Abstract: A solar furnace wherein multiple Fresnel lenses focus light rays upon heat conductors associated with each of the lenses. Each heat conductor has an exposed arcuate portion which serves to mount lens supporting means permitting pivotal movement of said supporting means about the conductor to maintain the lens focus in common with a portion of the conductor. Fluid passing through the vessels is heated to the extent that same may be used for powering a steam turbine associated with an electrical generator. To provide a self-contained, transportable generating system the solar furnace may be incorporated into a structure mounting additional components providing for condensation of the steam and recirculation to the solar furnace vessels.