IN Brief:
- Wallbox has deployed its first operational Supernova PowerRing fast-charging system at Port de Sitges in Spain.
- The installation uses three Supernova chargers with shared dynamic capacity of up to 240kW once fully enabled.
- The architecture allocates power between chargers to reduce the complexity of high-power site deployment.
Wallbox has completed the first operational deployment of its Supernova PowerRing fast-charging system at Port de Sitges, near Barcelona.
The installation uses three Supernova chargers designed to support shared dynamic capacity of up to 240kW once fully enabled. PowerRing automatically allocates available power between chargers based on the number of vehicles connected, vehicle compatibility, charging demand, and available site capacity.
Under the current installation configuration, the system is designed to deliver between 80kW and 240kW to each vehicle. The wider PowerRing architecture can provide up to 400kW to a single compatible vehicle where sufficient power is available, with shared system capacity capable of reaching up to 720kW.
Fast-charging sites are increasingly constrained by grid capacity, site footprint, and electrical distribution cost. Conventional high-power layouts can require large connection capacity, bigger cabinets, heavy cabling, cooling, protection systems, and substantial civil works. Shared-capacity architectures aim to improve utilisation by matching delivered power to real charging sessions instead of sizing every outlet for maximum simultaneous demand.
Port de Sitges gives the system a public and semi-public charging environment with variable dwell times and changing demand. Marinas, retail destinations, service stations, parking facilities, urban hubs, and fleet locations often face similar design constraints, particularly where the available grid connection is limited or costly to expand.
Dynamic allocation changes the economics of site design. Not every vehicle arrives with the same battery state, charge curve, maximum charging acceptance, or dwell time. A control system that distributes power across multiple outlets can support higher practical use of the available connection while avoiding unnecessary oversizing.
Charging infrastructure is moving away from outlet count alone as the main measure of network quality. Higher EV penetration places greater emphasis on utilisation, uptime, power availability, maintenance access, cable management, payment reliability, and the ability to expand sites without rebuilding them from the ground up.
The same pressure is visible in the UK. The Hampshire 17,180-charge-point programme includes more than 800 rapid charge points rated above 50kW, while lower-power street and residential schemes are using different infrastructure models to extend access. Across both ends of the market, grid capacity and site design are becoming inseparable.
PowerRing is aimed at the more constrained end of rapid and ultra-rapid charging deployment. By sharing capacity between chargers, the system can reduce the gap between installed electrical capacity and actual charging behaviour. That approach can be especially useful where a site needs several outlets but cannot justify, or cannot obtain, enough grid capacity for all of them to run at maximum output at once.
The engineering requirements remain extensive. Sites need protection, metering, earthing, communications, thermal management, payment systems, back-office integration, maintenance access, and reliable user interfaces. Shared power architecture adds further control logic, making commissioning and performance monitoring central to long-term site reliability.
Charging operators are now looking beyond headline charger ratings. Site-level power management, modular expansion, equipment density, and grid-connection cost are becoming core design variables. Wallbox’s first operational PowerRing deployment shows how high-power charging is increasingly being built around controlled capacity sharing rather than simple charger oversizing.
