It is important that some products and services are independently evaluated. The UK Government has appointed the research company Ipsos MORI and its approved partners to do this. Evidence from this evaluation will help to inform the development of future policy to support household energy efficiency. Part of the evaluation is to check if the products and services being trialled help you to use less energy (there are six separate projects and each participant will only normally be involved in one). To do this, Ipsos MORI needs to access data on how much energy your household uses. This data is held in your smart meter. If you choose to participate in the trial, Ipsos MORI will access the energy data stored on your smart meter using a service provided by University College London (UCL). Your smart meter data will be used by Ipsos MORI, its approved partners and UCL solely for the purposes of this research study.