Stop Overpaying for Electricity
Most UK businesses receive higher voltage than they need — you're paying for energy you don't use. Voltage optimisation cuts waste, lowers bills, and extends equipment life.
Get Your Free AssessmentWhat is Voltage Optimisation?
A proven energy-saving solution used for over 100 years
The Problem: You're Getting Too Much Voltage
The UK National Grid supplies electricity at an average of 242 volts, often reaching as high as 253 volts. But every CE-marked appliance and piece of equipment in your business is designed to operate optimally at just 220 volts.
This excess voltage means your equipment is constantly being over-supplied with electricity — energy you're paying for but don't need. The result? Higher bills, increased wear on equipment, and unnecessary carbon emissions.
💡 Voltage optimisation acts as a smart regulator between the grid and your equipment, reducing the voltage to the optimal level and guaranteeing immediate savings.
Why Businesses Choose Voltage Optimisation
Real savings with proven technology
Immediate Cost Savings
Reduce electricity bills by up to 19% from day one. Typical savings range from 8-12% depending on your site's voltage levels and equipment types.
Fast Return on Investment
Most businesses see payback in under 2 years, with systems continuing to deliver savings for 15+ years with minimal maintenance.
Extended Equipment Life
Reducing voltage decreases electrical stress and heat, extending the lifespan of motors, lighting, HVAC, and other equipment by up to 46%.
Lower Carbon Footprint
Every kWh saved directly reduces your carbon emissions, helping you meet ESG commitments and sustainability reporting requirements.
Improved Power Quality
Stabilises voltage fluctuations, protecting sensitive equipment and reducing downtime, maintenance costs, and unexpected failures.
Works with Renewables
Fully compatible with solar PV, EV charging, and other green technologies — maximising your overall energy efficiency strategy.
How Voltage Optimisation Works
Simple technology, powerful results
Grid Supply
242V average (up to 253V)
VO System
Reduces & stabilises voltage
Your Equipment
Receives optimal 220V
Result
Lower bills, longer life
A voltage optimiser is installed between the incoming supply and your distribution board. It's a transformer-based technology that continuously monitors and adjusts the voltage, ensuring your equipment receives exactly what it needs — no more, no less. Installation is quick, typically completed in a single day with minimal disruption.
Real Results from UK Businesses
Proven savings across different sectors
Regional Hotel Chain
Annual consumption: under 1 million kWh
With one meter and one VO unit installed, this hotel achieved substantial savings while extending the life of HVAC, kitchen equipment, and lighting systems.
UK Secondary School
3 meters, 3 VO units installed
This school reduced energy costs while improving power quality for IT equipment, lighting, and HVAC systems across multiple buildings.
Save Even More with Coolnomix
Already considering voltage optimisation? Take your energy savings further with Coolnomix — a patented technology that cuts air conditioning and refrigeration costs by up to 30%.
While voltage optimisation tackles your overall electricity supply, Coolnomix specifically targets cooling systems using Optimised Refrigerant Supply (ORS®) technology. It adjusts your cooling system's energy use based on real-time temperature data, so your system only works as hard as it needs to.
Perfect for hotels, restaurants, retail stores, offices, and any business with significant cooling needs. Combine with voltage optimisation for maximum savings.
Learn More About CoolnomixWho Benefits Most?
Voltage optimisation delivers savings across all sectors
Manufacturing & Industrial
High energy users with motors, conveyors, and process equipment. Significant savings on large electrical loads and extended equipment life.
Schools & Universities
Reduce operating costs while protecting IT equipment and meeting sustainability goals. Perfect for multi-building campuses.
Hospitality
Hotels, restaurants, and leisure facilities with HVAC, kitchen equipment, and lighting. Lower bills and improved guest comfort.
Retail & Warehousing
Shops, supermarkets, and distribution centres benefit from reduced lighting costs, refrigeration savings, and lower demand charges.
Offices & Commercial
Protect sensitive IT equipment, reduce HVAC costs, and demonstrate environmental responsibility to clients and staff.
Healthcare
Hospitals, care homes, and medical facilities achieve savings while ensuring stable power for critical equipment.
Getting Started is Simple
From assessment to savings in 3 easy steps
Free Assessment
We analyse your energy usage and voltage levels to calculate potential savings
Professional Installation
Qualified technicians install your system in typically one day with minimal disruption
Immediate Savings
Start reducing bills from day one with ongoing support and monitoring
No upfront cost options available
We offer flexible financing solutions including energy-as-a-service models, allowing you to benefit from savings without capital expenditure. Ask our team about options that suit your business.
Frequently Asked Questions
Will this affect my equipment or operations?
No. All CE-marked equipment is designed to operate at 220V, so reducing from 242V to 220V actually brings your supply closer to the manufacturer's intended level. Your equipment will run more efficiently and last longer. Installation typically takes just one day with minimal downtime.
How much will I actually save?
Savings depend on your current voltage levels and equipment types. Most businesses see 8-12% reductions, with some achieving up to 19%. We provide a detailed assessment with projected savings specific to your site before any commitment.
What's the maintenance requirement?
Voltage optimisation systems are extremely low-maintenance. They're solid-state transformer technology with no moving parts. An annual visual inspection is typically all that's required. Systems are designed to operate reliably for 15+ years.
Can I use this with solar panels or EV chargers?
Yes, absolutely. Voltage optimisation is fully compatible with solar PV systems, EV charging infrastructure, and other renewable technologies. In fact, combining these solutions often maximises your overall energy efficiency and cost savings.
Do I need to replace my existing electrical system?
No. The voltage optimiser is installed between the incoming supply and your distribution board. Your existing electrical infrastructure remains unchanged. This makes installation quick, cost-effective, and minimally disruptive.
How does this help with my ESG and Net Zero goals?
Every kWh saved directly reduces your Scope 2 carbon emissions. Voltage optimisation provides measurable, verifiable carbon reductions that can be included in sustainability reporting, ESG disclosures, and net zero strategies. Plus, extended equipment life reduces embodied carbon from premature replacements.
Ready to Start Saving?
Join thousands of UK businesses already benefiting from voltage optimisation. Get your free assessment today and discover how much you could save.
Get Your Free AssessmentOr call us: 02476 796812