Turning green grass to green gas in Hampshire
Hampshire-based Sparsholt College is teaming up with Ecotricity, to develop and build the Green Gas Mill, which will turn grass into green gas to supply both the college and the national gas grid.
The college will use the Centre of Excellence to train more specialist professionals for the rapidly growing sector of Green Gas generation – the alternative to fracking in Britain.
The Green Gas Mills will make gas from grass – sourced from marginal land on farms in the local area – using anaerobic digestion to produce biogas that is purified into biomethane that’s used first by the college, with the leftover fed straight into the national grid. While a natural fertiliser that’s a by-product of the AD process will go back onto the farmers' fields to improve the soil.
National Grid forecasts that efficiencies in domestic and commercial gas use will need to reduce consumption by a quarter from 557TWh to 416TWh by 2035 to meet legally-binding climate change targets. The UK could theoretically meet 95 per cent of that consumption through making Green Gas from grass based on each AD plant producing 78.84GWh of gas per year from 1,670 ha of grassland.
Tim Jackson, Sparsholt College principal, said: “It’s an exciting time for the college in developing our status as a ‘Centre for Demonstration of Environmental Technologies’, which is being supported by Ecotricity and through a grant from the Enterprise M3 Local Enterprise Partnership.
“We’re already significantly expanding our rooftop solar panel array, we’ve submitted a planning application for a wind turbine; we are intending to expand our wood fuel technologies – and we’re now putting ourselves at the centreof what is the future of gas generation in Britain.
“The Centre of Excellence will be a key resource to develop specialist professionals to work for the green gas industry, training engineers, plant managers and technicians in what is a jobs growth area across the agriculture, energy, waste, water and food processing sectors.”
The Sparsholt College Green Gas Mill, fuelled by locally harvested grass, could produce enough clean gas to power the equivalent of almost 5,000 homes every year.
Ecotricity founder Dale Vince said: “We introduced the concept of making gas from grass in April, and the Sparsholt Green Gas Mill will be one of the first four we’ll be putting into planning this year.
“It’s a very exciting new concept – green gas is carbon neutral, it supports food production, it’s sustainable, and it actually benefits wildlife and the local environment, creating new habitats.
“We’re even more excited to be teaming up with Sparsholt, helping to train the new generation of green gas engineers.”
The project will also enable a new gas connection that will allow local residents to get cheaper ‘mains gas’ for the first time.
Dale continued: “Green gas is big opportunity for Britain – it can make a big contribution to reducing carbon emissions and making us more energy independent.”
