2016 Power Supply Improvement Plan

General Integrated Grid Planning Documents

• June 7, 2022 - Technical Advisory Panel Feedback Summary (PDF)
• March 31, 2022 – Hawaiian Electric Response to Order No. 38253 Approving Inputs and Assumptions with Modifications (PDF)
  • Final Oahu Inputs Workbook 1 (EXCEL)
  • Final Oahu Inputs Workbook 2 (EXCEL)
  • Final Oahu Inputs Workbook 3 (EXCEL)
  • Final Oahu Inputs Workbook 4 (EXCEL)
  • Final Maui Inputs Workbook 1 (EXCEL)
  • Final Maui Inputs Workbook 2 (EXCEL)
  • Final Maui Inputs Workbook 3 (EXCEL)
  • Final Maui Inputs Workbook 4 (EXCEL)
  • Final Molokai Inputs Workbook 1 (EXCEL)
  • Final Molokai Inputs Workbook 2 (EXCEL)
  • Final Molokai Inputs Workbook 3 (EXCEL)
  • Final Molokai Inputs Workbook 4 (EXCEL)
  • Final Lanai Inputs Workbook 1 (EXCEL)
  • Final Lanai Inputs Workbook 2 (EXCEL)
  • Final Lanai Inputs Workbook 3 (EXCEL)
  • Final Lanai Inputs Workbook 4 (EXCEL)
  • Final Hawaii Inputs Workbook 1 (EXCEL)
  • Final Hawaii Inputs Workbook 2 (EXCEL)
  • Final Hawaii Inputs Workbook 3 (EXCEL)
  • Final Hawaii Inputs Workbook 4 (EXCEL)
• November 5, 2021 – Grid Needs Assessment Methodology Review Point Book 1 (PDF)
  • Grid Needs Assessment Methodology Review Point Book 2 (PDF)
• September 21, 2021 - Hawaiian Electric Companies' Reply to Party Comments (PDF)
• September 15, 2021 – Hawaiian Electric Companies’ September Status Update (PDF)
• August 19, 2021 – Revision to Updated and Revised Inputs and Assumptions (PDF)
• August 3, 2021 – Revised Inputs and Assumptions and DER Hosting Capacity (PDF)
• July 28, 2021 – Workplan Update (PDF)
• June 18, 2021 – Updated Timeline and Stakeholder Plan (PDF)
• June 4, 2021 – Technical Conference Preliminary Agenda
  • Presentation Slides (PDF)
  • Public Notes (PDF)
• June 1, 2021 – Technical Advisory Panel response to Order No. 37730 (PDF)
• March 4, 2021 – IGP Stakeholder Feedback Summary (PDF)
• January 19, 2021 – IGP Workplan Update and Review Point (PDF)
• May 27, 2020 – IGP Workplan and Schedule Update (PDF)
• July 31, 2019 - Review Points Proposal (PDF)
• December 14, 2018 - Integrated Grid Planning Workplan (PDF)
• July 13, 2018 - Integrated Grid Planning Report filed in Docket No. 2018-0165 (PDF)
• March 01, 2018 - Integrated Grid Planning Report (PDF)

IGP Deliverables

Grid Needs Assessment in Support of Stage 3 RFP

• • Oahu Grid Needs Assessment (PDF) (July 29, 2022)
  • Maui Grid Needs Assessment (PDF) (July 29, 2022)
  • Hawaii Island Grid Needs Assessment (PDF) (July 19, 2021)
    • Hawaii Island Update (PDF) (April 1, 2022)

Historical Data for Forecast Layers

• • HECO Response to PUC IRs (PDF)
    • HE Underlying Inputs (EXCEL)
    • HL Underlying Inputs (EXCEL)
    • Maui Underlying Inputs (EXCEL)
    • Molokai Underlying Inputs (EXCEL)
    • Lanai Underlying Inputs (EXCEL)
    • Energy Efficiency Inputs (EXCEL)
    • Model DER Inputs (EXCEL)
    • Electric Vehicles (EXCEL)
    • Electric Buses (EXCEL)

Grid Needs Assessment & Solution Evaluation Methodology

• • Grid Needs Assessment & Solution Evaluation Methodology Report (PDF) (November 2021)
  • Renewable Energy Zone Study (PDF) (November 2021)
  • Deliverable Draft - March 2021 Update (PDF) (March 2021)

Energy Efficiency Supply Curves

• • IGP Energy Efficiency Supply Curves Memo (PDF) (November 2021)
  • Measure to Bundle Mapping (EXCEL)
  • Unitized Hourly Impacts (EXCEL) (November 9, 2021)
  • Oahu Bundle Summary and Costs (EXCEL) (November 9, 2021)
  • Oahu Bundle Hourly Costs (EXCEL) (September 30, 2021)
  • Maui Bundle Summary and Costs (EXCEL) (November 9, 2021)
  • Maui Bundle Hourly Costs (EXCEL) (September 30, 2021)
  • Molokai Bundle Summary and Costs (EXCEL) (November 9, 2021)
  • Molokai Bundle Hourly Costs (EXCEL) (September 30, 2021)
  • Lanai Bundle Summary and Costs (EXCEL) (November 9, 2021)
  • Lanai Bundle Hourly Costs (EXCEL) (September 30, 2021)
  • Hawaii Bundle Summary and Costs (EXCEL) (November 9, 2021)
  • Hawaii Bundle Hourly Costs (EXCEL) (September 30, 2021)

Distribution DER Hosting Capacity Grid Needs

• • Distribution DER Hosting Capacity Grid Needs Report (PDF) (November 2021)
  • Distribution DER Hosting Capacity Grid Needs High Forecast (EXCEL) (November 2021)
  • Distribution DER Hosting Capacity Grid Needs Base Forecast (EXCEL) (November 2021)
  • Distribution DER Hosting Capacity Grid Needs Low Forecast (EXCEL) (November 2021)

Inputs and Assumptions

• • Final Oahu Inputs Workbook 1 (EXCEL)
  • Final Oahu Inputs Workbook 2 (EXCEL)
  • Final Oahu Inputs Workbook 3 (EXCEL)
  • Final Oahu Inputs Workbook 4 (EXCEL)
  • Final Maui Inputs Workbook 1 (EXCEL)
  • Final Maui Inputs Workbook 2 (EXCEL)
  • Final Maui Inputs Workbook 3 (EXCEL)
  • Final Maui Inputs Workbook 4 (EXCEL)
  • Final Molokai Inputs Workbook 1 (EXCEL)
  • Final Molokai Inputs Workbook 2 (EXCEL)
  • Final Molokai Inputs Workbook 3 (EXCEL)
  • Final Molokai Inputs Workbook 4 (EXCEL)
  • Final Lanai Inputs Workbook 1 (EXCEL)
  • Final Lanai Inputs Workbook 2 (EXCEL)
  • Final Lanai Inputs Workbook 3 (EXCEL)
  • Final Lanai Inputs Workbook 4 (EXCEL)
  • Final Hawaii Inputs Workbook 1 (EXCEL)
  • Final Hawaii Inputs Workbook 2 (EXCEL)
  • Final Hawaii Inputs Workbook 3 (EXCEL)
  • Final Hawaii Inputs Workbook 4 (EXCEL)

Location-Based Forecasts

• • Location-Based Distribution Forecasts (PDF) (November 2021)
  • Oahu Location-Based Forecasts Scenario 1 (EXCEL)
  • Oahu Location-Based Forecasts Scenario 2 (EXCEL)
  • Oahu Location-Based Forecasts Scenario 3 (EXCEL)
  • Maui Location-Based Forecasts Scenario 1 (EXCEL)
  • Maui Location-Based Forecasts Scenario 2 (EXCEL)
  • Maui Location-Based Forecasts Scenario 3 (EXCEL)
  • Molokai Location-Based Forecasts Scenario 1 (EXCEL)
  • Molokai Location-Based Forecasts Scenario 2 (EXCEL)
  • Molokai Location-Based Forecasts Scenario 3 (EXCEL)
  • Lanai Location-Based Forecasts Scenario 1 (EXCEL)
  • Lanai Location-Based Forecasts Scenario 2 (EXCEL)
  • Lanai Location-Based Forecasts Scenario 3 (EXCEL)
  • Hawaii Location-Based Forecasts Scenario 1 (EXCEL)
  • Hawaii Location-Based Forecasts Scenario 2 (EXCEL)
  • Hawaii Location-Based Forecasts Scenario 3 (EXCEL)

NREL Assessment of Wind and Photovoltaic Technical Potential

• • July 30, 2021 Report (PDF)
  • October 1, 2020 Report (PDF)

Competitive Procurement

• • Updated Framework for Competitive Bidding (PDF)

Distribution Planning

• • Distribution Planning Methodology (PDF) (June 2020)
    • (Superseded by November 2021 Grid Needs Assessment Methodology Report, Appendix I)
  • Non-Wires Opportunity Evaluation Methodology (PDF) (June 2020)
    • (Superseded by November 2021 Grid Needs Assessment Methodology Report, Appendix J)

Resilience

• • Working Group Report (PDF)

Hawaii Public Utilities Commission Orders

• • Order No. 38482: Approving, with Modifications, Hawaiian Electric's Grid Needs Assessment (Docket No. 2018-0165, June 30, 2022) (PDF)
  • Order No. 38481: Approving the Revised Competitive Bidding Framework (Docket No. 2018-0165, June 30, 2022) (PDF)
  • Order No. 38253: Approving, with Modifications, Hawaiian Electric's Revised Inputs and Assumptions (Docket No. 2018-0165, March 3, 2022) (PDF)
  • Order No. 38093: Establishing a Procedural Schedule for the Draft Grid Needs Assessment (Docket No. 2018-0165, November 30, 2021) (PDF)
  • Order No. 37927: Establishing a Procedural Schedule for the Updated Revised Inputs and Assumptions (Docket No. 2018-0165, August 23, 2021) (PDF)
  • Order No. 37730: Directing HECO to File Revised Forecast and Assumption (Docket No. 2018-0165, April 14, 2021) (PDF)
  • Order No. 37604: Establishing a Procedural Schedule for the First Review Point (Docket No. 2018-0165, February 4, 2021) (PDF)
  • Order No. 37419: Providing Guidance on the Integrated Grid Planning Process (Docket No. 2018-0165, November 5, 2020) (PDF)
  • Order No. 36725: Providing Guidance on the Integrated Grid Planning Process (Docket No. 2018-0165, November 4, 2019) (PDF)
  • Order No. 36218, Accepting the IGP Workplan and Providing Guidance (Docket No. 2018-0165, March 14, 2019) (PDF)
  • Order No. 35569, Instituting a Proceeding to Investigate the Integrated Grid Planning (IGP) process (Docket No. 2018-0165, July 12, 2018) (PDF)
  • Order No. 34773, Opening a Docket to Serve as a Repository for the GMS and Any Related Filings/Public Comments (Docket No. 2017-0226, August 29, 2017) (PDF)
  • Order No. 34696, Instituting a Proceeding to Review the Power Supply Improvement Plans for the Hawaiian Electric Companies (Docket No. 2014-0183, July 14, 2017) (PDF)

Key Stakeholder Documents Archive