California ISO

Transmission Planning

The ISO’s Transmission Planning Process is an integrated, open, participatory and transparent process that focuses on ensuring reliable, economically efficient, and non-discriminatory use of the transmission system. It includes Local planning – Planning for the transmission systems of the ISO’s Participating TOs to meet the needs of LSEs serving Load within the ISO Balancing Authority Area; Sub-regional planning –by aggregating the assessment of transmission needs of the Participating TOs and LSEs within the ISO Balancing Authority Area; and Regional planning – Planning across sub-regions through the WECC, by means of the ISO’s membership and active participation in WECC committees such as Transmission Expansion Planning Policy Committee (TEPPC).
ISO/CPUC Memorandum of Understanding regarding RETPP
pdf 764K | Abstract | 05/17/2010 08:34

FAQ's

FAQs - General Questions Regarding the Grid Under ISO Operational Control
pdf 106K | Abstract | 06/14/2010 13:51
FAQs - Generation Interconnections to Transmission Facilities Under ISO Operational Control
pdf 33K | Abstract | 12/26/2008 14:08
FAQs - Grid Assets Under ISO Operational Control
pdf 37K | Abstract | 02/04/2010 14:46

Reliability

Reliability Requirements
Reliability Requirements / Resource Adequacy (RA) is a mandatory planning and procurement process to ensure adequate resources to serve all customers in real time.
   Local Capacity Requirements (LCR)
Reliability Planning
The California ISO (the ISO) provides electricity transmission and related reliability services under both State and federal authority that are essential to the California economy as well as the health and welfare of its citizens.
Generator Interconnection Process
Requirements and resources for Generating Facilities seeking interconnection with the transmission grid in the California ISO Control Area.

Transmission Plans and Studies

Stakeholder Initiatives - Transmission Planning Related
2011 California ISO Transmission Plan
2010 California ISO Transmission Plan
Includes planning activities that took place in 2009
2009 California ISO Transmission Plan
Includes planning activities that took place in 2008
Sub-Regional Transmission Planning
2008 and Earlier Transmission Planning Activities

2009 Request Window Form and Instructions

Request Window Submission Form and Attachment A
doc 79K | Abstract | 08/15/2009 00:11
Instructions for Request Window Submission
pdf 77K | Abstract | 11/14/2008 17:00

Report on Preliminary Renewable Transmission Plans

Report on Preliminary Renewable Transmission Plans
Report authored by ISO Regional Transmission Group and published in 08/2008
pdf 9589K | Abstract | 08/07/2008 10:09

Regional Transmission NDA

Instructions to Access Secure Transmission Planning Website
pdf 58K | Abstract | 05/06/2010 15:43
Regional Transmission NDA
pdf 179K | Abstract | 07/21/2010 09:27
Market Notice - California ISO Regional Transmission Secured Webpage
html 12K | Abstract | 04/03/2008 12:25
Criteria for Access to Secure Web Page
pdf 13K | Abstract | 12/18/2008 14:15
WECC Nonmember Confidentiality Agreement for WECC Data
doc 53K | Abstract | 06/14/2010 11:53

Transmission Planning Process BPM

Second Draft Revised BPM for Transmission Planning
pdf 773K | Abstract | 07/23/2010 17:03
Draft Revised BPM for Transmission Planning
pdf 611K | Abstract | 06/24/2010 17:01     View Stakeholder Comments
BPM for Transmission Planning Process
Transmission Economic Assessment Methodology Report
pdf 1475K | Abstract | 06/03/2004 13:32

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