HPC charging hubs need a lot of power in a small footprint. We deliver the medium-voltage grid connection – optionally with buffer storage to cut expensive grid-reinforcement costs.
Every HPC point draws load. We size transformer and switchgear so your charging hub does not buckle even under simultaneous charging.
Transformer sized to the charging-hub load profile, including reserve for expansion.
An optional BESS buffer shaves peak load and reduces grid reinforcement and connection charges.
Turnkey compact station, under 10 m², no building permit required in Germany.
Consumption from the medium-voltage grid, stepped down to the charging-hub low voltage.
With integrated battery storage as a load buffer – reduces connection power and grid costs.
Handover point to the public grid with instrument metering and protection.
The grid connection runs via the transfer station at the grid connection point. The transformer converts the medium voltage to the low-voltage level of the charging hub (usually 400 V).
At high simultaneity a buffer storage pays off: it covers load peaks from the battery, so the connection power the grid operator must provide – and thus the connection charge – drops.
| Charging-hub power | Transformer (guide) | Recommendation |
|---|---|---|
| up to 400 kW | 400 kVA | Compact station |
| up to 800 kW | 800 kVA | Compact station |
| up to 1,600 kW | 1,600 kVA | Compact + storage |
| up to 2,500 kW | 2,500 kVA | Compact + transfer |
| > 2,500 kW | multiple units | Hub + transfer station |
Guide values – the exact sizing is determined by the configurator or our engineering team.
As a guide, the sum of the charge points times a simultaneity factor. A hub with 8×150 kW HPC lands at around 800–1,200 kVA depending on simultaneity. We size it precisely.
Often yes: the storage shaves peaks, lowers the required connection power and thus the connection charge – and buffers weak grid connections.
The medium-voltage connection follows VDE-AR-N 4110 and the grid operator's TAB. With feed-back (BESS) a power-plant controller is also required.
Compact stations under 10 m² require no permit in any German state. International sites we check separately.
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