From: Performance study and economic analysis of photo-voltaic thermal system under real-life thermal loads in tropical climate
Parameter
Value
Annual O&M cost
1% of total investment cost
Decommissioning cost
5% of total investment cost
Salvage cost
Lifetime of system
25 yr
Discount rate
5%
Inflation rate
2.4% yr−1
Degradation rate [11,12,13]
0.75% yr− 1
Electrical tariff [14]
SGD 0.2634 kWh− 1