The Imperial Irrigation District approved Tuesday an additional 600 megawatts of solar generation at the Drew switchyard, and refrained from voting on the Campo Verde Solar project until it secures a Partial Participating Transmission Owner agreement with California ISO, which operates the statewide power grid.
IID operates its own grid. The agreement would mandate that any improvements to the IID’s grid in question would be paid for by CalISO.
Various renewable energy generators seek to connect to the Imperial Valley Substation, located outside IID territory and within the CalISO grid. These interconnections can potentially have an adverse impact on the district’s transmission, unless mitigated. Under tariffs and interconnection agreements, interconnecting customers are required to cooperate with transmission providers in matters related to transmission systems in question.
The IID is performing a study that will identify measures the district may need to take to mitigate its system against any adverse impacts that may result from Campo Verde Solar connecting to its grid. The IID expects the affected systems study to be completed in November.
Staff Writer Antoine Abou-Diwan can be reached at 760-337-3454 or firstname.lastname@example.org