Voltage Optimisation

Reduce energy costs, improve electrical efficiency and protect your equipment

What is voltage optimisation?

Voltage optimisation is an energy-efficiency technology that manages the voltage supplied to a building’s electrical equipment.

Electricity enters a property through the incoming supply. A voltage optimisation unit is installed between that incoming supply and the electrical loads within the building. The unit reduces or stabilises the incoming voltage before electricity is distributed to appliances, machinery, lighting and other equipment.

Reduce your electricity costs with a carefully specified voltage optimisation system that manages excess incoming voltage, improves energy efficiency and supports the long-term performance of your electrical equipment.

Control Your Voltage

Reduce energy costs, improve electrical efficiency and protect your equipment

Many homes, businesses and industrial premises receive electricity at a higher voltage than their equipment actually needs. Although appliances and electrical systems are designed to operate across a range of voltages, supplying more voltage than necessary can increase electricity consumption, place additional stress on equipment and contribute to avoidable energy waste.

Dorset Electrical Solutions provides professional voltage optimisation services for residential, commercial and industrial properties. We assess the voltage entering your premises, examine how your electrical equipment operates and recommend a solution designed around your actual energy usage.

A correctly specified voltage optimisation system can help reduce electricity consumption, lower energy bills, improve power quality and extend the working life of suitable electrical equipment. Depending on the site, voltage profile and connected loads, energy savings of up to 16% may be achievable. However, every property is different, so all potential savings must be confirmed through assessment, voltage logging and a detailed proposal.

Whether you operate a commercial building, factory, hotel, retail premises, office, warehouse or larger residential property, Dorset Electrical Solutions can help you understand whether voltage optimisation is suitable for your site.

The Dorset Electrical Solutions project process

1. Initial data review

We begin by reviewing the information already available about your site.

This may include up to 12 months of electricity bills, half-hourly consumption data, site operating hours and details of your electrical equipment.

The purpose of this stage is to establish whether the site appears to have realistic voltage optimisation potential.

2. Desktop proposal

Using the available information, we prepare an initial assessment.

This may include estimated electricity savings, possible financial savings, indicative carbon reduction and an outline return on investment.

These figures remain subject to confirmation through a site survey and voltage monitoring.

3. Technical survey

A qualified engineer visits the property to assess the electrical installation. The survey considers:

The incoming electrical supply.
Switchgear and distribution equipment.
Available installation space.
Cable routes.
Maximum demand.
Electrical loads.
Access and working conditions.
Operational restrictions.
Possible installation risks.

4. Voltage logging

Voltage logging records how the incoming supply changes over time. It can also provide information about maximum demand and operating patterns.

A single voltage reading does not provide enough information for many larger projects. Logging allows us to see whether voltage is consistently high, temporarily high or highly variable.

This helps determine whether a fixed or automatic voltage optimisation solution is more appropriate.

5. Installation and setup

Once the design and proposal have been agreed, Dorset Electrical Solutions installs the selected system.

The installation is planned to minimise disruption. For commercial and industrial properties, this may involve coordinating work around shutdown periods or quieter operational hours.

The system is then configured and tested before being placed into service.

6. Verification and maintenance

Following installation, we can monitor system performance and compare energy use against the original baseline.

This helps establish whether expected savings are being achieved and whether any adjustments are required.

Ongoing support and maintenance can then be provided according to the needs of the property.

Is voltage optimisation suitable for every property?

Voltage optimisation can provide worthwhile savings, but it is not suitable for every site.

The potential benefit depends on several factors, including:

The average incoming voltage.
The type of equipment being used.
The proportion of voltage-dependent loads.
Existing energy-efficiency measures.
The consistency of site operations.
Maximum electrical demand.
The condition of the electrical installation.
The required voltage range of sensitive equipment.
Installation and maintenance costs.

For example, a property with relatively low incoming voltage may have limited opportunity for voltage reduction. A site dominated by equipment that regulates its own electrical input may also experience smaller savings.

The only responsible way to establish suitability is through proper assessment.

Dorset Electrical Solutions will explain both the opportunities and the limitations identified at your premises. We will not recommend a voltage optimisation system unless there is a reasonable technical and commercial case for doing so.

Upgrade your electrical supply with a professionally designed voltage optimisation system that can reduce unnecessary energy consumption, lower running costs and help protect valuable equipment from the effects of excessive incoming voltage.

Why choose us?

Over 20 Years Experience

We have more than 20 years experience servicing customers throughout Dorset, Hampshire and Wiltshire. We pride ourselves on being a friendly, honest and dependable company that you can trust, and we have numerous reviews from satisfied customers to back this up.

We only use the best equipment

We’ve invested heavily in advanced equipment and machinery that ensures we can do the most thorough and professional job possible when it comes to all kinds of electrical and related work.

We're full qualified and certified

We currently employ a team of fully qualified electricians and a number of apprentices. We have been registered with the ECA and therefore all our electricians are JIB registered.

Our accreditations

Related services & areas we cover

Voltage optimisation is a great partner to solar PV and battery storage for cutting energy costs, and is part of our commercial and industrial electrical services. We assess and install for sites across Dorset, including Poole, Bournemouth and the surrounding towns.

Voltage optimisation FAQs

What is voltage optimisation?

The UK grid often supplies electricity at a higher voltage than most equipment actually needs. A voltage optimiser reduces and stabilises the incoming supply to a more efficient level, cutting energy use, heat and wear on equipment without affecting performance.

How much can voltage optimisation save?

It varies by site, but many commercial premises see savings in the region of 5–15% on their electricity, depending on their supply voltage and the type of equipment they run. We carry out an assessment first so any projection is realistic.

Is voltage optimisation right for my premises?

It works best where there’s a lot of always-on equipment — lighting, motors, HVAC, refrigeration — and where the incoming voltage is high. We survey your supply and load before recommending it, so you only invest if it stacks up.

Does it work alongside solar and battery storage?

Yes — voltage optimisation complements solar PV and battery storage, all reducing what you draw from the grid. We can design a combined energy-saving package.

Do you install and maintain the equipment?

We do — we handle the survey, installation and commissioning, and can maintain the system to keep it performing as intended.

What our customers say about our work

Very happy with the service provided by this company, very efficient and knowledgeable.

Ben Webster

Google Review

From first contact, through quoting and adjustments thereto to completion of the works I have nothing but praise for DES Ltd. They communicate clearly, are practical, hard working and work to high standards. I recommend them highly.

Nicholas Knollys

Google Review

My experience with Dorset Electricial Solutions was friendly, professional and great attention to detail was shown at all stages of the job. I was really impressed with how efficiently but also how quickly the work was carried out. Thank you so much, I'm delighted!

Voltage Optimisation

Reduce energy costs, improve electrical efficiency and protect your equipment

What is voltage optimisation?

Reduce your electricity costs with a carefully specified voltage optimisation system that manages excess incoming voltage, improves energy efficiency and supports the long-term performance of your electrical equipment.

Control Your Voltage

Reduce energy costs, improve electrical efficiency and protect your equipment

The Dorset Electrical Solutions project process

1. Initial data review

2. Desktop proposal

3. Technical survey

4. Voltage logging

5. Installation and setup

6. Verification and maintenance

Is voltage optimisation suitable for every property?

Upgrade your electrical supply with a professionally designed voltage optimisation system that can reduce unnecessary energy consumption, lower running costs and help protect valuable equipment from the effects of excessive incoming voltage.

Why choose us?

Over 20 Years Experience

We only use the best equipment

We're full qualified and certified

Our accreditations

Related services & areas we cover

Voltage optimisation FAQs

What is voltage optimisation?

How much can voltage optimisation save?

Is voltage optimisation right for my premises?

Does it work alongside solar and battery storage?

Do you install and maintain the equipment?

What our customers say about our work

Very happy with the service provided by this company, very efficient and knowledgeable.

Ben Webster

Google Review

From first contact, through quoting and adjustments thereto to completion of the works I have nothing but praise for DES Ltd. They communicate clearly, are practical, hard working and work to high standards. I recommend them highly.

Nicholas Knollys

Google Review

My experience with Dorset Electricial Solutions was friendly, professional and great attention to detail was shown at all stages of the job. I was really impressed with how efficiently but also how quickly the work was carried out. Thank you so much, I'm delighted!

Ruth Willis

Google Review

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