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Rule 21 Working Group 4 – Workshop 6

July 7 @ 10:00 am - 4:00 pm UTC-7

Tuesday, July 7, 2020

Time: 10:00am – 4:00pm



Rule 21 Working Group will have its 6th in-person meeting on Tuesday, July 7, 2020.


Draft Agenda
10:00-10:10 Introductions, agenda, regulatory updates
10:10-10:30 Overview of first draft of Final Report
  • Introduction section
  • Online template for party positions
  • Schedule for completion
  • Questions
10:30-11:00 Issue 19 ZNE New Construction
  • Any outstanding issues parties wish to discuss
  • GPI data request of 5/18 on SCE GIPT update (subject to SCE availability)
11:00-12:00 Issue 18 Anti-Islanding
  • Background section cost of DTT and reactive power matching–confirming text
  • Background section other party edits since “v2”
  • Background section bioenergy text
  • Proposal 18-a BAC and PG&E positions and alternate proposal text
  • Proposal 18-b revised proposal text clarifying or removing reference to ICA
  • Proposal 18-d IOU comments on working group leading and funding text
  • Proposal 18-e screen description related to ROI studies for machine-based generators
  • Proposal 18-e paragraph in discussion on workshop with inverter manufacturers
  • Other issues needing discussion
12:00-1:30 Lunch
1:30-2:00 Issue 18 (continued)
2:00-3:45 Issue F DERMs
  • Background section edits and comments and alternative text proposals
  • Proposal F-1 proposal text confirmation “after ICA values are operationalized”
  • Proposal F-4 proposal wording and proposed alternative wordings
  • Proposal F-4 discussion section, text on working group scope and timing
  • Proposal F-4 IOU comments on deadlines/timelines paragraph
  • Proposal F-5 proposal wording and proposed alternative wordings
  • Proposal F-5 discussion text on GMPs, roadmaps, and annual updates
  • Other issues needing discussion based on comments on “v2” received 7/2
  • Working Group 4

About Rule 21 Working Group Four:  On July 13, 2017, the Commission issued an Order Instituting Rulemaking R.17-07-007 in order to consider a variety of refinements to the interconnection of distributed energy resources under Rule 21. Working Group Four will develop proposals to address four issues related to streamlining and improving the interconnection process, see the scoping memo. The four issues are:

  • Issue 18: Should the Commission adopt changes to anti-islanding screen parameters to reflect research on islanding risks when using UL 1741-certified inverters in order to avoid unnecessary mitigations? If yes, what should those changes entail?
  • Issue 19: Should the Commission adopt streamlined interconnection procedures (e.g. standard configurations eligible for expedited review) to facilitate the implementation of California Zero Net Energy building codes and, if so, what should those procedures entail?
  • Issue 29: Should the Commission establish a forum, either within this proceeding or externally to develop interconnection safety standards to address safety and environmental risks as the interconnection of distributed energy resources devices grows
  • Issue F: What interconnection rules should the Commission adopt to account for the ability of DERMS and aggregator commands to address operational flexibility need.


Remote Access

This Working Group will be hosted via Webex:

Remote Access  


Meeting number (access code): 296 286 744
Meeting password: California (22543676 from phones and video systems)


+1-408-418-9388 United States Toll

Meeting password: California (22543676 from phones and video systems)
Tap here to call (mobile phones only, hosts not supported): tel:%2B1-408-418-9388,,*01*296286744%2322543676%23*01*

Global call-in numbers


Dial sip:296286744@gridworks-fql.my.webex.com
You can also dial and enter your meeting number.

Join using Microsoft Lync or Microsoft Skype for Business
Dial sip:296286744.gridworks-fql.my@lync.webex.com


Questions and Reference 

For reference, Gridworks web pages contain materials on Rule 21 Working Groups, Rule 21 Working Group Two and Rule 21 Working Group Three and Rule 21 Working Group Four

Contact raziz@gridworks.org with questions


July 7
10:00 am - 4:00 pm UTC-7
Event Categories:


Virtual Meeting
CA United States