We Energies interconnection application

We Energies is an investor-owned utility serving 1,056,086 residential customers in Wisconsin (EIA-861, 2025). Applications: PDF + email (We Energies Central Group (customer-owned generation)). Gridpol files We Energies interconnection applications for licensed installers – solar, storage and EV chargers – with single-line diagram and site plan, unlimited for $500 a month.

Get started Look up another ZIP

Process verified from We Energies’s official sources (see below). Category application fee amounts not stated on utility page; see PSC 119/Form 6031.

We Energies at a glance

Utility

Wisconsin Electric Power Co (WEC Energy Group)

Type

Investor-owned utility

EIA utility ID

20847

Residential customers

1,056,086 (EIA-861, 2025)

Net-metered residential customers

6,994 (EIA-861, 2025)

Service territory

28 counties in Wisconsin

How to apply

PDF + email – We Energies Central Group (customer-owned generation) · official link

Who submits

Customer of record notifies the Company and submits the Wisconsin Standard DG Application (PSC Form 6031); installer may prepare it. Submit by email co-non-design-central@we-energies.com, mail (We Energies Central Group, PO Box 2046, Milwaukee WI 53201) or fax. Questions: customergen@we-energies.com.

Export compensation

Net billing – CGS NM (net metered rate, <300 kW)
Monthly netting; excess credited at avoided energy cost ($0.03636/kWh flat from 1-1-2026)

Review time (official)

Completeness notice within 10 working days; engineering-review determination within 10 working days (PSC 119).

Documents We Energies asks for

Interconnection application formWisconsin Standard Distributed Generation Application Form 6031 (PSC) Gridpol prepares this.
Other utility-specific documentSupplement form: Solar PV Form, Energy Storage Form, Wind, Generator, Micro-grid interconnect device as applicable
Single-line diagram (one-line)Computer generated (no hand drawn), meets PSC 119.10; show max continuous output of each generator/ESS, existing vs new, backup generators, EV chargers incl. V2H; revision tracking Gridpol prepares this.
Site plan / site layoutComputer generated, meets PSC 119.12; locations of generation, ESS, disconnects, meter Gridpol prepares this.
Inverter spec sheetTechnical documents of generation equipment
Battery spec sheet (when applicable)ESS must be UL 9540
Photos (meter, main panel, equipment)Pictures of existing metering equipment, all sides, showing meter centerline height
Proof of insuranceProof of liability insurance per PSC 119 category
Other utility-specific documentWeatherproof onsite one-line posted near metering equipment
Interconnection agreementDG Interconnection Agreement + Surplus Energy Agreement signed after commissioning

How the We Energies process runs

Customer notifies We Energies
Submit Form 6031 + supplements, SLD, site plan, specs, meter photos, insurance, fee
Completeness review (10 working days); engineering review/study if required
Pay any upgrade costs
Install; AHJ inspection; disconnect left open until commissioning
Company commissioning (anti-islanding, reconnect 5 min test); as-built if changes
Sign Interconnection Agreement + Surplus Energy Agreement; written final acceptance = operate

Fees

Fee	Applies to	Note
per PSC 119 category	Application review fee	amount not stated on page
$300	Optional pre-application report	non-refundable
varies	Commissioning fee / engineering review	stated in notice

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
Category 2	200 kW
Category 3	1000 kW
Category 4	15000 kW
Net metering cap	300 kW

Total single-phase generation at a site ≤150 kW; telemetry ≥300 kW

Storage, EV and stamps

Battery storage

ESS is customer-owned generation and needs the Energy Storage supplement form; UL 9540; no approved means to make ESS non-exporting yet – submit export-limiting design with test data for review. Contact Company for backup-only ESS / V2H systems.

EV chargers

EV chargers (incl. vehicle-to-home) must be shown on the one-line; service changes require a separate service change/modification/rewire application.

Common issues the utility lists

Hand-drawn one-line or site plan not accepted
One-line not distinguishing existing vs new equipment or missing EV chargers/backup gen
Installed equipment differs from submitted documents (as-built required before operation)
Existing metering/service code violations must be resolved
Failed commissioning (islanding/reconnect test)

Gridpol’s pre-submission check covers these before we file.

Sources

We Energies/WPS Customer-Owned Generation Manual 04/13/2026: https://www.we-energies.com/services/pdf/cog-manual.pdf (retrieved 2026-11-13)
We Energies Systems 300 kW or less: https://www.we-energies.com/services/300kw-less-systems (retrieved 2026-11-13)
We Energies CGS NM tariff: https://www.we-energies.com/pdfs/etariffs/wisconsin/cgs-nm.pdf (retrieved 2026-11-13)
PSC Form 6031: https://psc.wi.gov/Documents/20240319_Form6031WisconsinStandardDistributedGenerationApplication.pdf (retrieved 2026-11-13)

Other utilities in Wisconsin

All Wisconsin utilities →

Gridpol Unlimited

$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

Get started

Applications are typically submitted within 2 business days after complete documents. Utility review times are set by each utility.