As grid constraints slow public charging rollout, Wallbox’s fast charging and battery storage bundle offers a flexible, future-ready solution.
The EV industry has reached a turning point.
Demand is growing, policy is maturing, and major investments are flowing into public charging infrastructure across the UK and Europe. But amid all this progress, operators – from charge point operators (CPOs) to utilities and site owners – face a fundamental barrier: reliable access to power.
It’s one of the least discussed, yet most pressing challenges in scaling fast charging infrastructure.The grid simply wasn’t built for the pace or pressure of today’s electrification demands, and upgrades remain costly, complex, and slow.
To move forward, we need solutions that work with the grid we have now, not the one we hope for later.
The Grid Gap: A Growing Industry Headache
Fast charging sites are essential to meeting the growing expectations of EV drivers. But deploying them isn’t as simple as plugging into the grid. From retail forecourts to fleet depots, developers are ready to roll out DC chargers.
Yet many sites across the UK face serious constraints:
● Limited grid capacity: Most sites in the UK only have access to 100-200 kW, far below what’s needed to support multiple fast chargers.
● Long delays for DNO approvals or upgrades: Securing a grid connection can take 6 to 12 months, delaying site activation and revenue generation.
● High infrastructure costs: Grid reinforcement can easily exceed £200,000 per site, pushing many projects beyond viable investment thresholds.
● Voltage instability: Unreliable local supply can lead to load imbalance or even site downtime.
As more sites go online, strain on local grids only intensifies, making rollout timelines increasingly unpredictable.
These aren’t short-term hurdles; they’re systemic risks that threaten the scalability of EV infrastructure. And the consequences aren’t just technical – they directly impact ROI, customer satisfaction, and the UK’s ability to meet its net-zero goals.
Why Power Resilience Matters
Now Power reliability isn’t just about uptime, it’s about enabling sustainable business models for public charging.
CPOs and site operators need:
● Predictable installation timelines
● Energy cost control
● Future-proofed capacity to meet growing demand
● Reduced dependency on utility-side delays
Without these, ROI shrinks, rollout stalls, and drivers lose confidence in the charging experience. And while software and load balancing can help, they can’t solve fundamental energy supply constraints.
That’s where hybrid charging solutions come in – combining reliable DC hardware with flexible, modular energy storage.
A Smarter Approach: Fast Charging + Energy Battery Storage
At Wallbox, we believe reliable charging starts with resilient energy.
That’s why we’ve partnered with Pramac to deliver a modular, grid-flexible solution designed to unlock fast charging where power limitations stall deployment.
Introducing the Wallbox + Pramac Bundle
A combined system that pairs the Wallbox Supernova DC fast charger (up to 240kw) with Pramac’s LFP-based Battery Energy Storage System (BESS), available in configurations from 109 kWh to 2.1MWh.
This bundled solution offers a smarter, more scalable alternative to grid-dependent installations – engineered for speed, flexibility, and real-world deployment. An integrated Energy Management System (EMS) enables seamless load balancing between the charger and battery, and is also compatible with photovoltaic systems, maximising renewable energy use on-site.
How it works:
During low-demand hours or solar peak, the BESS charges from the grid or renewable sources. Then during peak usage, it supplies stored energy to power the Supernova fast charger – reducing grid load, avoiding peak tariffs, and enabling charging even in low- capacity zones.
What it solves:
● Enables fast charging where grid capacity is limited
● Reduces dependency on costly DNO upgrades
● Provides cost optimisation through peak shaving and load management
● Speeds up deployment timelines by sidestepping grid reinforcement needs
Why It Matters for the UK Market
With the UK targeting 300,000 public chargers by 2030, and local councils and private operators under pressure to deliver – finding scalable, power-flexible solutions is no longer optional.
Wallbox and Pramac’s bundled solution is already being evaluated for deployment across high-growth EV corridors, including:
● Retail parks with limited electrical capacity
● Municipal sites requiring faster rollout
● Rural communities where 3-phase grid access is restricted
● Private fleets seeking energy control and lower OpEx
Real Benefits for Real Operators
This isn’t theoretical. We’ve built the bundle for the real-world challenges faced by our partners:
● Flexible installation: Enables charging in constrained urban areas, rural communities, or private depots
● Lower energy costs: BESS charges off-peak, discharges during peak demand
● Improved ROI: Shorter lead times, faster revenue generation
● Modular and scalable: Start small, expand as needed
Combined with Wallbox’s charger management software and ongoing service support, this bundle is more than a stopgap. It’s a blueprint for scalable, future-ready infrastructure.
More Than a Manufacturer: Wallbox’s Integrated DC Approach
Wallbox is often recognised for its hardware, but our real strength lies in our full-stack fast charging ecosystem.
For the UK market, that means:
● DC chargers like the Supernova 240, designed for performance and uptime
● Integrated software solutions that enable monitoring, reporting, and smart energy
management
● Flexible end-to-end service and installation support through Wallbox and certified
partners
● Tailored BESS integrations for constrained or off-grid sites
Whether it’s a first deployment or network-wide upgrade, we provide the tools and partnership to scale intelligently.
The Road Ahead: A Smarter Path to Electrification
The transition to electric mobility won’t wait for perfect infrastructure. That’s why forward-thinking CPOs, utilities, and VARs are rethinking the way they deploy fast charging – and looking to hybrid solutions that bring together energy and access.
As public funding, policy incentives, and driver adoption continue to rise, now’s the moment to invest in smarter, more resilient infrastructure.
At Wallbox, we’re ready. With technology, partnerships, and strategy to help the UK charging ecosystem scale with confidence.
Interested in learning more about the Wallbox x Pramac solution? Reach out to Jan Dale, UK & Ireland Key Account Manager: jan.dale@wallbox.com
