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Contruction
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Ringbeam structure supported on 2x pod structures (plant and battery), made from re-fabricated shipping containers.
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Space
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12x 2.5 x 5 m bays configured as 6 x 2 bay arrangement (occupying footprint of 7 x 2 bays).
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Grid Connection
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400A (max) 3P+N+E, with maximum import and export capacity of 240kW / 300kVA. It is a key project objective to test and optimise current limitation in the range of 100 to 250A for smaller connections.
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Vehicle Charging
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12x 30kW bi-directional DC vehicle connectors (CCS2 and CHAdeMO for each bay).
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Cable management
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800mm cable management arm with 90° swing for double cable arrangements, 4.5m (approx.) usable cable length.
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Solar generation
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20kWp solar PV canopy (formed from 42 modules), with Maximum Power Point Tracking System.
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Battery storage
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Installed 280kWh (nominal) lithium-ion battery energy storage system from UK supplier Fellten, comprised 4x 70 kWh modules. Unit capacity for additional 280kWh storage.
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Internal connection
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DC micro-grid system with DC:DC conversion and protection at input and output interfaces.
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Control system
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3ti “3tiG” control system, OCPP, multi-tiered load control
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System modes
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PV-to-Vehicle, PV-to-Battery, PV-to-Grid, Grid-to-Vehicle, Grid-to-Battery, Vehicle-to-Building, Vehicle-to-Grid, Vehicle-to-Vehicle (multiple power flow combinations possible).
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Main chargepoint & system standards
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- IEC 61851-1, IEC 61851-21-2, IEC 61851-23, IEC 61851-24,
- IEC 62196-1, IEC 62196-3,
- ISO 15118-1, ISO 15118-2, ISO 15118-20,
- DIN 70121
- ENA EREC G99, ENA EREC G100
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