Isle au Haut, Maine

Isle au Haut, Maine

Location: Isle au Haut, Maine

With a high electric rate ($0.39/kWh) and an aging submarine transmission cable, Isle au Haut faces a significant decision: replace the cable or use alternative sources of power and take the island off-grid. Laying a new cable ensures energy security but involves long-term costs to pay off debt associated with the project that could significantly increase electric rates. Centralized solar PV with battery storage and diesel backup would provide reliability in the event of bad weather or malfunction and create equitable benefits for all ratepayers but may also impact rates.

Click here to view the full Island Energy Profile.