Laser grooved buried contact silicon solar cells can be optimised for use ill linear concentration systems at low cost. Optimising the groove depth, the copper thickness and the finger pitch by using the Design of Experiments (DOE) experimental methodology call lead to a dramatic reduction of the cell series resistance. This type of cell can be optimised for each application ill ail industrial line with few changes. For the EUCLIDES III linear concentrator system, optimised cell efficiency metrics for 51 x 116 mm units are in the range of 18-19% at the 40 x concentration level. (C) 2009 Elsevier B.V. All rights reserved.