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How long does the interconnection application process take?

The length of time for the application process depends on the size and complexity of the generator system.

Most applications for residential systems 15 kW or smaller will receive conditional approval to install the system within 25 working days from the time the application is sent to Unitil.

Applications for commercial or industrial systems require more detailed study and the time to process the application depends on the complexity of the system.

Please note that once installation is approved by Unitil and by the local inspector, Unitil will still need to change your meter to one which measures power flow in both directions before the interconnection is completed. Applications for commercial or industrial systems should contact Unitil directly at 1-888-301-7700.