This report focuses on the performance of two Wondrwall installations and compares them with a control property with solar PV and infrared heating panels.

The ‘Evaluating solar PV with electric heating’ project installed 18 solar PV systems and 11 Mixergy smart hot water cylinders in socially rented homes. The Mixergy cylinders all had solar diverters which could use excess solar PV generation to power the immersion heater for free.

The ‘Evaluating solar PV with electric heating’ project installed solar PV systems in properties with air-source heat pumps (ASHP), infrared heating panels and electric storage heaters with and without battery storage.

The ‘Evaluating solar PV with electric heating’ project assessed the benefits of installing solar PV systems in social housing with different types of electric heating. The properties had a mix of air-source heat pumps (ASHP), infrared heating panels and electric storage heaters with and without battery storage.

‘Making heat cheaper, smarter and greener’ was an Energy Industry Voluntary Redress Scheme Innovation project.

This project will install Tesla Powerwall 2 batteries in all-electric, storage heated properties in North Devon using an Economy 7 tariff type.

There are about 42,074 households in North Devon and the proportion of fuel poor households is estimated to be 11.6%. According to the Non-gas map, 47.1% of properties in North Devon are off the gas grid. North Devon Homes Ltd is the main social landlord in the area and rents 3,221 homes. Out of these, 623 are off the gas grid and likely to be on Economy 7 electricity tariffs. About 7,000 households in North Devon have Economy 7 meters.

This project installed three different combinations of technologies to 65 all-electric sheltered accommodation flats in Grimsby, Lincolnshire:

The project was led by Cheshire East Council.