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Affordability vs. Solar Integration: IID’s Unique Challenges

IID has excelled in prioritizing affordability. While this accomplishment has been their focus, it also
means they haven’t allocated resources to solar integration to the extent that other major utilities
have. As a result, there are unique considerations associated with implementing solar projects in IID jurisdiction.

  • Historically, IID’s more affordable rates have translated to less compelling economics than SCE. However, with IID’s costs having doubled in a few short years, solar remains a solid long term investment.
  • System activation in IID generally takes longer than other utilities with more robust interconnection departments.
  • Most of IID’s meters are not solar ready; therefore the customer is required to purchase a bidirectional meter directly from IID.
  • Batteries help offset low reimbursement rates for solar power sent back to IID.



7 Years



10 Years

*Basic pricing for smaller and larger systems are proportionate to these numbers above.

The numbers above are based on the average annual consumption of 18,999 kWh. The typical system recommended for this usage is 11-12 kW with batteries. The approximate initial cost is $75,000, which nets out to $52,500 after accounting for the federal tax credit.

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