Voltiris Opens Netherlands’ First Hectare-Scale Solar Strawberry Greenhouse

Strawberries under a power-plant roof. On October 14, 2026, HortiDaily covered the October 8 opening of the Netherlands’ first hectare-scale spectral-filtering solar greenhouse — a Voltiris install at Genson Group in Someren, with more than 60 growers and partners walking the rows. Voltiris’ project blog fills in the agronomic and energy pitch.

What was installed

• Nearly 2,000 spectral-filtering modules under one hectare of greenhouse roof
• About four weeks of installation with cultivation continuing as normal
• Modules convert heat-carrying wavelengths plants do not need into electricity while photosynthetic light passes through

Why strawberry growers care

Glasshouse strawberries overheat on bright summer days, which hurts berry size and premium grades. Voltiris cites prior trials at Delphy IC and Proefcentrum Hoogstraten with up to a 26% increase in premium fruit yield under a cooler canopy, and about 25 kWh of renewable electricity per m² per year from the spectral-filtering setup — both company-stated figures. Genson supplies Bakker Barendrecht / Albert Heijn soft fruit channels; partners frame the project as quality plus CO₂ reduction. An RVO (Netherlands Enterprise Agency) grant helped fund the Dutch scale-up after Voltiris’ earlier hectare tomato project in Switzerland.

What happens next

Voltiris says the real work is seasonal monitoring, with the first performance results expected after winter. Until those numbers land, the 26% premium-yield claim stays in the trial column.

Rocks take

Agri-photovoltaics that do not starve the crop is the connected-agriculture story of the week: spectral filtering is basically a greenhouse-scale light recipe with a kWh meter attached. DIY indoor growers should watch the post-winter dataset before treating brochure yields as settled science.