VOLTASOLUTIONS
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Voltage optimisation for UK estates

Stop paying for wasted electric.

Most UK sites receive 242 V from the grid, but CE marked commercial equipment operates best at 220–230 V. A Volta unit sits in series with your incoming supply and trims it to what your equipment actually needs, cutting consumption, bills, and wear.

Request a site savings estimate See how it works

Or call +44 7912 884 349

242 V220 V

The gap between what your grid delivers and what your equipment operates best at.

UK average supply: 242 V. CE equipment optimal range: 220-230 V.

7-12 %

Typical annual electricity saving on suitable sites after voltage optimisation.

Your site-specific range is confirmed by survey.

up to 46 %

Longer equipment life. Running at 240 V+ can decrease lifespan by up to 46% (BS7671).

Per BS7671 UK Wiring Regulations.

Trusted across UK estates

  • Mitchells & Butlers
  • Hilton
  • Pizza Express
  • Marriott
  • Harvester
  • Kellogg's
  • Holiday Inn
  • Betfred
  • Viridor
  • NHS
  • National Trust
  • ScotRail
  • Kinnerton

Is your site a fit?

Not every site is a fit. That's why we survey first.

Your site is likely a fit if:

  • Your incoming supply typically runs above 235 V
  • Electrical load is active ≥12 hours a day
  • You run significant motors, compressors, lifts, or lighting
  • Annual electricity spend is over £50,000

What we do before quoting

Before we propose a unit, we carry out a site survey covering your half-hourly consumption data, monthly energy bills, and an on-site voltage dependency assessment. If the numbers don't justify a VO install, we'll tell you.

Most sites save. Not all sites save enough to bother.

The physics

Why 240 V costs you money.

The average UK grid supply is 242 V, roughly 10% higher than your equipment needs. That is legal and stable, but it is more than your equipment is designed for.

All commercial equipment sold in the UK must be CE marked and operates best at 220-230 V. When you feed that equipment with 242 V, the excess becomes heat and accelerated wear, and you pay for it on your bill.

A voltage optimiser sits in series with your incoming supply and brings the voltage down to the optimal operating range. No controls to learn. No software. No change to the kit on your side of the meter.

Voltage gap before and after optimisation Two horizontal bars. Upper bar shows a 242 V incoming supply with the section above 220 V highlighted as the region you are paying for. Lower bar shows 220 V after voltage optimisation. Grid supply 242 V you pay for this After voltage optimisation 220 V 0 220 242 V
Illustrative values. We measure yours during survey.

Sectors we work with

Built for UK estates with measurable electricity loads.

How a Volta project runs

Four steps from enquiry to guaranteed saving.

  1. 01

    Survey

    A site visit covering half-hourly consumption data, monthly bill analysis, and on-site voltage dependency assessment.

  2. 02

    Manufacture

    Your unit is custom-built in the UK to match your site's measured load and supply configuration.

  3. 03

    Install

    Our engineers install the unit in series with your incoming supply. Most sites: one visit, minimal downtime.

  4. 04

    Track & Guarantee

    We monitor your savings post-install and guarantee the results. If the promised savings aren't achieved, we make it right.

Engineer-facing detail

Questions your M&E team will ask.

VSDs and BMS
VO sits upstream of your distribution, so downstream controls (BMS, VSDs, soft starters) continue to operate as designed.
Transformer compatibility
Units are available in series or transformer-based configurations, selected to suit your incoming supply and load profile.
Harmonics (THD)
Our units add no measurable harmonic distortion and are tested to EN 61000-3 standards.
Warranty
Standard warranty covers the unit for several years; extended cover is available. Exact terms are confirmed in the proposal.
Measurement & Verification
Pre-install baseline, post-install measurement at the same meter points, reconciled over matched operating periods.

See the full engineering FAQ

Reporting

Voltage optimisation delivers measurable kWh reductions at the meter. Data that supports SECR, ESOS, and net-zero reporting alongside your existing compliance evidence.

  • SECR
  • ESOS
  • Net Zero

Before you call

Estimate your site's savings range.

A quick calculator that converts your annual electricity spend or kWh into a typical savings range. Real numbers are always validated on survey. This gets you to the ballpark before the call.

Try the calculator

Think your site might be a fit?

The easiest way to find out is a site survey. We measure before we quote.

Request a site survey Call +44 7912 884 349