Low carbon heating at A1 Housing

A1 housingE.ON’s Sustainable Energy business is working with A1 Housing Bassetlaw Ltd to provide affordable, low carbon heating systems to over 150 homes across Worksop. 

The energy company has installed 146 ground source1 and 12 air source2 heat pumps to replace less efficient heating systems which were powered by coal, electricity or oil. 

A1's green ambition, together with E.ON Sustainable Energy’s expertise, will bring more affordable and sustainable heating to hundreds of residents. The GSHP’s alone bring potential cost savings of up to 66 per cent and carbon savings of up to 73 per cent3

Local resident June Pettinger, had her electric storage heaters replaced by a HeatPlant 5kW ground source heat pump at the back of her property and is already noticing the difference. “I’m delighted with the extra space I now have and the continuous heat, particularly at night when the storage heaters did not provide any heat,” she said. 

Michael Woodhead, Manager Director of E.ON’s Sustainable Energy business, said: “We’re delighted to have been able to provide residents in Worksop with cleaner, greener heating systems and as a result people have seen a real difference in such a short period of time. 

“We’re committed to rolling out more efficient systems of heating and power generation which, while it does mean that people will use less of E.ON’s products, are very much the future of the energy industry in the UK, and it’s great news that Nottinghamshire – and Worksop – can lead the way in that.” 


Gary Spooner, Decent Homes Manager of A1 Housing Bassetlaw Ltd, said: “Due to the Bassetlaw District Council’s carbon reduction targets and our own aspiration to provide low carbon affordable heating systems for our residents we embarked on this large heating replacement scheme. We have received very positive feedback from our residents and are extremely happy with the installations so far.” 

Margaret Dobson, another resident, had a 5kW Ecodan air source heat pump installed in her award-winning garden. She said: “It’s so nice not to have to make a fire every morning and, although the heat pump is in my garden, the work has been very neatly done and I’ve already got plans to make it blend in with appropriate planting.” 



1 Ground source heat pumps work by extracting thermal energy from below the surface of the ground to provide both heating and hot water. Bore holes are drilled to approximately 80 to 100 metres where the temperature stays constant year round. The thermal energy is pumped to the surface, concentrated by the heat pump and then distributed through the home via traditional radiators and hot water cylinders. The heat energy released at by the heat pump is greater than the electrical energy required to operate the ASHP. This makes a ground source heat pump a very efficient means of heating both space and water. 


2 Air source heat pumps work by extracting thermal energy from the air and concentrating it before transferring it into water to supply heat and hot water into a building. The heat energy released at by the heat pump is greater than the electrical energy required to operate the ASHP. This makes an air source heat pump a very efficient means of heating both space and water. 


3 Anticipated cost and carbon savings for A1 Housing Bassetlaw Ltd residents – based on a mixture of HeatPlant 35, 50 and 65 ground source heat pump systems displacing a mixture electric, heating oil or coal fuelled properties with 2000 full load equivalent (FLE) of operating hours per year. SPF assumed based upon a manufacturers performance curves (CoP @ B3W45.) Emission Factors based on SAP2005 values. Assumed gas boiler efficiency of 80%;oil boiler efficiency of 70% and coal system efficiency of 60%.