Voltage Optimisation and Power Management, With Guaranteed Savings
Voltage optimisation removes the excess voltage you're paying for, while power factor correction stops you being billed for current you waste. Power quality protection extends the life of everything on site, and the savings start from day one.
The UK mains delivers more voltage than your equipment needs, and You pay for all of it.
The UK nominal mains voltage is 230V, but in practice the supply to most commercial buildings arrives between 240V and 250V. Most electrical equipment is engineered to run optimally at around 220 to 225V, and that gap represents wasted energy.
A Powerhub voltage optimisation unit is installed between your incoming mains supply and your distribution board, reducing the supply voltage to the optimal level for your site's load profile. Every piece of electrical equipment downstream immediately operates more efficiently, the savings are permanent, and the unit has a working life of 20 years.
Average kWh reduction across the site, measured before and after installation across our portfolio of 2,000+ installations. Heavier inductive loads typically save at the upper end of this range.
The typical increase in equipment life, since reduced voltage means less heat and less electrical stress on motors, coils and components.
Every kWh saved delivers a direct carbon reduction in your Scope 2 emissions, and all of it is measurable, reportable and independently verifiable.
One discipline, Three technologies and Six solutions.
Not every site has the same problem, so our engineers specify the right solution based on your actual power profile rather than a standard catalogue recommendation.
A fixed ratio transformer unit that steps voltage down to the optimal level, with no moving parts, an operational life of 20 years and savings from day one.
Incorporates a boost capability to maintain a consistent optimised output voltage even when the incoming supply dips.
Space-efficient unit for single-phase supplies and limited panel space. Same 20-year life and the same guaranteed savings.
Full automatic voltage management with continuous monitoring and real-time auto-tap-changing.
Compensates for reactive power and eliminates maximum demand and reactive energy charges from your bill.
Passive or active harmonic filters to bring Total Harmonic Distortion within acceptable limits.
Industrial precision. Engineered to last.
The numbers behind our guarantee.
Real, measurable energy savings. Verified by data, not estimates.
Proven results across sectors.
HospitalityNational Pub Chain
Rolled out across 340 managed pubs. Refrigeration and cellar cooling showed the highest response. Verified through Powerhub Pulse.
ManufacturingFood Processing Plant
Heavy inductive motor load responded exceptionally well. Payback achieved in 14 months.
RetailMulti-Site Retailer
HVAC and lighting loads across the estate. Savings verified through independent M&V reports.
HospitalityHotel Group
VO deployed across 6 hotel sites in Coventry, Stratford, Winchester, Bath and Chester. Over 232,000 kWh saved annually with 48 tonnes of CO₂ cut per year.
Student HousingStudent Housing
VO deployed across 14 student residences in Manchester, Edinburgh, York, Southampton, Newcastle, Glasgow, Birmingham and Leeds. Over 695,000 kWh saved annually with 144 tonnes of CO₂ cut per year.
Leisure & SportGym Chain Roll Out
VO deployed across 208 gym locations. Lighting, HVAC and fitness equipment all responded strongly. Over 2.7 million kWh saved annually with 571 tonnes of CO₂ cut per year.
See case studies from your industry — or book a 30-min demo.
We'll show you real results from sites like yours and a guaranteed savings estimate.
From enquiry
to saving money
in weeks, not months.
No drawn-out scoping. No multi-stage consultancy. Send your half-hourly data and we'll return a guaranteed savings proposal within 24 hours.

We work across virtually every industry. Book a free call and Alex will tell you exactly what's achievable for your site.
Request your initial savings report.
It starts with a free Initial Savings Report built from your own data. If the numbers stack up, a site survey turns that estimate into a fully guaranteed proposal.
Backed by our written savings guarantee
The guarantee covers kWh energy savings verified against your baseline (financial savings depend on your electricity tariff). Full terms and conditions are issued with your proposal. Report examples shown are illustrative and use fictional client names.
Let's build your Savings Report.
Send us a few details and we'll be in touch within one working day. We use your data only to prepare your report, nothing more.
Your report is ready within one working day. No cost, no obligation, no commitment.
Frequently Asked Questions
Everything UK businesses ask us before switching on voltage optimisation. Savings, safety, installation and ROI.
Still have questions? We're happy to help.






























































