Survey on the P.V. Generator of Castellina in Chianti (Italy)

The aim of this study was the definition of low-cost solutions to optimise and maintain a satisfactory cost balance in the medium-long term between the different sub-systems and components of P.V. power generators.

In particular, the long-term objective is to keep the cost of support structures below about 20% of the total system cost.

A unit of about 200 modules was investigated in the Chianti Region of Castellina and in this paper results will be presented on the following topics

-the feasibility study of the most appropriate solution of a low-cost, simple, light-weight (0.3 kg/Wp), flexible and continuous array support structure (made of timber and steel wires).

-The study of the soil and of the site including site preparation by simple machines.

-The design of the solution retained valid after the imposed limitations for the plant approval.

-The construction and assembling of the entire P.V. plant.

-The measurements' campaigns carried out on the main structural components and the discussion of these results compared with design assumptions.

-The extrapolation of the real costs to larger P.V. units.

-The conclusive remarks on the experience acquired during the implementation of the project, its realization, its testing and operation over more than 18 months of life-time.