NOVELTY - The system (166) has a rechargeable power source (75) coupled to a power bus (58) to selectively provide electric current to the power bus and selectively receive electric current from the power bus. A control module (122) monitors voltage of the power bus and a state of charge of the rechargeable power source, where the control module selectively directs regeneration energy created by a traction motor (80) into a resistor array (170) based on the voltage of the power bus and the state of charge of the rechargeable power source.    USE - Braking regeneration energy shunt system for a turf maintenance vehicle (claimed) i.e. hybrid electric turf maintenance vehicle, to cut rough grass, fairway grass and lawns, and maintain grass height of golf course green. Can also be used for a walk behind turf maintenance vehicle and a standing turf vehicle maintenance vehicle.    ADVANTAGE - The rechargeable power source is coupled to the power bus to selectively provide electric current to the power bus and selectively receive electric current from the power bus, thus reducing failure of the rechargeable power source, and preventing overcharging of the rechargeable power source. The system allows information to be relayed to a main control module for diagnostics and to an operator of the turf maintenance vehicle. The system terminates operation of the turf maintenance vehicle to be protected against over-voltage condition, thus enhancing longevity and performance of the turf maintenance vehicle.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) a turf maintenance vehicle comprising a driven wheel    (2) a method for dissipating regeneration energy created in a turf maintenance vehicle for monitoring voltage of a power bus.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of an electrical system of a hybrid electric turf maintenance vehicle.    Power bus (58)    Rechargeable power sources (75, 75')    Traction motors (80, 90)    Control modules (122, 122')    Braking regeneration energy shunt system (166)    Resistor array (170)