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Identify a Suitable Power Tap-Off Point for EV Charging

1:44
2:56
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Have you ever seen 50 Utility Meters all in 1 room? Multi Unit Electrical #hendythesparky

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What happens here

Identify a suitable, high-capacity power tap-off point within the building's electrical system for the new EV charging infrastructure. In this demonstration, a 600 amp disconnect panel, which feeds the 'house' (common areas) of the building, is chosen. This house load has its own separate meter, leading to a Current Transformer (CT) cabinet, and then into a main panel that powers various building services, such as elevators. This main panel is the designated location from which to safely and effectively draw power for the EV chargers, ensuring it does not interfere with individual unit power supplies.

Goal: Determine a high-capacity and accessible point in the electrical system to connect new EV chargers.

Tools and materials

  • 600 Amp Disconnect — Feeding the house (common area) loads of the building
  • CT Cabinet — Housing current transformers for accurate metering of large currents
  • Main Panel — Distributing power to various building services like elevators
  • Separate House Meter — Metering the electricity consumption for the common areas

What they say

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Now, what we're going to be doing is coming off of this side. So, this 600 amp disconnect is feeding the house. Okay? So this these have a separate meter right here for the house. So everything from this meter is coming through this CT cabinet and is going into this panel. So we've got the elevator and this is where we're going to come and get our EV charging power from. Now, as far as load calculation, we ended up calling the utility company

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