Pinnacle West Targets Cholla Gas Conversion, Stock Up 2.5% on Outlook
0h ago|4 min readStandard
Fazen Markets Editorial Desk
Collective editorial team · methodology
pinnacle-west-capitalutility-stocks
Fazen Markets Editorial Desk
Collective editorial team · methodology
Trades XAUUSD 24/5 on autopilot. Verified Myfxbook performance. Free forever.
Risk warning: CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. The majority of retail investor accounts lose money when trading CFDs. Vortex HFT is informational software — not investment advice. Past performance does not guarantee future results.
Pinnacle West Capital Corporation announced on 04 August 2026 that it is targeting the conversion of its Cholla Unit 4 to natural gas by 2029 while forecasting its 2026 earnings per share to land at the high end of its $4.55 to $4.75 guidance range. The utility holding company’s stock, ticker PNW, traded at $148.16 as of 19:53 UTC today, reflecting a daily gain of 2.54%. The share price moved within a daily range of $146.47 to $149.88, signaling positive investor reception to the company's operational and financial targets.
Utilities are under significant pressure to decarbonize their generation fleets while maintaining grid reliability and managing customer costs. Pinnacle West’s plan to convert the 380-megawatt Cholla Unit 4 from coal to natural gas by 2029 represents a concrete step in this transition. The company’s subsidiary, Arizona Public Service (APS), had previously retired three of Cholla’s four units between 2016 and 2020, making the conversion of the final unit a logical culmination of a long-term site strategy.
The announcement comes amid a broader sector trend of utilities accelerating coal retirements in favor of gas and renewables to meet regulatory mandates and environmental goals. This macro backdrop includes persistent, though moderating, wholesale power prices and ongoing federal and state policy support for cleaner energy infrastructure. The specific catalyst for this announcement appears to be the company’s forward-looking guidance confirmation, providing investors with near-term earnings visibility that supports the capital allocation for the long-term conversion project.
Pinnacle West’s stock performance on the day of the announcement was notably strong relative to the broader market. The 2.54% gain to $148.16 significantly outpaces the typical daily movement for a regulated utility. The stock’s intraday high of $149.88 brought it close to the psychologically significant $150 level, while its low of $146.47 established a clear support point for the session.
| Metric | Value |
|---|---|
| PNW Closing Price | $148.16 |
| Daily Gain | +2.54% |
| Intraday Range | $146.47 - $149.88 |
The company’s 2026 EPS guidance range of $4.55 to $4.75 places its forward price-to-earnings ratio at approximately 31.2x, using the midpoint of the range. This valuation is elevated compared to the historical average for the utility sector, which often trades closer to 18-22x earnings, reflecting a growth premium assigned by the market. The 380 MW capacity of the Cholla conversion project represents a meaningful portion of APS’s generation portfolio, which has a total capacity of over 6,400 MW.
The positive market reaction suggests investors are interpreting the strong EPS guidance as a sign of operational stability, which de-risks the capital expenditure for the Cholla conversion. This type of project typically benefits engineering and construction firms specializing in power plant conversions, such as KBR and AECOM. Natural gas turbine suppliers like GE Vernova could also see increased interest as utilities pursue conversion projects to ensure dispatchable power capacity.
A counter-argument to the bullish narrative is the execution risk associated with any major infrastructure project. Regulatory approvals, potential cost overruns, and construction delays could impact the projected 2029 in-service date and budget. a continued decline in renewable energy and battery storage costs could challenge the long-term economics of new gas-fired generation before the unit even comes online. Trading flow data indicates institutional buyers were active, with the stock’s ascent on above-average volume pointing to a build-up of long positions betting on successful execution.
The next immediate catalyst for Pinnacle West is its upcoming quarterly earnings report, scheduled for late October 2026. Investors will scrutinize the results for confirmation that the company is on track to achieve the high end of its full-year EPS guidance. Key levels to watch for the stock include resistance around the $150 mark, a break above which could signal further momentum, and support near the 50-day moving average, currently around $145.
Beyond company-specific events, the broader regulatory environment remains critical. Decisions from the Arizona Corporation Commission on rate cases and resource planning will directly impact the economics of the Cholla conversion. Market participants should also monitor natural gas price volatility, as significant spikes could alter the projected cost savings and environmental benefits of switching from coal, potentially inviting greater regulatory scrutiny.
The Cholla Power Plant is a coal-fired generating station in Joseph City, Arizona, operated by Arizona Public Service. The facility originally consisted of four units. Units 1, 2, and 3 were retired between 2016 and 2020. The current plan involves repowering the remaining 380-megawatt Unit 4 to run on natural gas, a process that extends the asset's life while reducing its air emissions.
A coal-to-gas conversion typically involves replacing the coal-fired boiler with natural gas turbines or retrofitting the existing boiler to combust gas. This process eliminates the need for coal handling infrastructure and reduces emissions of sulfur dioxide, mercury, and particulate matter. However, the conversion is a capital-intensive project that requires significant engineering work and regulatory approvals before construction can begin.
A high price-to-earnings ratio, such as Pinnacle West's 31.2x, often indicates that investors are pricing in expectations for above-average earnings growth compared to sector peers. For a utility, this growth premium is usually tied to a favorable regulatory environment, strong rate base growth, or a successful execution of a strategic shift, like the transition to cleaner energy sources.
Pinnacle West's stock rallied on confirmed earnings strength that underpins its strategy to convert a major coal unit to natural gas.
Disclaimer: This article is for informational purposes only and does not constitute investment advice. CFD trading carries high risk of capital loss.
Vortex HFT is our free MT4/MT5 Expert Advisor. Verified Myfxbook performance. No subscription. No fees. Trades 24/5.
Trade oil, gas & energy markets
Start TradingSponsored
Open a demo account in 30 seconds. No deposit required.
CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.