Waste Management Cost Impacts on Project Finance: A Case Study of Solar Photovoltaic Rooftops in Thailand

Author Information

Kritsana Sontimanotham, Mahidol University, Thailand
Komgrich Thavornwanchai, University of the Thai Chamber of Commerce, Thailand
Raywadee Roachanakanan, Mahidol University, Thailand
Sittipong Dilokwanich, Mahidol University, Thailand

Abstract

Recently, the Royal Government of Thailand has announced promotional policies for solar photovoltaic (PV) roof mounts. The feed-in tariff policy of three project scales (residential <10kw, medium commercial 10-250kw and large commercial/industrial 250-1000kw) has been granted to the applicants for duration of 25 years at 6.96, 6.55 6.16 baht (0.20, 0.19 0.18 usd), respectively. however, there is no regulation on waste generated from solar pv project that will lead environmental effect in decommissioning phase. handling cost finance analyzed by using thailand’s circumstance data 2015. cash flow 54 cases have calculated along with other financial parameters. results indicated most profitable case residential scale disposal existing land filled (irr 13.01%, npv 260,718.32 baht, bcr 1.19). same trend, highest return 14.34%, 11,789,246.01 1.37). scale, method generating yield incineration 14.27%, 43,458,050.35 1.36). sensitivity analysis small, medium, scales would be below benchmark value, 12.63% roe power producing companies national open market, 5%, 10% income reduction, are used predicting designated waste, which requires proper policies order enforce encourage responsibility relevant parties.

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