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Voltage Optimisation Finance

You have been quoted for a voltage optimisation unit. That is a good place to be.


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You Already Know It Works

Voltage optimisation is one of the more straightforward energy efficiency measures available to commercial buildings. The technology is well established, the savings are measurable, and the payback case is usually clear. 

If your energy consultant or installer has run the numbers and presented you with a proposal, you are already past the hardest part. Most businesses that reach this point have seen their electricity bills and noticed that the incoming supply voltage is consistently higher than the equipment actually needs. 

A voltage optimisation unit sits between the incoming supply and your distribution board, reducing voltage to a level that your equipment runs on efficiently. The result is lower energy consumption across the whole building, reduced wear on motors and equipment, and a measurable reduction in your electricity costs.Your installer understands the technology. 

We understand how to fund it.

Finance That Fits the PaybackPart of a Wider ProgrammeWho We Work WithLet's Get This Project Moving

Finance That Fits the Payback

Voltage optimisation projects are well suited to asset finance. Your installer will already have presented the case to you, along with the expected figures, and will also have talked you through the limitations of the technology.

Our role is not to question the physics or calculations, but to build a financial model that fits your expectations. This means working with you to keep expectations realistic and to structure repayments and projected savings as closely aligned as reasonably possible.

We want to understand the projected savings, the size of the unit, and the type of building it is being installed into. From there, we structure a funding facility where the repayments sit comfortably within the savings the project is expected to generate.

You do not need to find large upfront capital or restructure existing facilities. The aim is to help the project move forward using the savings it is expected to create.

Part of a Wider Programme

Voltage optimisation often sits alongside other energy measures. LED lighting, power factor correction, and HVAC upgrades all benefit from a lower incoming voltage, and many businesses find that a voltage optimisation unit complements work they have already done or are planning to do.

If your project involves more than one technology, we can look at the whole programme within a single funding facility. There is no requirement to fund each measure separately or to go through multiple applications. One conversation can cover the full scope of the work.

That said, if voltage optimisation is the only measure on the table right now, that is a perfectly complete project in its own right.

Who We Work With

We work with UK limited companies that have received a proposal from a qualified installer or energy consultant. We do not require you to have a specific credit rating or to offer property as security, though the specifics of each case will vary.

Your installer stays in place. We do not introduce alternative suppliers or recommend different equipment. 

Our role is to get the project funded so that the work can proceed.

Let's Get This Project Moving

If you have a voltage optimisation proposal and you want to explore funding options, send us the details. We will come back to you with a funding structure that fits the project.

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Frequently asked questions


Most commercial premises in the UK receive electricity at a voltage slightly higher than equipment is designed to run on efficiently. A voltage optimisation unit reduces the incoming voltage to a more suitable level, which typically reduces energy consumption across motors, lighting, heating elements, and other electrical loads. 

The savings come from the whole building running more efficiently, not from any single piece of equipment.

Your installer or energy consultant will have assessed this as part of their proposal. Suitability depends on the incoming supply voltage, the types of equipment in the building, and the load profile. 

Buildings with a high proportion of motors, older lighting, and continuous electrical loads tend to benefit most. 

If you have a proposal in front of you, the suitability assessment has already been done.

In many cases, yes. We structure finance around the projected savings and the strength of the business rather than requiring property security as a default. 

Each case is assessed individually, and the specifics will depend on the project size and the business profile.

We work with projects across a range of sizes. Smaller single-unit installations and larger multi-site programmes can both be considered. 

The key factor is that there is a clear and documented savings case from a qualified installer or energy consultant.

No. Power factor correction equipment operates passively alongside your existing electrical system. It doesn't change how your machinery works or interrupt your supply. Installation typically takes less than a day and can often be done without shutting down operations.

Yes. Voltage optimisation and solar generation address different aspects of energy cost. Solar reduces the amount of electricity you draw from the grid, while voltage optimisation reduces how much energy your equipment uses from whatever source it draws from. 

The two measures can work alongside each other effectively.

Yes. If your project includes other measures such as LED lighting, power factor correction, or HVAC upgrades, we can look at the whole programme within a single funding facility. 

You do not need to fund each measure separately or go through multiple applications.

Voltage optimisation units are passive electrical devices with no moving parts. They are generally considered long-life assets with operational lifespans measured in decades rather than years. 

Your installer will be able to confirm the expected lifespan and any maintenance requirements for the specific unit they have quoted.

A properly specified and installed voltage optimisation unit should not affect equipment warranties. Your installer will have sized the unit to deliver a voltage within the acceptable operating range for your equipment. 

If you have concerns about specific pieces of equipment, this is worth raising with your installer before the project proceeds.

Leased buildings can be considered, though the position of the landlord and the terms of the lease will be relevant factors. Some leases require landlord consent for electrical infrastructure changes. 

Your installer will usually have encountered this situation before and can advise on what is typically required.

Timescales vary depending on the complexity of the project and the information available. Straightforward projects with a clear savings case and complete documentation can often be progressed relatively quickly. 

We will give you a realistic indication of timescales once we have reviewed the project details.

The most useful starting point is the proposal or survey report from your installer or energy consultant. 

This typically includes the projected savings, the specification of the unit, and the installation cost. We will let you know if we need anything further once we have reviewed the initial information.

Yes. This is the approach we take as a starting point. We look at the projected savings from the project and aim to structure repayments so that the project is broadly self-funding from the energy cost reduction. 

The specifics will depend on the project size, the business profile, and the funding structure that best fits the situation.

Discuss a Voltage Optimisation Project

If your project has technical approval but is struggling to secure financial approval, Locataire Capital can help you explore possible funding structures for energy efficiency and transition projects.

Discuss Your Project