Home › Utilities › Michigan › Tri-County Electric Cooperative (MI)

Electric cooperative

Tri-County Electric Cooperative (MI) interconnection application

Tri-County Electric Cooperative (MI) is an electric cooperative serving 23,136 residential customers in Michigan (EIA-861, 2025). Gridpol files Tri-County Electric Cooperative (MI) 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

Michigan’s interconnection rule (Mich. Admin. Code R 460.901a - R 460.1016 (MIXDG: Interconnection and Distributed Generation Standards)) applies to Tri-County Electric Cooperative (MI). Levels, timelines and documents below come from that rule; Tri-County Electric Cooperative (MI)’s own form and portal are confirmed on the first project.

Tri-County Electric Cooperative (MI) at a glance

Utility

Tri-County Electric Coop (MI)

Type

Electric cooperative

EIA utility ID

19396

Residential customers

23,136 (EIA-861, 2025)

Net-metered residential customers

194 (EIA-861, 2025)

Service territory

13 counties in Michigan

Documents Tri-County Electric Cooperative (MI) asks for

  • Interconnection application formRequired by the state rule Gridpol prepares this.
  • Single-line diagram (one-line)Required by the state rule Gridpol prepares this.
  • Site plan / site layoutRequired by the state rule Gridpol prepares this.
  • Interconnection agreementRequired by the state rule
  • Other utility-specific documentRequired by the state rule

Documents required by the Michigan rule. Tri-County Electric Cooperative (MI) may ask for more on its own form; we confirm on the first project.

Michigan interconnection rule

Commission

Michigan Public Service Commission

Interconnection rule

Mich. Admin. Code R 460.901a - R 460.1016 (MIXDG: Interconnection and Distributed Generation Standards) – Michigan Interconnection and Distributed Generation Standards · source

Applies to

Rate-regulated electric utilities (IOUs and rate-regulated cooperatives), member-regulated cooperatives (for R 460.901a-460.992), and alternative electric suppliers; not municipal utilities

Application form

Utility-specific interconnection application/procedures filed with MPSC per rule (online application allowed); Commission-approved standard Level 1-3 interconnection agreement (Case U-21543)

Timelines

Acknowledge receipt by end of 3rd business day; completeness determination within 10 business days; applicant 60 business days to cure (2 submissions), utility 10 BD per resubmission (R 460.936). Fast track initial review 10 BD (Levels 1-2) / 20 BD (Levels 3-5) (R 460.946). Facilities study 80 BD (R 460.962). DG-program customers must complete installation within 6 months of complete application (R 460.1006).

Fees

Pre-application report <=$300; non-export and fast track $100 + $1/kWac certified or $100 + $2/kWac non-certified; supplemental review <=$1,000; study scoping <=$300; SIS <=$10,000; facilities study <=$15,000 (R 460.926). DG program application fee <=$50 (R 460.1006).

Insurance

Level 1 and 2: utility may not require additional liability insurance or being named additional insured. Minimum general liability: Level 3 $1,000,000; Level 4 $2,000,000; Level 5 $3,000,000 (R 460.986).

External disconnect

Not found in reviewed rule sections; per utility interconnection procedures.

Export compensation

Net billing – MCL 460.1173 et seq. (Distributed Generation Program); R 460.1001-460.1016
DG program (inflow/outflow billing) replaced legacy net metering; outflow credited at a rate below full retail set per utility. Category sizes/caps per statute; detail not verified here.

Not bound by the rule

Member-regulated cooperatives are covered by the interconnection rules (R 460.901a(v)). Municipal utilities are not covered and use their own policies.

Other utilities in Michigan

All Michigan 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.

Get started – $500/month unlimited