Cal-ISO opens interregional transmission project submission period

The California ISO (Cal-ISO) on Jan. 25 said it opened the submission period for any entity to file an interregional transmission project to be considered as part of the Cal-ISO transmission planning process.

An interregional transmission proposal could potentially replace or defer a regional solution that is in the Cal-ISO transmission plan, the grid operator said.

The submission period for interregional projects is held every other year, and any proposals will be considered in the 2016-2017 transmission planning cycle, according to the Cal-ISO notice.

Because such projects can involve multiple planning regions, a proponent of an interregional project must submit its plan to each relevant planning region no later than March 31, the Cal-ISO said.

However, the regional planning authorities would benefit from projects being submitted in January or early February in order to share the information at the annual Interregional Coordination Meeting, the Cal-ISO said in a separate statement.

That meeting is scheduled for Feb. 25 in Phoenix. The meeting will include a review of each region’s planning process and transmission needs, along with consideration of any interregional solutions, the Cal-ISO said.

Besides the Cal-ISO, the other regional planning authorities include Northern Tier Transmission Group, ColumbiaGrid and WestConnect, according to a notice of the meeting.

No later than 75 days after the submission deadline, the regional planning authorities are to develop an evaluation process for the proposals and agree to common study assumptions, cost data and a schedule for determining the selection of an interregional project, the Cal-ISO said.