Domestic voltage optimization a growing market

  • Written by JM Electrical

The market for domestic voltage optimisation is increasing in the UK, particularly with the combined impact of rising bills, fuel poverty issues and the green agenda. Importantly, the technology has been proven to work both domestically and commercially, and the sector has now grown to include a number of established manufacturers. The advantages of voltage optimisation are clear too; the technology can reduce electrical consumption in the home, save money for tenants and homeowners, cut carbon emissions and extend the life of devices and appliances.


During the early days of establishing the domestic voltage optimisation market there was natural scepticism of a new technology. There is now a growing body of evidence that includes the likes of Ofgem approved CERT studies, social housing volume roll outs and a range of consumer trials and installations are all proving the technology delivers. It is based on the same proven principles of commercial voltage optimisation – ie reducing the voltage supply to an optimum level for lighting and appliances provides energy and financial savings. Commercially, the technology has been available for some years and is widely utilised with organisations such as Tesco, Asda, Defra and the NHS taking advantage of the technology, and even Number 10 Downing Street too.


Voltage optimisation devices are a great option for social housing providers because they provide real tangible opportunities for scale implementation. Installing VPhase voltage optimisation into 1,000 properties for example, could cost around £300,000. Installing the same 1,000 properties with solar PV systems (assuming the roof orientation was suitable), may cost as much as £5 million. All this means is that more properties can benefit from a smaller investment, helping to address fuel poverty for more tenants.