DC to DC edge device

A DC to DC edge device comprising:

• an energy storage device;
• a mechanical structure configured to hold the energy storage device and mount into a wall of a building;
• a first connector positioned to be connectable to a first direct-current (DC) power cable within the wall while the DC to DC edge device is mounted into the wall;
• a second connector, coupled to the energy storage device, and positioned to be exposed and connectable to a second DC power cable outside of the wall while the DC to DC edge device is mounted into the wall;
• a third connector;
• and
• charging circuitry, coupled to the first connector, the third connector, and the energy storage device, to provide direct-current (DC) power received from the first connector to the energy storage device, the charging circuitry comprising:
• a network interface coupled to the third connector;
• a processor coupled to the network interface and programmed to:
• communicate with at least one other processor through the network interface to determine whether to send or receive DC power through the third connector;
• send DC power from the energy storage device through the third connector at a first time in response to a determination to send DC power;
• determine how to utilize the DC power received from the third connector based on at least one of a state of the energy storage device or a power requirement from an external device coupled to the second connector, in response to a determination to receive DC power;
• send at least some of the DC power received from the third connector to the energy storage device at a second time;
• and
• send at least some of the DC power received from the third connector to the second connector at a third time.