The current heatwave across Great Britain and Europe is putting electricity systems under pressure, with the National Energy System Operator paying sharply higher prices to keep the lights on. For investors, sudden stress like this can shift attention to utilities, their pricing power, and their exposure to emergency market conditions. This article looks at how that backdrop links to our Utilities Sector screener and what it might mean for stocks tied most closely to these power market tensions. Ahead, you will see 3 stocks from the screener that appear positively exposed to this news driven setup.

AGL Energy (ASX:AGL)

Overview: AGL Energy is one of Australia’s largest integrated utilities, supplying electricity, gas and telecoms to households and businesses while running a broad mix of coal, gas, wind, hydro, solar and battery assets that keep the grid supplied. It also offers services like electric vehicle charging and moving house support, aiming to be a one stop shop for essential services.

Operations: AGL Energy generates most of its A$14.3b in revenue from Customer Markets at about A$9.9b and Integrated Energy at about A$8.9b, with inter segment eliminations of roughly A$4.4b, all from Australia.

Market Cap: A$5.6b

AGL Energy is tightly linked to power price spikes and demand surges, so its coal, gas and growing fleet of flexible assets can benefit when heatwaves and supply crunches push wholesale prices higher, as seen in the UK and Europe. At the same time, AGL is still in a turnaround, with high debt, current losses and a dividend that is not yet backed by robust free cash flow. The key considerations for investors include its relatively low valuation metrics, expectations already reflected in the market for improving profitability, and ongoing investment in batteries and renewables that could reshape how earnings behave through future weather shocks and market stress.

AGL Energy’s turnaround story, low valuation metrics and exposure to extreme power pricing could be masking the real risk reward trade off, so before the next weather shock hits, read the 4 key rewards and 2 important warning signs (1 is major!)

Clearway Energy (CWEN)

Overview: Clearway Energy is a US based power producer that owns about 12.9 GW of clean energy and flexible gas generation assets across 27 states. It supplies electricity from wind, solar, battery storage and gas plants that help keep the grid stable when weather or demand swings. The company focuses on long term contracted projects, often with large corporate customers, aiming to turn that portfolio into steady cash flows for shareholders.

Operations: Clearway Energy generates about US$1.5b in revenue, with roughly US$1.2b from Renewables & Storage and US$284m from Flexible Generation, all from the United States.

Market Cap: US$7.5b

Clearway Energy sits at the crossroads of heat driven power demand, the growing need for grid reliability and rising electricity needs from data centers. At the same time, the stock still carries a modest P/S multiple, weak recent margins and a dividend that is not well covered by earnings. Forecast earnings growth of about 50% a year and a multi year, US$3b capital deployment plan give the company several avenues to put its renewables, storage and peaking plants to work. Investors also need to weigh high leverage, exposure to weather sensitive output and the reliance on ongoing equity and debt funding. The tension between that growth plan and the risks around funding, execution and board oversight is where the real opportunity and potential downside for Clearway Energy may lie.

Clearway Energy’s growth plan and modest P/S multiple suggest the stock’s story may be more nuanced than it looks at first glance, so it is worth comparing that with the 2 key rewards and 4 important warning signs (1 is major!)

TransAlta (TSX:TA)

Overview: TransAlta is a Calgary based power producer that develops, generates, and sells electricity from a mix of gas, hydro, wind, solar and energy marketing activities across Canada, the United States and Western Australia.

Operations: TransAlta generates most of its revenue from Gas at about CA$1.2b, with additional contributions from Energy Transition at CA$343m, Hydro at CA$339m, Wind & Solar at CA$245m and Energy Marketing at CA$142m, partly offset by corporate and unallocated items.

Market Cap: CA$5.8b

TransAlta stands out in this heat driven power story because it combines a large fleet of dispatchable gas and hydro assets with growing renewables and environmental products. This gives it multiple ways to benefit when grids are under stress and prices spike. At the same time, the company is still working through profitability challenges, carries higher risk funding, and is absorbing a US$1b Colorado gas peaker acquisition and a leadership transition that could test execution. For investors, the mix of a wide discount to estimated cash flow value, high forecast earnings growth and exposure to weather driven scarcity pricing makes TransAlta a stock where both the potential upside and the risks are too important to overlook.

TransAlta’s wide discount to estimated cash flow value and high forecast earnings growth could be telling a very different story about this acquisition heavy shift, so it is worth reading the analyst forecasts for TransAlta

The three utilities highlighted here are just a starting point. The full Utilities Sector screener surfaces 16 more companies that share similarly compelling stories around grid reliability, cash flow strength, and exposure to electricity demand. Use Simply Wall St to identify and analyze the specific catalysts, risk profiles, and narratives that matter most to you so you can focus on the highest conviction utilities ideas in this sector.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.