1. Baltus, C.W.A., van der Borg, N.J.C.M., van Dijk, V.A.P., Reinders, A.H.M.E., Kil, A.J., Zolingen, R.J.C., 1998. The suitability of several methods to quantify energy losses in PV systems. ECN Report: ECN-C-98-098. Available from: .
2. BRE, 2006. Domestic Photovoltaic Field Trials – Final Technical Report. Department of Trade and Industry Contractor Report, Building Research Establishment, Watford, UK. Available from: .
3. BSI, 1998. Photovoltaic system performance monitoring – guidelines for measurement, data exchange and analysis. British Standards Institution, BS EN 61724.
4. Site dependence of the energy collection of PV modules;Bücher;Solar Energy Materials and Solar Cells,1997
5. Bücher, K., Kunzelmann, S., 1998. The Fraunhofer ISE PV charts: assessment of PV device performance. In: Second World Conference and Exhibition on Photovoltaic Solar Energy Conversion, Vienna, Austria, July 1998.