English: Paraboloidal dish for concentrated solar power (CSP), with a maintenance crane. Described at [1] "incorporates a very accurate re-useable jig, to provide the accuracy of the frame supporting the optical surface. Novel fabrication techniques have been employed to form the space-frame on this jig in a manner that is rapid and cost-effective. The emphasis is to establish a ‘Factory-in-the-Field’ concept for manufacture of large dish arrays. A key element of this is the on-site production of roll-formed structural sections from steel coil stock." And, "The most notable feature is the very high concentration levels, with a peak of 14,100, and a geometric concentration ratio for 95% capture of 2240. (These can be compared to be original SG3 dish built at ANU, which has values of ∼1000 and 500, respectively.)"