Rapid and ultra-rapid chargers draw hard and briefly, exactly the kind of spike that pushes a site past its agreed capacity and triggers an expensive DNO upgrade. For a fleet depot, forecourt, or destination car park, that upgrade is often the difference between a viable charging plan and a stalled one.
How ev-charging hub buffering saves a business money
A battery sits between the grid and the chargers, charging off-peak and from on-site solar, then discharging into the charging peaks. That caps the site’s import, lets more chargers run on the existing connection, and shifts charging energy into cheaper periods. We design the storage and charging infrastructure together.
We build the case for ev-charging hub buffering on controllable savings, cutting the red DUoS band, trimming demand and capacity charges, and lifting solar self-consumption where panels exist, rather than on volatile grid-services income, which we count only as a bonus. Every figure comes from your half-hourly data and is shared in full.
What this looks like on your site
- Buffers rapid and ultra-rapid charger spikes that would otherwise trigger an expensive grid upgrade
- Charges off-peak and from on-site solar, discharges into charging peaks
- Fits more chargers onto a constrained connection, deployed far faster than DNO reinforcement
- Suits fleet depots, retail forecourts, and destination charging
Who it suits
Fleet and van depots, retail forecourts, and destination charging where charger demand spikes would otherwise force a grid reinforcement.
Typical ev-charging hub buffering system
| Power / capacity | 100 kW / 200 kWh - 1 MW / 2 MWh |
| Project value | £110,000-£1.3m |
| Payback | 7 years |
| Annual CO₂ saved | varies tonnes |
| Capital allowances | 100% AIA to £1m, then 50% FYA |
Indicative. Your figure is modelled from twelve months of half-hourly meter data. See cost and payback by size.
Compliance and safety
G99/G100 for the storage asset and combined site import/export; charger installation to BS 7671 and OZEV scheme rules where grant-funded. Fire separation between battery enclosure and charging bays per insurer and NFCC guidance.
Every system is designed to PAS 63100:2024 fire-safety principles with lithium-iron-phosphate (LFP) cells, BS EN 62619 cell safety, and BS EN/IEC 62933 system safety, with your insurer engaged up front.
No obligation, no phone hard-sell
There is no obligation and no phone hard-sell. We model the payback for ev-charging hub buffering from your own data, quote a fixed price in writing, and stand behind the work with a 10-year insurance-backed warranty from MCS-certified, NICEIC-registered engineers. Where the case does not stack up, we tell you plainly.
Common objection we hear: battery payback is always ten years. It is not, for the right profile it is six to eight, and we prove it from your own data or walk away. See the battery storage myths we debunk, or read whether commercial battery storage is worth it.
Get a free ev-charging hub buffering feasibility
Responds within one working day
- 1. Free desk feasibility from your meter data and roof, no obligation.
- 2. Site survey and a fixed-price proposal, itemised in writing.
- 3. Install and aftercare by MCS-certified engineers.
- MCS Certified
- NICEIC
- RECC
- TrustMark
Common questions
How much does battery storage for a business cost in the UK?
As a 2026 rule of thumb, fully installed commercial battery storage lands at roughly £400-£700 per kWh of usable capacity for behind-the-meter systems, falling toward £250-£400/kWh at multi-MWh scale. A typical 250 kW / 500 kWh peak-shaving system is around £150,000-£300,000; a 100 kW / 200 kWh resilience system around £75,000-£140,000; a 1 MW / 2 MWh system £600,000-£1.2m. Cost turns on the power-to-energy ratio, chemistry, switchgear, and any grid-connection works. Qualifying plant attracts 100% AIA on the first £1m and a 50% first-year allowance on the balance.
What payback should a business expect on battery storage?
For behind-the-meter systems doing peak shaving and solar self-consumption, simple payback in 2026 typically falls between six and eight years, faster where red-band DUoS exposure or solar surplus is high. We build the number from your half-hourly meter data and share the full spreadsheet so your finance team can stress-test it. We treat any frequency-response or Balancing Mechanism income as upside, not the foundation of the case.
How is a business battery maintained, and what does it cost to run?
Through a planned O&M contract: remote 24/7 monitoring with automated alerts, periodic electrical inspection, firmware updates, thermal-management checks, and cell-balancing oversight through the battery management system. Most clients sign a ten-year-plus O&M agreement aligned to the cell warranty. Software-led optimisation, choosing when to charge and discharge against tariffs and DUoS bands, is usually included so the system keeps capturing maximum value as prices move.