Power distribution and direct current charging

A system comprising:

• a bidirectional inverter electrically coupled to an alternating current (AC) grid and a direct current (DC) bus;
• a plurality of DC to DC converters electrically coupled to the DC bus to charge one or more battery-powered vehicles;
• one or more processors;
• and
• memory that stores computer-executable instructions that, if executed, cause the one or more processors to:
• in response to determining that voltage on DC bus is above a threshold, cause the bidirectional inverter to convert AC voltage from the AC grid to DC voltage to be provided to the DC bus to charge one or more battery-powered vehicles;
• and
• cause the bidirectional inverter to adjust the DC voltage to be inversely proportional to an amount of power to charge the one or more battery-powered vehicles electrically coupled to the plurality of DC to DC converters, wherein load for a DC to DC converter of the plurality of DC to DC converters is proportional to the DC voltage.

A method comprising:

• determining that a voltage on direct current (DC) bus coupled to a plurality of DC to DC converters and a bidirectional inverter is below a threshold;
• receiving an indication that a battery-powered vehicle is electrically coupled to a DC to DC converter of the plurality of DC to DC converters;
• preventing other DC to DC converters of the plurality of DC to DC converters receiving power to the DC bus until the voltage of the DC bus exceeds the threshold;
• causing the DC to DC converter of the plurality of DC to DC converters to increase the voltage on the DC bus;
• causing the bidirectional inverter to convert AC voltage from an alternating current (AC) grid to DC voltage as a result of determining that the voltage of the DC bus exceeds the threshold;
• causing the other DC to DC converters of the plurality of DC to DC converters to be allowed to be electrically coupled to the DC bus;
• and
• causing at least one of the other DC to DC converters to charge one or more other battery-powered vehicles based, at least in part, on the DC voltage.