Steps for Generator Installation

Certified Inverter Based Generating Facilities, 10kW and less:

The Application Process:

A complete application package consists of the following components and must be submitted via mail to CL&P:

• Complete Signed and Dated Application
• Processing Fees
• One Line Electrical Schematic
• Site Plan
• Proof of Insurance
• Technical Specification Documents

Contingent Approval Process:

• CL&P will review the application components to ensure that the Generating Facility can be interconnected safely and reliably.
• If the Generating Facility can be interconnected safely and reliably, CL&P will return the “Contingent Approval” to interconnect the Certified Inverter Based Generating Facility within 15 business days. Installation of the facility may begin upon receipt of the Contingent Approval.
• CL&P will initiate the net meter installation for qualifying customers at the time the Contingent Approval is sent.
• If the Generating Facility cannot be safely interconnected, CL&P will notify you in writing.

After Installation:

• Schedule a final building inspection to obtain the Municipal Electric Inspector’s approval.
• Return the copy of the Municipal Electric Inspector’s approval to CL&P.
• CL&P will schedule and perform the Commissioning test.
  • Within ten business days after receiving the Municipal Electric Inspector’s approval, CL&P will schedule and perform the Commissioning Test. You cannot operate your generating facility until the Commissioning test has been performed and Witnessed by CL&P or CL&P waives the Commissioning Test and the appropriate meter (if applicable) is installed.

Successful Interconnection/Approval to Energize:

• Upon successful approval of the Commissioning Test and completion of the net metering installation (if applicable), CL&P will notify you in writing approving the interconnection.
  • For Generating Facilities that meet the Fast Track and Study Process, qualifications refer to the appropriate Generator Interconnection Guidelines.

Processing Fees

*Please note time is measured in business days.

One Line Electrical Schematic

Key Elements to illustrate are:

• The utility voltage at the main panel (three- or single-phase)
• The fuse symbol and size at the main panel feeding the inverter
• The number and location of inverters with the manufacturer's name, the model number, and rating
• The location of the utility revenue meter
• The location of the isolation device
• Title Block that includes but is not limited to, customer's name, address, and revision number of drawing if applicable
• Conventional symbols should be used to illustrate the inverters, circuit breakers, switches, fuses etc.(Refer to CL&P I&R Guidelines)

Site Plan

Key Elements:

• The location of the site structures, metering, and transformer
• The location of the AC Disconnect Switch with relationship to the CL&P meter
  • It must be clearly identified if the AC Disconnect Switch is not located within 10ft of the CL&P meter

Proof of Insurance

Key Elements:

• Policy Carrier
• Policy Number
• Policy Effective Dates
• Applicable Minimum Limited Liabilit