A hydraulic electric power generation system for roadway installation has a plurality of fluid-filled compressible pump channels positioned for compression by a vehicle to drive the fluid in a channel outwardly through outlet sides of the channels. The channels are contained in a mat adapted for positioning of a roadway surface in a manner such that the channels are compressed by the tires of vehicles travelling on the roadway. An outlet manifold collected the fluid driven out through the outlet sides of the channels and directs it to through piping to a hydraulic motor and coupled electric generator. The fluid exiting from the motor passes to a sump, from which it can be returned to a mat manifold at inlet sides of the channels. The channels are provided with one-way valves to prevent backflow.