Hydro Summary Reports

​​The Hydro Summary Reports provide a monthly analysis of Western Area Power Administrations​’ hydrological conditions such as reservoir levels, resulting generation forecasts, and probable purchase power forecasts. The first section of the report summarizes the hydro data for the regions and compares to last year’s data. The next section of the report provides more detailed narrative information for each region.​ ​

2026 Hydro Reports

wdt_ID Title Open File Type Month
1 01-2026 Hydro Conditions and Purchase Power Report Open File PDF January
21 02-2026 Hydro Conditions and Purchase Power Report Open File PDF February
22 03-2026 Hydro Conditions and Purchase Power Report Open File PDF March
23 04-2026 Hydro Conditions and Purchase Power Report OpenFile PDF April
24 05-2026 Hydro Conditions and Purchase Power Report Open File PDF May
25 06-2026 Hydro Conditions and Purchase Power Report Open File PDF June
26 07-2026 Hydro Conditions and Purchase Power Report Open File PDF July

Archived Hydro Reports

Title Date wdt_ID Open File Type Year
2017 Hydro Conditional and Purchase Power Report 10/01/2017 10 Open File PDF 2017
2018 Hydro Conditional and Purchase Power Report 10/01/2018 11 Open File PDF 2018
2019 Hydro Conditional and Purchase Power Report 10/01/2019 12 Open File PDF 2019
2020 Hydro Conditional and Purchase Power Report 10/01/2020 13 Open File PDF 2020
2021 Hydro Conditional and Purchase Power Report 10/01/2021 14 Open File PDF 2021
2022 Hydro Conditional and Purchase Power Report 10/01/2022 15 Open File PDF 2022
2023 Hydro Conditional and Purchase Power Report 12/01/2023 16 Open File PDF 2023
2024 Hydro Conditional and Purchase Power Report 11/22/2024 17 Open File PDF 2024
2025 Hydro Conditional and Purchase Power Report 11/24/2025 18 Open File PDF 2025

Last modified on February 3rd, 2026