Abstract: Systems and methods for a modular power-agnostic work vehicle are provided. A work vehicle includes: a main frame, a traction motor: driven by a power source, and converting mechanical energy into electrical energy, a wheel on an axle connected to the main frame driven by the traction motor, a platform, a power interface, a control interface controlling: a primary H-bridge, a cooling system, and a motor inverter: providing power to the motor to rotate the axle, and receiving the electrical energy, a cooling blower inverter interface controlling: auxiliary inverters providing power to: the cooling system and blowers, and a secondary H-bridge controlling current flow, and retarding grid units, at least a first retarding grid unit supported directly on an upper surface of a second retarding grid unit, each retarding grid unit: converting the electrical energy received by the motor inverter from the traction motor into heat, and dissipating the heat.