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Investor-owned utility

Fishers Island Utility Company interconnection application

Fishers Island Utility Company is an investor-owned utility serving 655 residential customers in New York (EIA-861, 2025). Gridpol files Fishers Island Utility Company 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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Partly researched from official sources. verify on first project: no official FIUC website, tariff or interconnection page found (fishersislandutility.com does not resolve; web search budget exhausted this run). NY SIR text does not list covered utilities and assumes an online portal (IOAP) that FIUC likely lacks; if SIR applies: <=50 kW no application fee, completeness/approval 10 business days, executed SIR contract, install, verification test, final acceptance. Confirm with FIUC / NY DPS: applicability of SIR and net metering (PSL 66-j), submission channel, forms, documents.

Fishers Island Utility Company at a glance

Utility

Fishers Island Utility Co Inc

Type

Investor-owned utility

EIA utility ID

6369

Residential customers

655 (EIA-861, 2025)

Net-metered residential customers

none reported

Service territory

1 county in New York

Documents Fishers Island Utility Company asks for

  • Interconnection application formFilled in by us from your project data in the utility’s portal or on its form. Gridpol prepares this.
  • Single-line diagram (one-line)Drawn by us from your equipment data: modules, strings, inverter, battery, disconnects, point of interconnection, meter. Gridpol prepares this.
  • Site plan / site layoutDrawn by us from your roof sketch or photos: array, inverter, battery, disconnect, meter and main panel locations. Gridpol prepares this.
  • PV module spec sheetManufacturer data sheet of the modules.
  • Inverter spec sheetManufacturer data sheet (string inverter, microinverter or hybrid inverter).
  • Customer signatureThe account holder signs the application or authorization. We send the signature link.
  • Recent electric billName, service address, account and meter number must match the application.
  • Final inspection sign-offApproved electrical inspection from the authority having jurisdiction after installation.

Typical documents for US utilities – not yet verified for Fishers Island Utility Company. We confirm Fishers Island Utility Company’s exact list on the first project.

Size levels and limits

LevelUp toNote

NY SIR (eff. 10/1/2026) covers DG/ESS <=5 MW AC; applicability to FIUC not confirmed.

Sources

New York interconnection rule

Commission

New York State Public Service Commission (Department of Public Service)

Interconnection rule

NYS Standardized Interconnection Requirements (SIR), Case 24-E-0621 and predecessors – New York State Standardized Interconnection Requirements and Application Process for New Distributed Generators and/or Energy Storage Systems 5 MW or Less Connected in Parallel with Utility Distribution Systems · source

Applies to

PSC-regulated electric utilities: Central Hudson, Con Edison, NYSEG, National Grid (Niagara Mohawk), Orange & Rockland, RG&E; DG/ESS up to 5 MW AC in parallel with distribution system

Application form

Statewide standard application package (Appendix F checklist) submitted electronically via utility Interconnection Online Application Portal (IOAP); NYS Standardized Interconnection Contract; property owner consent form (>50 kW); site control form

Timelines

<=50 kW: utility determines completeness/approval within 10 BD; applicant has 30 BD to supply missing info; acceptance includes executed contract; metering changes for net metered systems within 10 BD; verification test within 10 BD of notice (or applicant certifies within 5 BD if not witnessed); final acceptance letter within 5 BD. >50 kW: completeness 10 BD, CESIR 60 BD, etc.

Fees

No application fee <=50 kW; $750 pre-application report (credited); supplemental screening $2,500 nonrefundable up to $5,000 actual; CESIR and upgrades at cost.

Insurance

No general liability insurance may be required for facilities <=300 kW AC (PSC recommends adequate insurance); 300 kW-1 MW $1M; >1-5 MW $2M per occurrence/$5M aggregate; >5 MW $5M (Standardized Contract sec. 7).

External disconnect

External manual visible gang-operated load-break disconnect required for systems >25 kW and for non-inverter systems <=25 kW; inverter-based systems <=25 kW exempt. Lockable with 3/8" shank padlock, labeled 'Generator Disconnect Switch' (SIR Section II.D).

Export compensation

NEM – PSL 66-j (solar etc.) and 66-l (wind); PSC VDER orders (Case 15-E-0751)
Mass-market customers interconnected after 2022 receive net metering with a Customer Benefit Contribution charge; larger projects on Value Stack (VDER). Details per utility tariff; not verified here.

Not bound by the rule

Municipal utilities (NYPA customers) and electric cooperatives are not bound by the SIR; PSEG Long Island/LIPA follows its own (LIPA) SIR-based requirements.

Other utilities in New York

All New York 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