213), Utilities (22)
- SIC
- Water Supply (4941), Cogeneration Services & Small Power Producers (4991)
- akta.pro primary industry
- Green Tariffs & Utility Renewable Supply Programs (EUAGADAJ)
- akta.pro secondary industries
- C&I Renewable Supply & Green Tariffs (Bundled RE, Sleeves, Utility Green Tariffs) (EUAGACAE), Community Solar Development & Subscription Management (EUAMAJAA), Solar Financing, Leasing & Ownership Platforms (Tax Equity, PPA, Securitization) (EUAMABAJ)
Keywords
Where Sun Prairie Utilities is headquartered
LocationHeadquarters
- HQ city
- Sun Prairie
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Sun Prairie Utilities business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
- Cost components
- Infrastructure, Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Others
Revenue model
- Electric Service: Municipal electric utility providing safe, reliable electricity to residential and commercial customers within Sun Prairie city limits. Revenue generated through electric rates approved by the Public Service Commission of Wisconsin.
- Water Service: Municipal water utility providing drinking water meeting all Federal and State standards. Revenue generated through water rates approved by the Public Service Commission of Wisconsin.
- Energy Efficiency Programs and Rebates: Various rebate programs for residential and commercial customers including EV charger rebates, Energy Star appliance rebates, smart thermostat rebates, and home energy assessment incentives.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Budget Billing Program |
| Other | One time/ perpetual license | Residential EV Charger Rebate |
| Other | One time/ perpetual license | Commercial EV Charger Rebate |
| Other | One time/ perpetual license | Energy Star Appliance Rebates |
| Other | One time/ perpetual license | Smart Thermostat Rebate |
| Other | One time/ perpetual license | Home Energy Assessment Rebate |
Go-to-market motion1 record
Distribution channels5 records
Marketing channels5 records
Sun Prairie Utilities product offering
Product offeringCore offering
Sun Prairie Utilities is a community-owned municipal utility that distributes electricity and supplies water to residential, commercial, and industrial customers in the City of Sun Prairie, Wisconsin. Beyond core delivery, it offers an online customer account portal (MyAccount/SmartHub), budget billing, energy-efficiency rebates (Smart Thermostat, ENERGY STAR, EV chargers), renewable-energy opt-in (Choose Renewable), solar interconnection support, and commercial demand-response programs such as Interruptible Load Credits and Market-Based Pricing.
Product overview
Sun Prairie Utilities is a not-for-profit, locally-owned municipal utility offering electric and water services to residents and businesses in Sun Prairie, Wisconsin. The company operates as a co-owner of WPPI Energy for electricity procurement. Its core products include electric and water utility services, supplemented by customer-facing modules including bill payment systems (MyAccount portal, Budget Billing, AutoPay), energy assistance programs (WHEAP, RoundUp), and various rebate programs (EV charger, Energy Star appliances, smart thermostat, home energy assessment). The company also offers sustainability-focused programs including Choose Renewable, Going Solar, and Electric Vehicles support. A new SPU-branded mobile app was launched in 2025 alongside the company's new 510 Linnerud Drive operations facility.
Differentiator
Problem solved
Functional benefit
Products and services
- Electric Service Retail distribution of electricity to residential, commercial, and industrial customers in Sun Prairie, Wisconsin, including metering, billing, outage response, and customer service support.
- Water Service Potable water supply and distribution service for residential and commercial customers in Sun Prairie, including metering, billing, and customer support.
- MyAccount (SmartHub) Customer Portal Online account management portal that allows residential and commercial customers to view bills, pay invoices, monitor energy and water usage, set up autopay, manage notifications, and report service issues.
- Budget Billing Annualized billing program that spreads a customer's projected yearly electric charges evenly across 12 monthly installments to reduce seasonal bill volatility for residential and small commercial customers.
- Choose Renewable Voluntary program that lets residential and commercial customers elect to support renewable energy generation for an additional contribution added to their monthly utility bill.
- Going Solar (Interconnection) Customer education and interconnection service that guides residential and commercial customers through installing rooftop solar PV, including net-metering setup and grid-interconnection approval.
- Energy Star Appliance Rebate Cash rebate program for residential customers who purchase qualifying ENERGY STAR certified appliances such as refrigerators, washers, and dishwashers.
- Smart Thermostat Rebate
Quantifiable outcome
- Drinking water meets all Federal and State standards for health and safety
- +2 more outcomes
Companies that use Sun Prairie Utilities
Customer profileNamed customers5 records
Segments3 records
Ideal customer profiles2 records
Sun Prairie Utilities technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
Sun Prairie Utilities partnerships and signals
Strategic signalPartnerships
13 partnerships are on record, tiered core and minor.
- WPPI EnergycoreWPPI Energy is a not-for-profit, Sun Prairie-based power company co-owned by Sun Prairie Utilities. SPU purchases cost-competitive electricity for the community through this partnership and takes advantage of latest technologies to better serve customers.
- Focus on EnergycoreWisconsin Focus on Energy program partner providing energy efficiency incentives, rebates, and programs to Sun Prairie Utilities customers including home energy assessments, smart thermostats, and whole home improvements.
- Municipal Electric Utilities of Wisconsin (MEUW)coreIndustry association representing Wisconsin municipal electric utilities. SPU receives safety awards and recognition through MEUW and participates in annual conferences.
- American Public Power AssociationcoreNational association representing public power utilities. SPU participates in APPA safety awards and customer satisfaction recognition programs.
- Public Service Commission of WisconsinState regulatory agency that approves SPU's electric and water rate applications and construction authorizations.
- Energy Services of Dane CountyminorLocal Energy Assistance Program administrator that assists income-qualified households with WHEAP applications and determines eligibility for energy bill assistance.
- City of Sun PrairiecoreMunicipal government partner. SPU is a municipally-owned utility with commissioners appointed by the Mayor and approved by City Council. Joint fiber optic network and community initiatives.
- Sun Prairie Chamber of CommerceminorLocal business organization partner for community engagement and economic development initiatives.
- Sun Prairie Area School DistrictminorLocal school district partner in RoundUp program supporting Food for Thought and Hunger Heroes programs for students.
- Colonial Club Senior Activity CenterminorSenior services nonprofit recipient of SPU wellness kit donations and RoundUp program beneficiary.
- American Water Works AssociationcoreNational association for water utilities providing best practices, standards, and resources for SPU water operations.
- Wisconsin Rural Water AssociationcoreState association supporting rural water utilities with training, technical assistance, and advocacy for Wisconsin water systems.
- Point Beach Nuclear PlantNuclear energy provider through long-term agreement allowing Sun Prairie to continue receiving nuclear energy for community power supply.
Scale indicators6 records
Recent moves8 records
Expansion highlights6 records
Sun Prairie Utilities competitors and assessment
Company assessmentBroad incumbents
- Alliant Energy: Wisconsin-based investor-owned utility serving electric and natural gas customers across Wisconsin, Iowa, and Minnesota. Broader incumbent with overlapping service area in southern Wisconsin and a much larger rate base.
- WE Energies (WEC Energy Group): Wisconsin-based investor-owned utility serving electric and natural gas customers across Wisconsin and parts of Michigan and Minnesota. Larger incumbent with overlapping regulatory environment and renewable program offerings.
Direct peers
- River Falls Municipal Utilities: Wisconsin municipal electric and water utility serving River Falls. Comparable small-city public power model with both electric and water distribution under a single commission.
- Madison Gas and Electric (MGE Energy): Wisconsin investor-owned utility serving Madison and surrounding communities with electric and natural gas service. Closest direct geographic peer to SPU as a Wisconsin-regulated utility with a focus on clean energy and customer programs.
- Marshfield Utilities: Wisconsin municipal electric and water utility serving Marshfield. Comparable community-owned utility with a focus on reliability, customer programs, and renewable/energy efficiency offerings.
- Stoughton Utilities: Wisconsin municipal electric and water utility serving Stoughton, a Dane County neighbor of Sun Prairie. Highly comparable in size, service mix (electric + water), and public power model.
- WPPI Energy: Not-for-profit regional power company co-owned by SPU and other Wisconsin municipal utilities, headquartered in Sun Prairie. Joint action agency providing wholesale power, services, and resource planning to member municipal utilities including SPU.
- Waunakee Utilities: Wisconsin municipal electric and water utility serving Waunakee, a fast-growing Dane County community adjacent to Sun Prairie. Comparable in scale, customer mix, and reliance on WPPI Energy for wholesale power.
- Kaukauna Utilities: Wisconsin municipal electric and water utility serving Kaukauna. Comparable public power utility with a similar combination of electric distribution, water service, and customer-side efficiency programs.
Others
- American Municipal Power (AMP): Not-for-profit joint action agency serving municipal electric utilities across multiple states, providing wholesale power, generation, and energy services. Comparable to WPPI Energy in role and structure, illustrating an ecosystem peer for SPU's wholesale/supply model.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Sun Prairie Utilities social profiles
Digital presenceSun Prairie Utilities compliance and trust
Trust signalCompliance2 records
Sun Prairie Utilities financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sun Prairie Utilities leadership team
Management profileNumber of profiles
Profiles11 records
Sun Prairie Utilities funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sun Prairie Utilities M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Sun Prairie Utilities
What does Sun Prairie Utilities do?
Sun Prairie Utilities is a community-owned municipal utility that distributes electricity and supplies water to residential, commercial, and industrial customers in the City of Sun Prairie, Wisconsin. Beyond core delivery, it offers an online customer account portal (MyAccount/SmartHub), budget billing, energy-efficiency rebates (Smart Thermostat, ENERGY STAR, EV chargers), renewable-energy opt-in (Choose Renewable), solar interconnection support, and commercial demand-response programs such as Interruptible Load Credits and Market-Based Pricing.
Is Sun Prairie Utilities a public or private company?
Sun Prairie Utilities is a private company. It is classified as state government owned and is currently operating.
When was Sun Prairie Utilities founded?
Sun Prairie Utilities was founded in 1910. It employs 1 to 10 people.
Where is Sun Prairie Utilities based?
Sun Prairie Utilities is headquartered in Sun Prairie, United States, in the North America region.
How does Sun Prairie Utilities make money?
Three revenue lines are on record. Electric Service is the primary driver. The others are water Service and energy Efficiency Programs and Rebates.
Who are Sun Prairie Utilities's main competitors?
Broad incumbents on record are Alliant Energy and WE Energies (WEC Energy Group). Direct peers are River Falls Municipal Utilities, Madison Gas and Electric (MGE Energy), Marshfield Utilities, Stoughton Utilities, WPPI Energy, Waunakee Utilities and Kaukauna Utilities. American Municipal Power (AMP) is listed as an others.
Does Sun Prairie Utilities have an API?
No public API is recorded for Sun Prairie Utilities.
What industry is Sun Prairie Utilities in?
Sun Prairie Utilities's product category is Municipal Electric and Water Utility. Its primary akta.pro industry code is EUAGADAJ, Green Tariffs & Utility Renewable Supply Programs, with a secondary code of EUAGACAE, C&I Renewable Supply & Green Tariffs (Bundled RE, Sleeves, Utility Green Tariffs). Its NAICS code is 2211 and its SIC code is 4941.