The iron vanadium oxide semiconductor Fe2V4O13 has interesting properties as an absorbent material for the conversion of solar energy. In this work the electronic, magnetic and optical properties of Fe2V4O13 have been obtained and analyzed from theoretical calculations and compared with experimental results. From the results, the main contributions to the optical properties come from the transitions between O-V states. The optical properties have been used to evaluate this compound as a solar energy converter using mono- and multi-junction configurations.