There are several regulations on the electricity generation processes to meet the qualifications as an SPP. The major characteristics of qualifying facilities are: a) using non-conventional energy
such as wind, solar and mini-hydro, etc., b) using waste, residues or garbage from agricultural or
industrial processes as fuels and c) electricity generation by co-generation. As of April 2004, 41 SPP contracts have been concluded and 2,116,900 kWh of electricity have been supplied by SPPs