Integrated Grid Planning

Stakeholder Technical Working Group Documents

The Stakeholder Technical Working Group (STWG) streamlines the previous working group structure by combining the previous working groups, Forecast Assumptions, Distribution Planning, Solution Evaluation and Optimization, and Grid Services Working Groups. Combining and streaming the working group structure will help to focus stakeholder time and efforts, provide opportunities for stakeholder presentations and allows for robust and comprehensive discussion and collaboration on various technical topics. The STWG will be utilized to address input and feedback on technical issues and increase transparency in the IGP process. For example, this technical working group could be used to solicit feedback on NWA opportunities, other acquisition of grid services, modeling sensitivity results, inputs and assumptions, among others.

Meeting Documents

January 19, 2023

Reviewed preliminary resource adequacy results and provided an update on Distribution Grid Needs.

December 15, 2022

Reviewed the UFLS study and discussed next steps on the resource adequacy modeling.

November 29, 2022

Reviewed preliminary RESOLVE modeling results.

September 14, 2022

Discussed update on energy efficiency supply curves and resource adequacy workplan.

August 4, 2022

Provided a TAP progress update and an overview of the Oahu and Maui Grid Needs Assessments.

June 9, 2022

Meeting to provide TAP progress update and discuss Oahu resource adequacy analyses.

November 19, 2021

Reviewed November 5, 2021 IGP Grid Needs Assessment Methodology Review Point filing and energy efficiency supply curves.

October 13, 2021

Presented Energy Reserve Margin (ERM) criteria and Analyses. Hawaii Natural Energy Institute (HNEI) discussed their ERM findings.

October 6, 2021

Discussed locational forecasts, Circuit Hosting Capacity, System Security Analysis Process, and Renewable Energy Zone (REZ) Assessment.

September 23, 2021

Reviewed non-DER, non-EV time-of-use assumptions and estimated impacts. Reviewed AEG EE Supply Curves.

September 7, 2021

Reviewed updates to IGP inputs and assumptions in August 2021 filing. AEG (Applied Energy Group) presented the draft energy efficiency supply curves.

August 4, 2021

Presented Hawaii Island Near Term Grid Needs Assessment and background for Stage 3 RFP.

July 16, 2021

Reviewed resource, fuel (and sensitivities) cost forecasts presented at June 4th Technical Conference. Updated NREL solar and wind potential study based on Ulupono input. Reviewed transmission analysis to identify renewable energy zone.

July 14, 2021

Received feedback on planned modeling sensitivities. Discussed impact of inertia criteria and unit retirement assumptions on resource plan.

June 30, 2021

Andrew Isaacs (Electranix) presented Island-Wide PSCAD study for the Stage 2 RFP IRS.

June 17, 2021

Presented updated DER forecasts, LoadSEER/Synergi deep dive, and EV managed vs unmanaged charging assumptions.

June 2, 2021

Reviewed modeling tools needed to conduct grid needs assessment and sensitives. Outlined planning criteria, ancillary service rules, and DER forecasts.