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Investor-owned utilityNorthwestern Wisconsin Electric Co (NWE) interconnection application
Northwestern Wisconsin Electric Co (NWE) is an investor-owned utility serving 13,050 residential customers in Minnesota, Wisconsin (EIA-861, 2025). Applications: PDF + email (PSC Form 6031 + supplements + Form 6029/6030 submitted by installing contractor to NWE (contact form / DG contact)). Gridpol files Northwestern Wisconsin Electric Co (NWE) interconnection applications for licensed installers – solar, storage and EV chargers – with single-line diagram and site plan, unlimited for $500 a month.
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Process verified from Northwestern Wisconsin Electric Co (NWE)’s official sources (see below). Confirmed from nweco.com solar page, NWE tariffs and PSC forms. Open: PSC 119 review timelines (docs.legis.wisconsin.gov unreachable); MN service territory process not documented online.
Northwestern Wisconsin Electric Co (NWE) at a glance
Northwestern Wisconsin Elec Co
TypeInvestor-owned utility
EIA utility ID13815
Residential customers13,050 (EIA-861, 2025)
Net-metered residential customers97 (EIA-861, 2025)
Service territory1 county in Minnesota, 2 counties in Wisconsin
How to applyPDF + email – PSC Form 6031 + supplements + Form 6029/6030 submitted by installing contractor to NWE (contact form / DG contact) · official link
Who submitsNWE asks the customer's installing contractor to submit the Standard DG Application (Form 6031), fee and DG Interconnection Agreement; NWE notifies the contractor when PSC 119 requirements are met. Applicant on Form 6031 is the legally responsible person (owner/builder); designer/engineer also signs. PSC DG contact: John J. Richards, johnrichards@nweco.com, 715-463-1963.
Export compensationNet billing – Pgs-1 Parallel Generation (20 kW or less) - Net Energy Billing; Pgs-2 Customer-Owned Generation (>20 kW)
Monthly netting; net excess credited at avoided cost (Net Generation Rate $0.0678/kWh eff. 12/5/2025). Systems before 4/19/2019 credited at retail until 4/8/2029. Credit >$50 refunded on request.
Form 6029: utility testing completed within 10 working days after applicant notifies installation complete; revised applications approved/rejected within 20 working days. PSC 119 application review timelines not extracted (code site unreachable).
Documents Northwestern Wisconsin Electric Co (NWE) asks for
- Interconnection application formPSC Form 6031 Wisconsin Standard DG Application (eff. 5/1/2024) Gridpol prepares this.
- Other utility-specific documentTechnology supplement: Solar Photovoltaic Supplement (+ manufacturer data sheets); Energy Storage Supplement if battery
- Single-line diagram (one-line)One-line diagram incl. disconnect, POI, meters, protection. NWE will not approve line-side taps from metering equipment or main breaker Gridpol prepares this.
- Site plan / site layoutMajor equipment, service entrance, meters, DG and disconnect location, street address Gridpol prepares this.
- Proof of insuranceProof of insurance: Cat 1 min $300,000; Cat 2+ name utility as additional insured; certificate with 30-day cancellation notice naming NWE as additional insured before agreement execution
- UL 1741 / IEEE 1547 certificationProof of equipment certification (e.g. UL 1741) or PSC 119.27 compliance
- Interconnection agreementPSC Form 6029 (≤20 kW) or 6030 (>20 kW-15 MW)
- Final inspection sign-offWiring Affidavit signed by WI licensed master electrician (and certified inspector if municipality requires); from 1/1/2027 inspection by certified electrical inspector required before commissioning (SPS 316)
- Other utility-specific document (when applicable)W-9 form (listed on NWE solar page, for buyback payments)
How the Northwestern Wisconsin Electric Co (NWE) process runs
- Review PSC 119; contact NWE (installing contractor) for forms
- Contractor submits Form 6031 + PV/storage supplements, one-line, site plan, proof of insurance, certification and fee
- NWE reviews per PSC 119 and notifies contractor when requirements are met; all fees paid before commissioning is scheduled
- Sign Form 6029/6030 interconnection agreement; install; submit wiring affidavit (inspection by certified inspector from 1/1/2027)
- Notify NWE installation complete; NWE commissioning test (within 10 working days) and net meter setup
Fees
| Fee | Applies to | Note |
|---|---|---|
| $150 (1-8 kW) / $300 (9-20 kW) + $150 commissioning | Category 1 ≤20 kW | PSC 119 Table 119.08-1; engineering/study cost-based |
| $300 + $10/kW + $250 commissioning | Category 2 >20-200 kW | PSC 119 Table 119.08-1 |
| $2,000 + $2/kW + $1,000 commissioning | Category 3 >200 kW-1 MW | PSC 119 Table 119.08-1 |
| $4,000 + $0.50/kW + $2,500 commissioning | Category 4 >1-15 MW | PSC 119 Table 119.08-1 |
Utility fees are paid by the installer or customer; they are not part of the Gridpol plan.
Size levels and limits
| Level | Up to | Note |
|---|---|---|
| Category 1 | 20 kW | PSC 119, export capacity |
| Category 2 | 200 kW | |
| Category 3 | 1000 kW | |
| Category 4 | 15000 kW | |
| Net metering cap | 20 kW |
Net energy billing (Pgs-1) for systems 20 kW or less; >20 kW under Pgs-2 avoided cost.
Storage, EV and stamps
Battery storage
PSC Energy Storage Supplement required (operating modes, export yes/no, grid charging yes/no, DC/AC coupled, transfer switch location). No NWE-specific storage rules found.
Common issues the utility lists
- Line-side taps from metering equipment or main breaker on one-line diagram not approved
Gridpol’s pre-submission check covers these before we file.
Sources
- NWE New Solar/Wind Construction: https://www.nweco.com/new-solarwind-construction.html (retrieved 2026-11-13)
- NWE Generation Tariffs Pgs-1 / Pgs-2 (PSC rate file): https://www.nweco.com/uploads/8/6/9/0/8690833/generation_tariffs__1_.pdf (retrieved 2026-11-13)
- NWE Parallel Generation Condensed Rate Schedule (eff. 12/5/2025): https://www.nweco.com/uploads/8/6/9/0/8690833/solar_wind_rate_schedule_12.5.25.pdf (retrieved 2026-11-13)
- NWE Solar Insurance Requirement: https://www.nweco.com/uploads/8/6/9/0/8690833/solar_insurance_requirement.pdf (retrieved 2026-11-13)
- NWE Wiring Affidavit: https://www.nweco.com/uploads/8/6/9/0/8690833/wiring_affidavit_2.13.25_fillable.pdf (retrieved 2026-11-13)
- PSC Wisconsin Customer-Owned Generation: https://psc.wi.gov/Pages/ForConsumers/MoreResources/CustomerOwnedGeneration.aspx (retrieved 2026-11-13)
- PSC Form 6031 (fees, insurance, attachments): https://psc.wi.gov/Documents/Energy/DG_Form6031WisconsinStandardDistributedGenerationApplication.pdf (retrieved 2026-11-13)
- PSC Form 6029 DG Interconnection Agreement ≤20 kW: https://psc.wi.gov/Documents/Energy/DG_Form6029DG20orLessAgreement.pdf (retrieved 2026-11-13)
- PSC DG Points of Contact (updated 2/27/2026): https://psc.wi.gov/Documents/Energy/DG_PointsofContact.pdf (retrieved 2026-11-13)
Other utilities in Wisconsin
- We Energies1,056,086
- Alliant Energy (Wisconsin)440,746
- Wisconsin Public Service (WPS)415,643
- Xcel Energy (Wisconsin/Michigan)222,746
- MGE148,482
- Adams-Columbia Electric Cooperative36,159
- Polk-Burnett Electric Cooperative20,584
- Barron Electric Cooperative19,395
- Riverland Energy Cooperative19,120
- Oakdale Electric Cooperative17,139
$500 / month
Unlimited interconnection applications. 12-month agreement, signed online. The agreement starts the day you sign; first invoice right away, then monthly.
- Unlimited interconnection applications
- Single-line diagram and site plan for every application
- Pre-submission check against the utility’s requirements
- Homeowner e-signature link for the authorization
- Filing in your utility portal accounts or by the utility’s method
- Utility questions, corrections and resubmissions
- Follow-up through approval, inspection and PTO
- Customer list, exports, API and webhooks
Applications are typically submitted within 2 business days after complete documents. Utility review times are set by each utility.