Capacity market is one of the most successful mechanisms to ensure power system adequacy where generation units sell their capacity in a competitive manner. High investment costs, long construction periods and lack of competition between generation units in some sections of the grid are factors which may justify resources based on demand side management deployment in capacity market. Hence this paper aims at reducing reliability costs and generations markets power using mentioned resources deployment in capacity market. The reliability cost is calculated as some of costs paid to the generators proportionate to their share. Furthermore, market power of players is evaluated using MRCI index. The proposed method is tested in IEEE 57 bus network and results are reported.and results are reported