Voltage Optimisation

Discover how Powerhub Solutions can help your business save on your electricity bills through tailored voltage management solutions.

  • Quick ROI: See tangible savings in months, not years.

  • Cut electricity waste and save up to 8 – 14%.

  • Reduce energy consumption and emissions.
Voltage Optimisation Machine

Optimised Voltage, Optimised Business

With energy prices continuing to rise and sustainability targets becoming more demanding, every unit of electricity counts. Powerhub Solutions’ Voltage Optimisation technology ensures your equipment operates at the correct voltage levels by optimising incoming supply within the statutory voltage range, reducing unnecessary energy use and extending equipment lifespan. The result is lower electricity bills, and the lower voltage can reduce electricity consumption, deliver lower carbon emissions and support net zero goals across your site.

Reduced Energy Costs

Implementing voltage optimisation can lead to energy savings of up to 8 -14%, directly decreasing your electricity expenses.

Improve Equipment Lifespan

Operating equipment at appropriate voltage levels minimises wear and tear and reduces replacement costs.

Improved Power Quality

Voltage optimisation stabilises your power supply, protecting sensitive equipment from voltage fluctuations.

delivering measurable energy savings for our clients through voltage Optimisation

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Over 124.5 million kWh saved, cutting costs and supporting sustainable operations.
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With our partners and clients, we’ve saved over 40,000 tonnes of CO2 for a greener future.
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Our technology delivers rapid payback, with clients seeing full ROI in 12 to 18 months.

Save Energy, Achieve Energy Savings, Save Money

Powerhub Solutions helps businesses cut energy costs, unlock financial savings, and reduce carbon emissions with smart commercial energy-saving solutions.

What is Voltage optimisation?

Infographic showing how voltage optimisation works by reducing supply from 242V to 220V to save energy and lower bills

How does it work to reduce carbon emissions…

Voltage Optimisation (VO) is a proven energy-saving technology that uses voltage reduction to lower power consumption in voltage dependent equipment, improving efficiency and cutting energy waste, backed by UK energy reduction specialists Powerhub Solutions.

Most electrical equipment is designed to operate around a nominal voltage, but in the UK the National Grid commonly delivers a supply voltage of around 242V to 245V, creating excess voltage above what much equipment needs. That overvoltage can overpower equipment, generate unwanted heat, shorten lifespan, and mean sites are wasting energy.

It can also increase energy consumption by almost 9%, which is why many businesses use a voltage optimisation savings calculator to quantify potential reductions.

In simple terms, voltage optimisation work by adjusting the incoming electrical supply from the main supply to a more suitable level for the site’s power demand and equipment, rather than changing equipment performance needs. Voltage optimisation is most effective where the incoming supply voltage is consistently high, and savings depend on the type of equipment, load profile, and voltage levels.

If you’re ready to see what voltage optimisation could save your site, our voltage optimisation service is designed around exactly this.

our Voltage Solutions:

Voltage Optimisation

What it does: Reduces excess mains voltage across your site so equipment runs at its most efficient level, no loss of performance, less wasted kWh, less heat, longer asset life.

Where it fits: Incoming Supply Room

Why Powerhub: Correctly sized, correctly set.

  • Data led baseline → install → post validation. Self delivered installs keep quality high and cost low.
  • If you have a quote we will beat it by 15% minimum Guaranteed!
  • Only company to self install Voltage Optimisation nationwide
  • Unique transparency in savings with real time monitoring
  • The VO unit shows that average energy savings vary by load profile.
Voltage Stabilisation

What it does: Holds your output at stable voltage levels (e.g., 220–230 V) when the grid fluctuates, protecting sensitive loads and electronic systems, smoothing power quality, and keeping savings consistent, ultimately saving energy in energy-intensive manufacturing environments.

When to choose: If your supply often swings (even within the statutory range), stabilisation preserves efficiency and uptime while supporting equipment life and an extended equipment lifespan.

At a glance:

Voltage Regulation

What it does: Actively regulates to the optimum level in real time, ideal for sites with variable demand or frequent voltage drift.

Why it matters: Keeps equipment in the sweet spot all day, supporting both energy efficiency and resilience.

At a glance:

  • Dynamic adjustment in small increments
  • Works alongside existing switchgear and monitoring

Better control of power factor and total power can also support overall system performance where relevant, especially when it’s part of a structured end-to-end energy reduction process.

 

Voltage Optimisation in 3 simple steps

Powerhub Solutions energy consultant discussing voltage optimisation savings with a customer
1. Discovery

Find out what you could save:
Think you might be overpaying on energy? We analyse your energy data, including energy usage and maximum demand, to estimate your potential savings, which is particularly valuable for sites like restaurants looking for practical energy-saving tips for kitchens and dining areas. All we need are three simple pieces of information from your energy supplier, send them via our online form, and we’ll show you exactly how much you could save on energy bills and the financial return on investment upfront.

Powerhub Solutions engineer conducting a voltage optimisation site survey with tablet
2. Site Survey

Confirming before you commit:
If you’re happy with the estimated savings and want to move forward, the next step is a detailed site survey. Our team will visit your commercial premises to verify the projected savings, assess installation requirements, and confirm the final installation cost, including whether key loads are voltage independent loads or suitable for optimisation. If Voltage Optimisation isn’t the right fit for your business, we’ll be upfront about it, some constant power loads offer less scope for savings, and suggest other energy-saving solutions.

Powerhub Solutions voltage optimisation unit installed in outdoor cabinet showing digital display panel
3. Installation

Quick, hassle-free, and done right:
We know your business can’t afford downtime, so our expert engineers handle everything smoothly, working outside business hours to keep disruption to a minimum. The final switch-over? Just two to four hours to install the VO device and bring your site safely onto a lower voltage, and you’re up and running! It’s also designed to help protect equipment against overheating and premature failure while delivering immediate savings.

Voltage Optimisation Case Studies:

Latest Videos:

Powerhub Solutions team members collaborating on energy reduction projects
Get in touch:

Mon-Fri 08:30 AM – 06:00 PM
E: Enquiries@powerhub.solutions
P: 01613274036

Our Offices

HQ:
The Tannery, Water St,
Stockport, SK1 2BP

LDN:
81 Rivington Street, London,
EC2A 3AY