Selling grid quality gas

Jason Fewell, engineering director at Wyke Farms, said: "We chose LPG from Calor to blend with the lower grade biomethane in order to increase the calorific value of the gas. This ensures that that it is the same quality as the local grid gas and means we can claim back under the government’s renewable heat incentive benefits.”

Fewell continues: "Calor came out to us really early on in the project and we went through where the tanks should be sited so we could start planning where the rest of the AD plant would go.”

As a result, two, 5000L over-ground tanks provide a constant supply of LPG to the digestors. The tanks remain the property of Calor, meaning Wyke Farms does not need to invest time or resource in maintenance.  

To make the ordering of gas simple for the customer, the tanks are fitted with Calor’s Think Tank telemetry system, which regularly monitors gas levels via a contents gauge, and alerts the Calor team when the tank requires a top up so a timely delivery can be scheduled. 

Jason concludes: "We chose Calor because of its ability to supply and the fact it provided a telemetry system to ensure that we have a no worry supply of LPG to site.

"The fact that Calor still owns the tanks is great for us too, because it lowers our capital investment.”

The AD plant forms a part of Wyke’s ‘100% Green’ sustainability initiative, which has seen the company invest in other sustainable energy sources including solar arrays, electronic delivery, water recovery and packaging waste reduction as well as sharing knowledge and encouraging suppliers to work in more sustainable ways.