Objectives and problem to be solved: The objective of the project is to develop cost effective photovoltaic systems to contribute to the EC strategy of doubling the share of Renewable Energy in the energy mix. Photovoltaic systems working at high concentration are expected to be able to produce electricity at prices comparable to the existing prices. Presently developed concentration systems use expensive Saga cells. Concentration systems using silicon cells produced in conventional silicon foundries are expected to be more cost effective than those based on expensive Saga cells. Description of work: The objective of the project is to develop a low cost X500 photovoltaic concentration system. The system is based on the concept of two stages concentration and the use of silicon cells: · the light is focussed on the silicon cell by a primary concentrator having a concentration ratio of typically X100 to X300· a silicon cell having both n and p grids on the face through which light is entering is placed at the focus of the primary concentrator· an array of micro lenses placed on the silicon cell focuses the light between the grids of· the cell, leading to an overall concentration ratio of typically X500. This concept allows a maximum collection of the light and optimum working conditions for the silicon cell. The target specifications for the system are:
· 15% efficient encapsulated modules, at a NOCT not higher than 50°C above ambient.· A kip system demonstrator mounted on a two axis tracking system will me manufactured and tested. Expected Results and Exploitation Plans: The aim of this project is to develop a photovoltaic system capable of producing electricity at prices, comparable to those of grid electricity, i.e. below 0.1 Euro/kWh. Target applications for these systems are small power plants for village mini-grids and larger grid-connected power plants, thus contributing to electricity production by renewable energy in a significant manner.
Funding SchemeCSC - Cost-sharing contracts
28230 Las Rozas De Madrid