You searched for: “shunt controller
shunt controller
A charge controller that redirects or shunts excessive charging current away from a battery.

The controller requires a large heat sink to dissipate the current from the short-circuited photovoltaic array.

Most shunt controllers are for smaller systems producing 30 amperes or less.

This entry is located in the following unit: Photovoltaic Conversion Efficiency Terms + (page 19)