Pinnacle WestKPI data tables
Pinnacle West operating metrics behind the KPI charts, newest period first (up to 24 periods per chart). Periods use each company's own fiscal labels where the source does; each table names its source.
| Period | Actual CDD | 10-year average CDD |
|---|---|---|
| Q2 2026 | 619 | 534 |
| Q1 2026 | 72 | 1 |
| Q4 2025 | 43 | 71 |
| Q3 2025 | 1,397 | 1,280 |
| Q2 2025 | 578 | 534 |
| Q1 2025 | 6 | 1 |
| Q4 2024 | 214 | 71 |
| Q3 2024 | 1,672 | 1,280 |
Source: Pinnacle West Capital Form 8-K Exhibit 99.2 Consolidated Statistics, Weather Indicators Residential, Actual Cooling Degree-Days and 10-Year Averages. Q3 2024 and Q3 2025 from the quarter ended September 30, 2025 slides (2014-2023 average). Q4 2024 and Q4 2025 from the year ended December 31, 2025 slides (2014-2023 average). Q1 2025 and Q1 2026 from the quarter ended March 31, 2026 slides (2015-2024 average). Q2 2025 and Q2 2026 from the quarter ended June 30, 2026 slides (2015-2024 average), including the March CDD reporting note. Q2 2026 7% CDD increase also in Exhibit 99.1, August 4, 2026. https://www.sec.gov/Archives/edgar/data/764622/000076462226000040/q2_2026xearningsxfinal.htm
| Period | APS nuclear generation |
|---|---|
| Q2 2026 | 2,164 |
| Q1 2026 | 2,393 |
| Q4 2025 | 1,995 |
| Q3 2025 | 2,551 |
| Q2 2025 | 2,139 |
| Q1 2025 | 2,508 |
| Q4 2024 | 2,213 |
| Q3 2024 | 2,557 |
| Q2 2024 | 2,192 |
| Q1 2024 | 2,549 |
| Q4 2023 | 2,229 |
| Q3 2023 | 2,524 |
| Q2 2023 | 1,991 |
| Q1 2023 | 2,507 |
| Q4 2022 | 2,212 |
| Q3 2022 | 2,532 |
| Q2 2022 | 2,192 |
| Q1 2022 | 2,397 |
| Q4 2021 | 2,178 |
| Q3 2021 | 2,488 |
Source: Pinnacle West Capital Form 8-K Exhibit 99.2 Consolidated Statistics, Energy Sources Generation Production Nuclear. APS owned nuclear generation (Palo Verde entitlement) is quarterly FLOW in GWh, not FY totals and not plant-wide Palo Verde MWh. Overlapping quarters use the later filing. Earliest used: https://www.sec.gov/Archives/edgar/data/764622/000076462222000094/a3q_2022xearningsxdeckxf.htm. Latest: https://www.sec.gov/Archives/edgar/data/764622/000076462226000040/q2_2026xearningsxfinal.htm. Window Q3 2021–Q2 2026 (20 quarters).
| Period | Residential | Business |
|---|---|---|
| Q2 2026 | 1,309,284 | 148,120 |
| Q1 2026 | 1,305,506 | 147,483 |
| Q4 2025 | 1,299,430 | 147,271 |
| Q3 2025 | 1,289,919 | 146,536 |
| Q2 2025 | 1,282,226 | 145,834 |
| Q1 2025 | 1,276,813 | 145,144 |
| Q4 2024 | 1,268,990 | 144,461 |
| Q3 2024 | 1,258,211 | 143,918 |
Source: Pinnacle West Capital Form 8-K Exhibit 99.2 Consolidated Statistics, Average Electric Customers, Retail Customers Residential and Business. Q3 2024 and Q3 2025 from the quarter ended September 30, 2025 slides. Q4 2024 and Q4 2025 from the year ended December 31, 2025 slides. Q1 2025 and Q1 2026 from the quarter ended March 31, 2026 slides. Q2 2025 and Q2 2026 from the quarter ended June 30, 2026 slides. Q2 2026 2.1% growth also in Exhibit 99.1, August 4, 2026. https://www.sec.gov/Archives/edgar/data/764622/000076462226000040/q2_2026xearningsxfinal.htm
| Period | Business | Residential |
|---|---|---|
| Q2 2026 | 5,516 | 4,017 |
| Q1 2026 | 4,740 | 2,814 |
| Q4 2025 | 4,659 | 2,838 |
| Q3 2025 | 5,739 | 5,728 |
| Q2 2025 | 4,840 | 3,688 |
| Q1 2025 | 4,038 | 2,669 |
| Q4 2024 | 4,263 | 3,038 |
| Q3 2024 | 5,513 | 5,970 |
Source: Pinnacle West Capital Form 8-K Exhibit 99.2 Consolidated Statistics, Electric Sales (GWH) Retail Residential and Business. Q3 2024 and Q3 2025 from the quarter ended September 30, 2025 slides. Q4 2024 and Q4 2025 from the year ended December 31, 2025 slides. Q1 2025 and Q1 2026 from the quarter ended March 31, 2026 slides. Q2 2025 and Q2 2026 from the quarter ended June 30, 2026 slides. https://www.sec.gov/Archives/edgar/data/764622/000076462226000040/q2_2026xearningsxfinal.htm
| Period | Business | Residential |
|---|---|---|
| Q2 2026 | 5,438 | 3,832 |
| Q1 2026 | 4,608 | 2,766 |
| Q4 2025 | 4,672 | 2,985 |
| Q3 2025 | 5,687 | 5,528 |
| Q2 2025 | 4,826 | 3,630 |
| Q1 2025 | 4,023 | 2,718 |
| Q4 2024 | 4,240 | 2,930 |
| Q3 2024 | 5,343 | 5,299 |
Source: Pinnacle West Capital Form 8-K Exhibit 99.2 Consolidated Statistics, Retail Sales (GWH) Weather Normalized. Q3 2024 and Q3 2025 from the quarter ended September 30, 2025 slides. Q4 2024 and Q4 2025 from the year ended December 31, 2025 slides. Q1 2025 and Q1 2026 from the quarter ended March 31, 2026 slides. Q2 2025 and Q2 2026 from the quarter ended June 30, 2026 slides. Q1 2026 7.4% restatement note from the Q2 2026 weather-normalized retail sales growth slide. https://www.sec.gov/Archives/edgar/data/764622/000076462226000040/q2_2026xearningsxfinal.htm