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Town of Hardwick interconnection application

Town of Hardwick is a municipal utility serving 4,888 customers in Vermont (EIA-861, 2025). Gridpol files Town of Hardwick 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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Vermont’s interconnection rule (Vermont PUC Rule 5.500 (5.501-5.522), Interconnection Procedures for Proposed Electric Generation Resources and Energy Storage Devices) applies to Town of Hardwick. Levels, timelines and documents below come from that rule; Town of Hardwick’s own form and portal are confirmed on the first project.

Town of Hardwick at a glance

Utility

Town of Hardwick

Type

Municipal utility

EIA utility ID

8104

Customers

4,888 (EIA-861, 2025, short form: all customer classes)

Net-metered residential customers

none reported

Service territory

4 counties in Vermont

Documents Town of Hardwick 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.
  • Inverter spec sheetRequired by the state rule
  • UL 1741 / IEEE 1547 certificationRequired by the state rule
  • Interconnection agreementRequired by the state rule
  • Other utility-specific documentRequired by the state rule

Documents required by the Vermont rule. Town of Hardwick may ask for more on its own form; we confirm on the first project.

Vermont interconnection rule

Commission

Vermont Public Utility Commission (PUC)

Interconnection rule

Vermont PUC Rule 5.500 (5.501-5.522), Interconnection Procedures for Proposed Electric Generation Resources and Energy Storage Devices – Interconnection Procedures for Proposed Electric Generation Resources and Energy Storage Devices · source

Applies to

All proposed interconnections of Projects in Vermont not subject to ISO-NE interconnection rules (5.501), i.e., all Vermont distribution utilities (Green Mountain Power, municipal utilities, Vermont Electric Cooperative, Washington Electric Cooperative, etc.).

Application form

Statewide Commission Application Forms: 'Application for Interconnection of Distributed Energy Resources Not Greater Than 150 kW' and '... Greater Than 150 kW' (5.502(2),(4)).

Timelines

Incomplete-application notice within 7 days; for <= 500 kW the utility must notify interconnection issues by day 15 (export <= 15 kW) or day 31 (export 15-500 kW) after complete application (5.510). Projects passing preliminary screens must be approved in writing; projects < 150 kW may interconnect without an Interconnection Agreement unless operating restrictions are imposed; > 150 kW: executable agreement within 7 days after preliminary review. Optional pre-application report $300.

Fees

No application fee for nameplate <= 150 kW unless provided in an approved utility tariff; > 150 kW $600 (or tariff); pre-application report $300; feasibility study deposit lesser of 50% of estimate or $1,000.

Export compensation

Net billing – 30 V.S.A. § 8010; Vermont PUC Rule 5.100 (eff. Mar. 1, 2024)
Net-metering systems up to 500 kW; Category I <= 15 kW (non-hydro), Category II 15-150 kW, Categories III/IV up to 500 kW (preferred sites etc.). Registration (roof-mounted up to 500 kW, ground-mounted <= 15 kW) or CPG application. Excess generation monetized at the applicable blended residential rate plus/minus siting and REC adjustors (first 10 years for positive adjustors), updated in biennial proceedings (5.127-5.128). Applies to all Vermont electric companies.

Not bound by the rule

Bound: Rule 5.500 and Rule 5.100 apply statewide to all Vermont utilities including municipal utilities and cooperatives (PUC regulates all).

Other utilities in Vermont

All Vermont 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