Abstract: An arrangement includes a secondary fluid conduit fitted to a primary fluid conduit which is fitted with a pressure reducing valve, a first isolating valve upstream, and a second isolating valve downstream. The secondary fluid conduit defines an inlet for allowing fluid flowing through the primary fluid conduit to enter the secondary fluid conduit, to define a mode in which all the fluid flows through the secondary fluid conduit, and an outlet for allowing fluid flowing through the secondary fluid conduit to rejoin the primary fluid conduit after the second isolating valve, the flow of fluid through the secondary fluid conduit bypassing the pressure reducing valve. The secondary fluid conduit is fitted with at least one rotatable turbine, a third isolating valve upstream, and a fourth isolating valve downstream. Under the influence of the fluid flowing through the secondary fluid conduit, each turbine can rotate to drive an electricity generator.

Abstract: According to a first aspect of the invention there is provided an electricity generating arrangement comprising at least one secondary water conduit fitted to a primary water conduit, the secondary water conduit defining an inlet for allowing water flowing through the primary water conduit to enter the secondary water conduit and an outlet for allowing water flowing through the secondary water conduit to exit the secondary water conduit so as to rejoin the primary water conduit. The arrangement further comprises at least one rotatable turbine located within the secondary water conduit, each turbine being connectable to a generator so that under the influence of the water flowing through the secondary water conduit, the turbine can rotate so as to drive the generator to generate electricity. In an example embodiment, an inlet valve is located within the secondary water conduit, adjacent the inlet, and an outlet valve is located within the secondary water conduit, adjacent the outlet.