Mini plant flicks switch on massive solar array

BusinessGreen staff
clock

Oxford facility fits 3MW rooftop system across area the size of five football pitches

Mini's production plant in Oxford is now being powered by one of the largest solar rooftop systems in the UK.

More than 11,500 panels have been fitted across an area roughly the size of five football pitches to create a 3MW array capable of producing enough electricity to power the equivalent of 850 households.

The system is financed, owned, installed, and maintained by Free Green Energy Corporation, which will sell the electricity to Mini under a 20-year power purchase agreement. The company expects this arrangement to reduce its carbon emissions by around 1,500 tonnes a year.

The building already boasts a range of environmental credentials including 3,869 individually programmable LED lights, a special energy-saving "rest mode" for the 1,000 robots in the plant's new bodyshop, and a water harvesting system to supply the toilets. Meanwhile, so-called 'heat wheels' in the building's roof control the recirculation and admission of fresh air to reduce the amount of artificial heating and cooling required.

"We are delighted that our new solar farm is now up and running and already producing green energy for Plant Oxford," said Frank Bachmann, managing director of Mini Plant Oxford. "It is fitting that the first of these panels have gone onto our new bodyshop as the building has been designed with environmental performance at its heart."

The news came in the same week as chemicals giant DuPont inaugurated a 4.5MW solar-power plant at its facility in Cernay, France.

The project consists of 18,400 panels spread over 15 acres, each of which is coated with advanced materials developed by DuPont that are designed to improve the power output, durability, and return on investment for solar energy systems.

The Cernay solar array is expected to produce five million kilowatt hours (kWh) of solar-generated electricity each year, roughly the equivalent to the annual amount of electricity consumed by 2,000 French households, and makes up the bulk of the 11 million kilowatt hours of solar electricity generated each year by 13 installations across DuPont's global estate.

"The solar park in Cernay is a prime example of DuPont demonstrating its commitment to develop collaborative and innovative solutions and helping to ensure a more energy secure future," said Martin Virot, country leader, DuPont France. "We are pleased to see this project realised in France, leveraging our advanced materials to ensure a well-performing, long-term source of electricity as we strive to meet the growing global energy demand more sustainably."

More on Solar

Exceedingly good solar: Mr Kipling unveils £2.1m solar farm at Barnsley bakery

Exceedingly good solar: Mr Kipling unveils £2.1m solar farm at Barnsley bakery

New 2.2MW on site solar farm installed to power cake production and cut carbon at the Premier Foods site in South Yorkshire

Stuart Stone
clock 30 October 2025 • 2 min read
GB Energy: Expanded solar rollout to save NHS trusts estimated £65m

GB Energy: Expanded solar rollout to save NHS trusts estimated £65m

Solar scheme's latest phase to enable tens of millions of pounds to be reinvested in frontline services at more than 70 NHS sites, government says

Stuart Stone
clock 24 October 2025 • 4 min read
Alick Dru: 'Subsidies can be useful to spark adoption, but they're not a long-term business model'

Alick Dru: 'Subsidies can be useful to spark adoption, but they're not a long-term business model'

Sunsave CEO and co-founder discusses how today's energy market is like the financial sector of the early 2010s

Stuart Stone
clock 21 October 2025 • 5 min read