Hello and welcome to Gorst Energy – we’ve been providing renewable gas and electricity to Exeter since 2015.

Our Background

We’re an Anaerobic Digestion (AD) facility located on the outskirts of Exeter in Clyst St Mary. We process energy crops, agricultural waste and animal manures to produce biogas which is used to generate renewable electricity or gas. This renewable energy is injected into the gas and electricity grid.

This plant utilises pig manure and sustainable crops supplied by local farmers as its primary feedstock. Using high quality AD technology, the feedstock is broken down to produce biogas and digestate. The digestate is high in nutrients and is a good replacement for artificial fertilisers. This is used on the land that supplies crops to the AD plant and greatly helps the farmers to reduce their greenhouse gasses and carbon footprint.

Gorst is essential in Exeter’s journey towards a more local circular economy. We provide a sustainable solution that supports Exeter’s local businesses and powers our communities.

How we are helping Exeter

Gorst Energy currently provides enough renewable gas to power 2,389 homes and renewable electricity to power 934 homes. This makes us one of the biggest renewable energy generators in the city of Exeter, something we are very proud of.


Number of Exeter homes powered by our gas this year


Total amount of green energy produced in Exeter (kW)


Number of Exeter homes powered by our electricity this year

We’d like to do more

Our facility has the potential to contribute a lot more locally produced green energy by increasing the range of feedstocks available – we’re currently unable to make the best of our potential because of the limited quantity and types of feedstock (ingredients mixed in the process to produce the renewable energy) that we’re allowed to bring to the plant.

We would like to change this and have submitted a planning application that seeks to increase the tonnage and variety of feedstocks we are able to process.

This would enable us to further improve our sustainable output, in line with County and National policies targeted at increasing the production of renewable energy from waste. If successful, we can increase the supply of renewable electricity to 1,570 homes and renewable gas to 3,538.

Existing AD plant With proposed development (cumulative) % increase
Annual output gas (kW) 32,488,650 48,120,870
Average no. of homes supplied 2,389 3,538 48%
Annual electricity output (kW) 3,363,840 5,650,200
Average no. of homes supplied 934 1,570 68%
In addition to the generation of renewable gas and electricity, our plant is also helping to reduce CO2. Gorst Energy currently delivers carbon savings, annually of 3,387 tonnes CO2e. This figure would be doubled to 6,774 tonnes CO2e per year if the proposed feedstock changes are made.
To put these figures into perspective, carbon emission calculations conducted by Exeter University to determine Devon’s carbon footprint estimate that the management of Exeter’s waste emits over 41,000 tonnes CO2e per annum. At 3,387 tonnes CO2e, Gorst Energy delivers a carbon saving equivalent to 8.2% of the carbon emissions associated with managing waste in the City, increasing to 16.4% should we be allowed to make the proposed changes. Against Exeter’s total carbon footprint, Gorst Energy achieves a 0.62% saving in carbon emissions, increasing to 1.2% post expansion.
We are very proud of our contribution to the reduction of greenhouse gasses and provision of renewable energy to Exeter and hope we are able to provide even more homes with green energy in the future.
View Planning Application