In Section 3.3, the WEA scheme compensates for LCCO2 by replacing fossil resource-based electricity with PVbased electricity. In other words, if PV generation is not within the variable capacity of thermal power generation, PV-based electricity generation will be oversupplied. If the WEA scheme is applied and allocates PV power to electricity, the electricity amount should be within the variable capacity of thermal power generation in each country as a limitation of this approach.