What is voltage optimisation?

Voltage optimisation is a proven and smart way to reduce your energy bills by managing the electrical power in your workplace or home more efficiently.

The principle behind voltage optimisation is fairly simple. In the UK, the electricity power infrastructure was developed to operate at 240v and so deliver supply over large distances and avoid outages, particularly at periods of peak demand.

voltage optimisation chart

However, electrical appliances complying with European Union legislation to qualify for the CE mark will operate through a broad range of voltage – from 207-253 Volts – as many EU countries operate at a lower supply voltage.

This means that much electrical equipment will be consuming more energy than is strictly necessary and also running less efficiently.

Energy wasted

Voltage optimisers reduce incoming supply voltage to the most effective level, matching most closely the needs of differing types of equipment to reduce the amount of energy wasted.

This means immediate and ongoing reduction in electricity costs as well as a reduction in CO2 emissions, with a positive effect on the environment.

Reducing voltage also helps to extend equipment working life. Higher voltage usually means greater heat and/or vibration, which adds to wear and tear on appliances.

Voltage optimisers will intelligently monitor and “throttle back” on the supply, which can be rated as high as 245v in some cases, and hit the sweet spot of maximum efficiency at 220v.

Installation of the voltage optimiser units is straightforward and can be easily completed by a qualified electrician and there are a range of solutions that meet needs of businesses, organisations and homes.

Technical surveys

For homes and many small to medium-sized businesses and organisations, there are very effective “off-the-shelf” solutions available that minimise outlay while providing quickest return on investment.

Larger businesses and organisations benefit from bespoke solutions, with detailed technical surveys helping to scope out specific requirements. The aim at all times should be to optimise supply to those areas and equipment that will give best returns.

The level of savings achieved does vary and in most cases, efficiencies of between 10-15% are usual but in some instances, like heavy duty traditional lighting, the gains are far greater.

There is a balance to be found and generally, energy savings on lighting can be maximised through installation of LEDs. If this is not possible, then voltage optimisation is the ideal solution.

For businesses, there is an additional bonus with voltage optimisation. The technology is identified by Government as part of the Energy Technology List and so allows companies to offset 100% of the plant and machinery costs against tax on profits in a single year under the Enhanced Capital Allowance scheme.

Find out more about voltage optimisation and our range of solutions: Voltage Optimisation

voltage optimiser savings



Sign up to receive tips on reducing your energy & water bills, new product news & more.