Integrated Grid Planning

Technical Advisory Panel

To obtain independent peer assessment, including input and feedback, a Technical Advisory Panel was established. The panel consists of industry peer group of experts participating voluntarily from internationally recognized utilities, market operators, and research organizations who have demonstrated engineering expertise in IGP related processes, methodologies and technologies involving resource, transmission and distribution planning for large scale and distributed renewable resources.

Technical Advisory Panel meetings will be held periodically, in person and via webinar, aligned to key process milestones. Specific meeting dates are to be agreed upon by the TAP members.

Meeting Documents

January 19, 2023 (Resource Adequacy)

Reviewed preliminary resource adequacy results.

January 13, 2023 (TAP Transmission Sub-Committee)

Reviewed preliminary steady-state results from IGP System Security Study for Maui and Hawaii Island.

December 1, 2022

Reviewed preliminary RESOLVE cases, provided updates on system security and distribution grid needs, and provided an overview of the protection roadmap.

November 30, 2022

Reviewed pathway to Net Zero and summary of community engagement.

November 16, 2022

Provided a summary of Distribution Grid Needs and review of the Non-Wires Alternative methodology.

November 1, 2022 (TAP Transmission Sub-Committee)

Reviewed the methodology and assumptions for the IGP System Security studies.

August 11, 2022

Provided overview of the Oahu and Maui GNAs, discuss next steps for the grid needs analyses.

July 12, 2022 (Resource Adequacy and Modeling Sub-Committee)

Discussed new resource adequacy analyses to vary firm, PV+BESS capacity additions and evaluate the impact of a thermal HDC on the resource plan.

July 7, 2022 (Joint Resource Adequacy and Modeling and Transmission Sub-Committee)

Discussion and review of PUC Decision and Orders regarding Stage 3 RFPs and IGP Grid Needs Assessment Methodology Review Point.

June 2, 2022 (Resource Adequacy and Modeling Sub-Committee)

Discussed updated resource adequacy analyses using NSRDB distributed PV data and revised thermal outage rates.

May 4-5, 2022

Provided summary of TAP recommendations, updates on system stability studies and grid needs assessments.

April 28, 2022 (Resource Adequacy and Modeling Sub-Committee)

Reviewed probabilistic resource adequacy test cases for Oahu.

March 11, 2022 (TAP Distribution Sub-Committee)

Discussed appropriate transformer/circuit load forecast scenario for the scope and timing of grid capital expansion projects.

March 10, 2022 (Resource Adequacy and Modeling Sub-Committee)

Provided overview of Order 38253 issued on March 3, 2022. Presented the probabilistic Resource Adequacy (RA) process and assumptions.

February 25, 2022 (TAP Transmission Sub-Committee)

Discussed the scope of the Under Frequency Load Shed study required by Order 38197.

January 21, 2022 (TAP Transmission Sub-Committee)

Presented “System Scan” PSCAD study results for major islands and addressed TAP feedback from 2021 December meeting.

January 20, 2022 (Resource Adequacy & Modeling Sub-Committee)

Presented recalculated Hourly Dependable Capacities (HDCs) based on TAP feedback, including monthly grouping of similar hours, increased National Renewable Energy Laboratory (NREL) data samples, and percentile data segregation.

December 13, 2021 (TAP Transmission Sub-Committee)

Presented the 2021 System Stability Study objectives, status, and methodology.

November 1 & 18, 2021 (Resource Adequacy & Modeling Sub-Committee)

Presented an overview of Energy Reserve Margin (ERM) criteria and reviewed ERM test analyses.

October 11, 2021 (TAP Distribution Sub-Committee)

Received feedback via email on distribution planning and non-wires opportunity evaluation methodologies.

October 4, 2021 (TAP Transmission Sub-Committee)

Reviewed transmission planning criteria and IGP System Security methodology.

October 1, 2021 (TAP Transmission Sub-Committee)

Presented Oahu, Maui and Hawaii Island’s Renewable Energy Zone (REZ) study.

September 9, 2021

Reviewed the TAP purpose, structure, engagement, schedule, and stakeholder feedback. Updated TAP with on-going IGP work.

February 24, 2021

Discussed Stage 3 RFP for the Big Island, Community-Based Renewable Energy (CBRE) docket, and DER parties’ access to RESOLVE tool.

December 17, 2020

Reviewed HECO’s near-term plan for renewable energy transition.

August 14, 2020

Reviewed the forecasts developed from the Forecast Assessment Working Group (FAWG) inputs.

November 19, 2019

Reviewed latest draft of the proposed IGP Solution Sourcing process. Discussed capacity, energy, ancillary service needs, and (aging) units’ retirement considerations. Reviewed the Order 36725 issued on November 4, 2019.

October 22, 2019

Reviewed comments received on addition of resources, regulating and ramp reserves, transmission planning, and soft launch RFP. Discussed potential unit retirement in the IGP.

September 10, 2019

Discussed regulating reserve and ramp requirements, transmission planning criteria, capacity planning criteria, and soft launch.

May 7, 2019

Reviewed planning criteria discussions for capacity, regulating reserve and ramp requirements, and transmission planning criteria.

September 25-26, 2018

Presented an overview of IGP components.