Helen’s proposed nuclear plant in Helsinki has entered the statutory environmental impact assessment process, with its assessment programme published for consultation. Engineering consultancy AFRY confirmed the step in an announcement dated 2 November 2026.
Three locations are being examined: Vuosaari, Salmisaari and Norrberget in Östersundom. The programme considers reactors supplying heat alone as well as combined heat and electricity production.
AFRY is preparing the environmental assessment and supporting studies of site conditions, geology and cooling-water arrangements. The programme describes how impacts will be studied; findings will be presented later in an assessment report.
This is a development and consultation milestone, not a construction approval or final investment decision. The work will inform subsequent planning and decisions as Helen explores nuclear energy as part of its aim to end combustion-based energy production by 2040.
Source: AFRY project announcement, 2 November 2026.
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Illustrative Finnish nuclear-sector file photograph: Fortum’s existing Loviisa nuclear power plant, 5 October 2020. This is not Helen’s proposed Helsinki plant or an SMR. Thomas Gartz / Wikimedia Commons, CC BY-SA 4.0. Resized and converted to WebP; same licence retained.
