Top 3 Renewable Energy Stocks To Watch In October 2026

Oil prices are climbing on concerns about an escalating conflict between the US and Iran, which keeps traditional energy costs high and unpredictable. Expensive fuel can push policymakers, utilities and households to look harder at cleaner power sources like solar, wind, hydro and tidal projects. This article walks through three listed renewable energy stocks from our focused screener that could help you get exposure to that long term shift.

The stocks covered next are just a starting sample from this theme, while the full screen surfaced 213 more renewable energy companies with equally compelling narratives that are not covered here. To go broader and identify ideas that fit your own risk, sector and size preferences, head straight into the Renewable (solar, wind, hydro or tidal) Energy screener.

Solaria Energía y Medio Ambiente (BME:SLR)

Solaria Energía y Medio Ambiente is a pure-play solar producer, developing and running large utility-scale photovoltaic parks that directly feed into the renewable generation theme backing this screener. This focus puts its asset base and growth bets under a brighter spotlight.

Solaria Energía y Medio Ambiente develops and operates utility scale solar PV plants, with most revenue coming from Spain at about €251.9 million and smaller contributions from Italy and Uruguay. The stock is mid cap at roughly €2.1b.

"Solaria's status as the leading owner of ready-to-build battery storage permits, totaling over 20 GWh across Spain and broader Europe, positions it to capitalize on recent regulatory tailwinds and subsidy programs. This could unlock a significant new earnings stream, with the potential to raise net margins as storage deployment enables greater price optimization and grid services revenue."

The real test for Solaria comes from how one less visible pressure shapes future returns on all that contracted solar capacity.

That pressure point is exactly where Solaria Energía y Medio Ambiente could surprise on the upside, so read the full narrative for Solaria Energía y Medio Ambiente to see how storage, regulation and pricing really interact.

Grenergy Renovables (BME:GRE)

Grenergy Renovables develops and builds large scale solar, wind and battery projects that plug directly into the renewable power build out investors care about in this screener.

Grenergy Renovables runs a vertically integrated renewables platform, with most revenue from Development & Construction at about €1.1b, plus €80.8 million from Energy, €71.3 million from Commercialization and €4.8 million from Services. The stock is roughly €1.9b in market value.

"Rapid scale up of large hybrid PV plus storage platforms in Chile, including Oasis of Atacama and Central Oasis, is set to convert today’s heavy CapEx into recurring energy EBITDA as new gigawatt hours come online and operate increasingly on higher price night-time curves."

The real swing factor for Grenergy Renovables is how one less visible funding pressure shapes the future balance between growth and margins.

That funding tension is exactly what the full narrative for Grenergy Renovables unpacks, separating healthy balance sheet stretch from riskier acceleration signals that investors often miss.

EDP Renewables (ENXTLS:EDPR)

EDP Renewables gives you direct exposure to the build out of giant wind farms and utility scale solar parks, with most of its value tied to owning and operating these assets across several continents rather than just supplying equipment into the clean power chain.

EDP Renewables develops, builds and runs wind and solar plants across Europe, North America and Asia Pacific, generating about €1 billion from North America, €952 million from Europe and €145 million from APAC, and is valued at roughly €13.1b.

"EDPR's significant increase in capacity additions, particularly in the US solar projects, sets a strong foundation for future growth and is expected to boost revenue once these capacities are fully operational."

What really moves the needle now is how a single pressure on future returns shapes the balance between growth ambitions and long term profitability.

That pressure on future returns is exactly what the full narrative for EDP Renewables unpacks, showing where EDP Renewables’ growth ambitions could decouple from both risk and capital intensity.

Seeking Fresh Alternatives Beyond Renewables?

New themes can gain momentum quickly. Once the breakout is obvious, early entry points may no longer be available and pricing can move away from later investors. Scan for fresh ideas that remain under the radar and consider them early.

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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.

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