44kW EV Charging Solution Transforms Fleet Operations in Sittingbourne
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Executive Summary
A Sittingbourne fleet depot needed faster, scalable EV charging to keep a growing van fleet on the road. Prowired delivered a high‑capacity 44kW solution featuring a Rolec Securicharge dual‑outlet unit, backed by significant electrical infrastructure upgrades and a full system reconfiguration. The result: quicker charging cycles (circa 40 miles of range per hour), reliable day‑to‑day operations, and a future‑ready platform for expansion.
Challenge
With electric vans covering up to 60 miles per shift, the depot required rapid daytime top‑ups and dependable uptime. The initial concept of a single 22kW charger proved insufficient after load analysis and real‑world usage review. The site’s existing electrical distribution also needed enhancement to safely support higher charging capacity and simultaneous vehicle connections.
Solution
Prowired designed and installed a robust, scalable charging system tailored to fleet operations:
- Electrical infrastructure upgrades:
- New Hager distribution board, upgraded switchgear, and a full busbar system
- Dedicated armoured cabling from switchgear to charger location for durability and performance
- EV charging installation:
- Rolec Securicharge unit with dual 22kW Type 2 outlets (total 44kW) for simultaneous charging
- Dynamic load balancing, MID energy metering, and OCPP 1.6 compliance for future integrations
- Contactless payment compatibility, Wi‑Fi/4G connectivity, and robust fault detection
- System reconfiguration:
- Redesigned from an initial 22kW concept to a 44kW dual‑outlet solution
- Updated load calculations and revised installation methodology to ensure optimal performance and compliance
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Challenges and How We Resolved Them
- Unexpected load requirements:
- Finding: Operational demand required dual‑outlet 44kW capacity—not the originally scoped 22kW
- Resolution: Rapid redesign with enhanced distribution, switchgear, and protection to accommodate higher loads
- Scope change and programme impact:
- Approach: Transparent re‑quote and close client communication to explain benefits, ROI, and operational gains
- Outcome: Approved upgrade integrated with minimal delay, maintaining programme momentum
Results
- Faster charging cycles:
- Approximately 40 miles of range added per hour, enabling swift turnarounds between shifts
- Enhanced reliability and safety:
- Industrial‑grade hardware (IP54/IK10), PME fault detection, and dynamic load management
- Operational flexibility:
- Dual outlets support two vehicles simultaneously; multiple user access via RFID, app, or plug‑and‑charge
- Future‑ready platform:
- OCPP 1.6 compliance for back‑office integration, MID metering for accurate energy reporting, and scalable architecture for fleet growth
“Moving to a 44kW dual‑outlet system has made a noticeable difference to our daily operations. Vehicles are ready faster, and the system gives us the flexibility to grow the fleet with confidence.” — Fleet Operations Manager
Conclusion
This project shows how thoughtful electrical design and robust EV hardware can transform fleet readiness. By upgrading the site’s infrastructure and deploying a Rolec Securicharge 44kW solution, Prowired delivered a system that improves uptime, controls costs, and scales with future demand.
- Learn more about our EV charging services
- Get Started: Book a free consultation with Prowired to assess your depot’s capacity and design a scalable charging solution tailored to your operations.