Dr. Stephen Preece was invited to give a paper at the 3rd Annual c-Si PVMC Workshop. This event was organized in parallel to the Intersolar Exhibition / SemiCon West in San Francisco. The paper covered work performed under the PVMC c-Si wafering methodologies project, run from the University of Central Florida. PRP contributed to the project by using its diamond wire saw to complete a matrix of tests using combinations of diamond wire from different vendors and 156 mm monocrystalline silicon ingots with different properties. Small batches of wafers were produced and sent to PVMC for evaluation of shape and surface finish. The wafers were then used for further experiments designed to determine the effect of wafering conditions on PV cell performance.