With spiralling energy costs and unprecedented heatwaves, rapid scale up of retrofit has never been more urgent. And, as an industry, we must come together and share learning if this is to be successful.
Which is why we’re excited to be sharing our first performance report – detailing the performance of 69 homes retrofitted using the Energiesprong whole house retrofit model across six UK social housing schemes.
Energiesprong explained
Energiesprong is a revolutionary approach to domestic energy retrofit that has now been applied to 173 properties across nine schemes in the UK, with more to follow in 2022/23. These projects are led by the housing provider and the main contractor, with Energiesprong UK providing technical advice and market development.
The Energiesprong approach aims to fully insulate homes using offsite manufactured wall and roof panels in conjunction with pre-assembled ‘energy pods’ - creating warmer, more desirable places to live that are partly financed by energy and maintenance savings.
In the UK – due to the immaturity of the market – some of these pilot projects have used more traditional technologies and methods of insulation. We are taking the learning from these schemes and sharing widely as the industry gears up to deliver offsite retrofit and energy innovation at scale.
Guaranteed performance is at the heart of the Energiesprong model
One of the innovations that underpins the model is that the contractor (Solution Provider) signs a performance guarantee, ensuring that the in-use energy use and generation are in line with the approved design. The only way to provide this guarantee is to closely monitor the energy consumption and other metrics after the project is complete.
The Performance Guarantee encompasses the following elements (and more) with corresponding, typical, targets defined for each scheme. These targets apply per property across a scheme.
