Peak shaving
The battery discharges at your highest-demand periods, trimming the peaks that drive capacity and time-of-use charges and keeping you within your agreed supply capacity.
Commercial battery storage
that cuts demand charges.
Commercial battery systems that store daytime generation, discharge during your most expensive hours and keep critical loads running. Peak shaving, resilience and flexibility income, integrated with new or existing solar.
- PeakShaving at your most expensive hours
- ResilienceBackup for critical loads
- IncomeFlexibility via Axle Energy
- RetrofitWorks with existing solar
Peak shavingFlatten demand peaks and the charges that follow
Tariff optimisationCharge when cheap, use when dear
Energy resilienceContinuity for critical loads
Flexibility incomePaid to support the grid
01. Who this page is for
One battery,
One battery,
four jobs.
Written for finance directors, energy managers and facilities teams at sites with significant electricity demand and a bill that spikes: manufacturers, cold stores, warehouses, data-heavy offices and multi-tenant estates. A commercial battery can do four jobs, and the design decides how much value you get from each.
It shaves peaks by discharging when your demand, and your tariff, are highest. It shifts consumption by charging when electricity is cheap and releasing it when it isn’t. It keeps critical loads running through an interruption. And through a flexibility platform such as Axle Energy, it can earn income by supporting the grid at times of stress.
We model your consumption data to size the battery and choose the control strategy. Then we integrate it with new or existing solar, handle the grid application, install around your operations and maintain it for the life of the asset.
- Manufacturing
- Cold storage
- Warehousing & logistics
- Offices & data-heavy sites
- Multi-tenant estates
- Depots with EV fleets
02. What storage delivers
Getting value from
Getting value from
every cycle.
Tariff optimisation
Charge from solar or from cheap off-peak periods and discharge when import prices are high. Smart tariffs such as Octopus Agile widen the gap.
Explore Octopus AgileResilience & backup
Keep critical loads running through a supply interruption, from IT and security to refrigeration and process lines, with the system designed around what must stay on.
Flexibility income
Through Axle Energy, your battery can be dispatched to support the grid at times of stress, and you are paid for it while keeping control of the asset.
Explore Axle Energy
03. Why Synergy Power
More than a solar installer.
More than a solar installer.
An infrastructure partner.
Modelled on your data
We base battery size and control strategy on your own half-hourly consumption, not a standard cabinet size.
Estimated size · savings · indicative ROIIntegrated design
We design storage, solar, the site supply and any EV charging as one system, and handle the DNO application.
New or existing solarInstalled around operations
RAMS-led delivery sequenced around your operating hours and access.
Operational continuityMaintained for life
Monitoring, planned maintenance and fault response keep the battery available and performing.
Operations & maintenance
04. How it works
From consumption data
From consumption data
to commissioned storage.
Step 01
Free feasibility study
We turn your consumption data and bills into an estimated battery size, savings forecast, carbon reduction estimate and indicative ROI.
No obligationStep 02
Survey & design
Our engineers assess the location, electrical infrastructure, critical loads and grid application, then design the system.
In-house engineersStep 03
Commercial proposal
A business case covering peak shaving, tariff savings, resilience and any flexibility income, with finance routes.
Business caseStep 04
Installation
Battery, controls and integration installed around your operations and commissioned with the solar and site supply.
Around operationsStep 05
Optimisation & O&M
We set the control strategy, switch on monitoring and put a maintenance plan in place for the life of the asset.
Asset management
06. Related commercial solar services
Solar by
Solar by
site type.
07. Free feasibility study
Find out what storage
Find out what storage
would do for your bill.
Share your consumption data and bills. A UK engineer will model the battery size, control strategy and the savings and income it could deliver.
- Estimated system size
- Estimated bill savings
- Carbon reduction estimate
- Indicative payback
08. Battery storage FAQs
Battery storage
Still have a question?0330 043 1047 Battery storage
questions answered.
Do we need solar to benefit from a battery?
No. A battery can charge from cheap off-peak electricity and discharge at peak times without solar. Solar makes the case stronger, and we can add it later.
How big should the battery be?
It depends on the size and timing of your peaks, your tariff and what you want it to do. We size it from your half-hourly data rather than a standard cabinet size.
Can the battery keep us running in a power cut?
We can design the system to back up selected critical loads. Tell us what must stay on and we'll design around it.
What is flexibility income?
Platforms such as Axle Energy dispatch your battery to support the grid at times of stress and pay you for it, while you keep control of the asset and your choice of supplier.
Can a battery reduce our demand charges?
It can. Peak shaving discharges the battery during your highest-demand periods, reducing the peaks behind capacity and time-of-use charges. How much it saves depends on the size and timing of your peaks and your tariff, which we model from your half-hourly data in the feasibility study.
Do we need DNO approval for a commercial battery?
Usually, yes. Batteries and inverters above the G98 limits need a G99 application approved by your Distribution Network Operator before connection, and an export limitation scheme (G100) can help where network capacity is constrained. We prepare and manage the application.
Who maintains the battery once it is installed?
Our operations and maintenance team monitors the system, carries out planned maintenance and responds to faults, so the battery stays available for the jobs it was designed to do.
Is VAT charged on commercial battery storage?
Commercial installations are subject to VAT at 20%, which VAT-registered businesses can normally reclaim. Your accountant should confirm how it applies to your organisation.
Can you add storage to a system another installer fitted?
Yes. We survey the existing solar and electrical infrastructure and integrate storage with it, whoever installed it.
Store it. Shave it.
Earn from it.
A free feasibility study from our UK engineering team: battery size, control strategy, savings forecast and indicative ROI for your site.