Financials

Financial reports

Title	Posted	Year
Quarterly Financial Report - Q4 2021	01/31/2022, 10:02 AM	2021
Quarterly Financial Report - Q4 2020	01/29/2021, 3:15 PM	2020
Quarterly Financial Report - Q4 2019	06/19/2024, 10:27 AM	2019
Quarterly Financial Report - Q3 2025	10/23/2025, 10:01 AM	2025
Quarterly Financial Report - Q3 2024	05/27/2026, 3:30 PM	2024
Quarterly Financial Report - Q3 2022	10/28/2022, 8:44 AM	2022
Quarterly Financial Report - Q3 2020	10/23/2020, 8:35 AM	2020
Quarterly Financial Report - Q3 2019	06/19/2024, 10:27 AM	2019
Quarterly Financial Report - Q2 2025	07/17/2025, 4:35 PM	2025
Quarterly Financial Report - Q2 2022	07/25/2022, 8:56 AM	2022
Quarterly Financial Report - Q2 2020	07/20/2020, 8:46 AM	2020
Quarterly Financial Report - Q2 2019	06/19/2024, 10:27 AM	2019
Quarterly Financial Report - Q1 2026	04/21/2026, 5:35 PM	2026
Quarterly Financial Report - Q1 2025	06/09/2025, 8:40 AM	2025
Quarterly Financial Report - Q1 2022	04/22/2022, 8:32 AM	2022
Quarterly Financial Report - Q1 2021	05/03/2021, 1:48 PM	2021
Quarterly Financial Report - Q1 2020	04/24/2020, 2:04 PM	2020
Quarterly Financial Report - Q1 2019	06/19/2024, 10:27 AM	2019
Five Year (2020 - 2024) Financial Summary	06/23/2025, 11:54 AM	2025
Audited Financial Report - 2025	04/21/2026, 5:38 PM	2025
2025 FERC Form 1	06/19/2026, 2:51 PM	2025
2024 FERC Form 1	04/17/2025, 11:47 AM	2024
2024 Audited Financial Statements	04/17/2025, 12:13 PM	2024
2023 Continuing Disclosures Annual Report	06/13/2024, 4:04 PM	2023
2023 Audited Financial Statements	05/02/2024, 11:53 AM	2023
2022 Continuing Disclosures Annual Report	05/05/2023, 8:19 AM	2022
2022-2026 Strategic Plan	05/16/2022, 11:39 AM	2022
2021 Continuing Disclosures Annual Report	10/17/2022, 4:28 PM	2021
2020 Audited Financial Statements	04/19/2021, 8:47 AM	2020
2019 FERC Form 1	05/21/2020, 3:52 PM	2019
2019 Audited Financial Statements	05/26/2020, 2:39 PM	2019
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Debt financing

Notice of independent municipal advisor exemption

The ISO has retained Sperry Capital, Inc. as our independent registered municipal advisor in accordance with the independent registered municipal advisor exemption to the SEC Municipal Advisor Rule. Sperry Capital will provide us advice on proposals from financial services firms regarding issuance of municipal securities and municipal financial products (including investments of bond proceeds and escrow investments).

2023 Continuing Disclosures Annual Report 06/13/2024, 4:04 PM
2021 Official Statement 06/25/2021, 10:42 AM

Budget and grid management charge

2026 Final Grid Management Charge Revenue Requirement Project Budget and Rates - Dec 18, 2025 12/18/2025, 2:48 PM
Final 2025 Budget and Grid Management Charge Rates Book 12/23/2024, 8:26 AM
Final 2024 Budget and Grid Management Charge Rates Book 12/15/2023, 10:28 AM

Cost-of-service study

Revised Draft Final 2023 Cost-of-Service Study and 2024-2026 Grid Management Charge Update 11/04/2024, 8:47 AM

Audit reports

2024 Audited Financial Statements 04/17/2025, 12:13 PM
2023 Audited Financial Statements 05/02/2024, 11:53 AM