Strawberry fields forever? The West Sussex farm growing berries in December

The Summer Berry is using LED lighting in 36,000 sq m of glasshouses in Chichester to produce commercially viable winter strawberries for the first time, supplying about 1.5 million punnets over the season, creating year‑round work for roughly 50 staff and reducing reliance on imports. While the technology and partial renewable power cut food miles and bolster domestic supply resilience, experts warn the large heating and lighting demands mean the carbon and cost outcomes hinge on the energy source—a salient point given the UK grows only about 16% of its fruit.

Analysis

The Summer Berry is operating 36,000 square metres of glasshouses in Chichester using LED lighting to produce commercially viable winter strawberries, targeting about 1.5 million punnets over the season and providing year-round employment for roughly 50 people. Management attributes consistent berry sweetness, size and yield to artificial lighting that supplements low natural sunlight, and the site is partially powered by renewable energy with bees used for pollination.

Experts and the article highlight a key trade-off: while domestic year-round production cuts food miles and import reliance (the UK grows only about 16% of its fruit), reproducing summer conditions requires substantial heat and light, so carbon footprint and operating economics “hinge on the energy source.” This is the primary risk to the production model’s sustainability and cost profile.

Market impact is currently mild and cautiously positive: winter supply into supermarkets (including the Christmas window) could command retailer interest and improve supply resilience, but profitability depends on energy costs, the mix of renewables on-site, and whether consumers accept out-of-season domestic strawberries at commercial prices.

Key Decisions for Investors

• Consider selective exposure to companies providing LED horticultural systems, greenhouse build-outs or controlled-environment agriculture services since the article demonstrates commercial viability at scale, but require proof of low-carbon energy integration before increasing allocation
• Monitor site-level energy sourcing and operating-cost metrics (grid carbon intensity, on-site renewables, heating fuel use) as primary leading indicators of profitability and ESG credentialing for these producers
• Track retailer offtake contracts around the Christmas window and any government support for domestic fruit production as near-term catalysts for revenue visibility
• Avoid assuming structural cost advantage until capital expenditure and year-round energy bills are transparent; use short-term hedges or limit position sizes to manage downside if energy prices or policy support change