Eversource packet checklist

Sample preview — compiled from public sources 2026-08-19

The structural contents of an Eversource Massachusetts DG interconnection packet under the DPU-approved Standards for Interconnection of Distributed Generation. Check every form against the tariff revision in force before filing.

• Simplified or Expedited/Standard interconnection application in PowerClerk, tied to the correct customer of record and service point confirm current revision
• Pre-application report — required for systems 250 kW AC and above
• Single-line diagram showing the point of common coupling, disconnects, and protection
• Equipment spec sheets — inverters meeting the IEEE 1547-series requirements Eversource publishes confirm current revision
• Interconnection Service Agreement for Expedited and Standard projects
• Net-metering schedule information where the project takes net metering service
• Application fee per the fee schedule — $0 qualifying Simplified; $100–$300 small network systems; $4.50/kW (min $300, max $7,500) Expedited/Standard verify current schedule
• Filed with the correct DG group — Eastern MA (emdg@eversource.com) or Western MA (wmdg@eversource.com)

The structural contents of an Eversource Connecticut interconnection packet under the guidelines established per PURA Docket No. 03-01-15RE03, as published on Eversource's Application to Connect page.

• Interconnection application in PowerClerk with e-signature confirm current revision
• One-line electrical schematic
• Site plan showing meter and AC disconnect location
• Proof of insurance — published coverage levels vary by capacity, from $300K to $5M verify current schedule
• Technical specification / data sheets with UL 1741 certification
• Proof of compliance with the applicable IEEE standards
• Guidelines acknowledgment for the correct track — inverter-based 25 kW or less, Fast Track (up to 2 MW), or Study Process (above 2 MW)
• Application fee — $200 (≤25 kW inverter-based) / $500 (Fast Track) / $1,000 + study fees (Study Process) verify current schedule

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