Battery energy storage for limited grid supply

Unlock more power without waiting for a network upgrade

  • Instant capacity boost

    Add power immediately without waiting for grid upgrades.

  • Cost-effective expansion

    Avoid DNO infrastructure costs and unlock affordable growth.

  • Clean, reliable power

    Replace diesel generators and improve sustainability credentials.

When limited grid capacity holds your business back

When your operations are ready to scale, few things are more frustrating than being told your grid connection has reached its limit. Whether you’re expanding production, installing EV chargers or adding new equipment, network upgrades can take up to four years and cost hundreds of thousands of pounds.

In the meantime, businesses are forced to hire diesel generators, cap output or delay electrification - wasting time, money and opportunity. A battery energy storage system (BESS) for limited grid supply solves this by turning your existing connection into a flexible, high-capacity resource. It stores power when demand is low and releases it when you need it most - unlocking the headroom to grow now instead of waiting for the network to catch up.

How a battery energy storage system solves limited grid supply

A battery energy storage system (BESS) increases your site’s usable power without changing your grid connection. It works by intelligently managing when and how your site draws electricity.

Charge during low demand or off-peak hours
When your equipment is idle or tariffs are low, the system automatically stores electricity from the grid or on-site renewables.

Off-peak energy cost

Low demand

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Battery Energy Storage System

Discharge when demand peaks
As site consumption rises, the BESS releases stored power instantly - giving you additional capacity without breaching your grid limit.

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Site consumption

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Smooth and optimise your load profile
The system balances supply and demand, flattening peaks that trigger penalty charges and avoiding power interruptions caused by grid constraints.

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Monitor and control through smart software
A secure portal lets you track performance, adjust settings and schedule charging around tariff changes - ensuring maximum savings and reliability.

What makes our limited-supply battery energy storage systems different?

With more than 30 years’ experience delivering hybrid and on-grid battery energy storage systems, Energy Solutions helps UK businesses overcome grid restrictions and unlock immediate capacity for growth. Our engineers design, build and support bespoke systems that expand your usable power without the wait or cost of a DNO upgrade. Each project is modelled around your site’s connection limit, load profile and expansion plans, ensuring the system you install today can adapt as your energy needs evolve. From concept to commissioning, every stage is managed by one expert team.

Partnering with Energy Solutions gives you:

  • Turnkey installation

    Survey, groundworks, electrical integration, commissioning and training all handled by our in-house engineers.

  • Built-in flexibility

    Add extra storage units as your operations expand or energy demands increase.

  • Safety-driven design

    Engineered for indoor or outdoor installation, with compact footprint (~1.5 m² per unit) and full risk assessment.

  • Accurate system sizing

    We analyse your grid connection, usage patterns and peak loads to specify the right capacity from the outset.

  • Proven lithium-ion technology

    Long-life, high-efficiency batteries that deliver predictable performance and low maintenance.

  • Smart automation

    Charge and discharge automatically to support demand peaks and maintain supply resilience.

  • Transparent ROI

    Data-driven modelling before installation and measurable savings once live.

  • UK-based expertise

    A trusted partner who monitors, maintains and optimises your system for lasting reliability.

Explore other grid-tied applications

Our EasyGrid grid-tied systems don’t just support limited supply solutions...

Solar self-use

Maximise the value of solar by storing surplus generation for later consumption

Time-of-day usage

Store electricity at night when tariffs are low and use it during the day when grid electricity is at its most expensive.

Who benefits from limited grid battery storage?

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Boatbuilders & marine yards

Power testing, builds and commissioning without grid delays.

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Construction sites

Support new builds where grid connections lag behind.

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Commercial & industrial facilities

Manage heavy machinery or energy-intensive processes.

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Remote or rural properties

Overcome weak or unstable grid supply.

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Events & temporary sites

Deliver consistent energy without grid reinforcement

How we deliver your limited supply BESS

Step 1 - Assess & model

We start with a detailed review of your site’s load profile, grid allowance and growth plans. Using this data, our engineers model how a battery energy storage system (BESS) can increase capacity, reduce demand charges and predict payback accurately.

Step 2 - Design & install

Next, we design a bespoke limited-supply energy storage solution, specifying the correct battery capacity, power conversion equipment and electrical integration. We coordinate all groundworks, installation, commissioning and grid compliance - delivering a fully functional system ready for immediate use.

Step 3 - Monitor & support

Once live, we continually monitor system performance through our secure online portal. We fine-tune charge and discharge schedules to maximise savings, provide ongoing maintenance, and offer expert support whenever you need it - ensuring your site operates efficiently and stays future-ready.

Typical limited supply BESS case use scenarios

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EV charging hub – instant capacity for rapid chargers

Challenge: A logistics depot wants to electrify its van fleet but its 250 kVA grid connection can only support a handful of fast chargers at once. Upgrading would take two years and significant capital expenditure.

Solution: Installing a 200 kWh BESS system that charges overnight on a low cost tariff and discharges during morning peaks. The depot now runs eight rapid chargers simultaneously without exceeding its grid allowance, speeding up fleet turnover and avoiding generator hire.

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Factory expansion – powering a second production line

Challenge: A medium‑sized manufacturer needs to add a second shift but was advised there's no spare capacity on its connection. The alternative is to install a diesel generator, which conflicts with its net‑zero targets.

Solution: By adding a modular BESS, the factory can store cheap off‑peak electricity overnight and releases it during the midday peak. The second line runs entirely off stored energy, keeping total demand within the existing capacity and delivering annual savings of over 20%.

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Cold storage facility – managing seasonal peaks

Challenge: A food distributor’s cold store experiences spikes in demand during summer heatwaves and pre Christmas rushes. These peaks trigger penalty charges and threaten supply continuity.

Solution: A battery system charges from the facility’s rooftop solar and overnight tariffs, then discharges to support chiller units during high load periods. The site now maintains temperatures, avoids overload fees and showcases its commitment to low carbon logistics.

Don’t let power shortages hold you back

Choosing the wrong partner or delaying action can hold your business back. Relying on diesel generators or waiting years for a grid upgrade erodes profitability and damages your sustainability credentials. Our battery storage solution lets you move quickly, reduce your environmental footprint and stay ahead of competitors who are still waiting on the network.

FAQs: Limited grid supply