Environment & Climate

Taaleri Energia Opens 129 MWp Hallanvahti Solar Park in Finland

Daniel Okoro
By Daniel Okoro
Oct 5, 2026 • 2 min read
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In brief

On October 5, 2026, Taaleri Energia inaugurated the Hallanvahti solar park in Joroinen, North Savo, Finland. The facility has a capacity of 129 MWp and features 204,000 bifacial single-axis tracking panels. It is expected to produce approximately 140 GWh of electricity annually, enough to power around 18,000 households. The project was constructed on drained peatland with measures to preserve the peat layer and manage water flows, with support from partners including Etec Automation, 3Flash Finland, and Eltel Networks.

Taaleri Energia Opens 129 MWp Hallanvahti Solar Park in Finland
Joroinen, FinlandSource: Ahimsa.tv

Taaleri Energia has inaugurated the Hallanvahti solar park in Joroinen, North Savo, Finland, on October 5, 2026. This solar facility boasts a capacity of 129 MWp and is owned by the Taaleri SolarWind III Fund. The park features 204,000 bifacial single-axis tracking panels designed to optimize solar energy capture. Official operations began at the end of June 2026, with the facility anticipated to generate approximately 140 GWh of electricity annually. This output is sufficient to power about 18,000 Finnish households, marking a significant step towards renewable energy adoption in the region.

The Hallanvahti solar project is noteworthy not only for its size but also for its environmental considerations. Built on drained peatland, the project implemented measures to preserve the peat layer and effectively manage water flows. This approach aims to minimize ecological disruption while maximizing energy production. The use of bifacial panels, which capture sunlight on both sides, enhances the facility's efficiency, allowing for increased energy generation compared to traditional solar panels.

Key stakeholders in the project included Etec Automation, 3Flash Finland, and Eltel Networks, who collaborated on engineering, procurement, construction (EPC), and ongoing maintenance. Their combined expertise facilitated a smooth execution of the project, ensuring it met operational and environmental standards. The involvement of these partners highlights the collaborative effort required to bring large-scale renewable energy projects to fruition.

The broader implications of the Hallanvahti solar park extend beyond its immediate energy output. By generating significant renewable energy, the project contributes to Finland's goals of reducing carbon emissions and transitioning toward sustainable energy sources. Additionally, the successful integration of solar technology on previously disturbed land demonstrates the potential for renewable energy development in similar contexts, encouraging further investment in clean energy solutions.

Looking ahead, the Hallanvahti solar park represents a milestone in Finland's renewable energy landscape. As the demand for clean energy continues to grow, projects like Hallanvahti will be crucial in meeting national energy targets and supporting energy independence. The successful implementation of this solar park may inspire similar initiatives across the country and beyond, contributing to a global shift toward sustainable energy practices.

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Daniel Okoro
Written by
Daniel Okoro
Solutions Reporter

Daniel writes about people solving big problems in small, human ways.

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