Environmental and Economic Optimization Model for Electric System Planning in Ningxia, China: Inexact Stochastic Risk-Aversion Programming Approach

Table 2

Economic and technological parameters of different generation technologies.

Conversion technology	Time period
	t = 1	t = 2	t = 3
Regular and surplus costs for power generation by each power conversion technology ($10^6/10^3 GWh)
Coal-fired power
Regular cost,	5.0, 5.2	5.5, 5.7	6.0, 6.2
Surplus cost,	3.0, 3.3	3.5, 4.0	4.0, 4.2
Gas-fired power
Regular cost,	4.5, 6.5	5.0, 7.0	5.5, 7.5
Surplus cost,	2.5, 2.8	3.0, 3.3	3.5, 3.8
Hydropower
Regular cost,	4.0, 6.0	4.5, 6.5	5.0, 7.0
Surplus cost,	1.8, 2.2	2.0, 2.6	2.5, 3.4
Wind power
Regular cost,	2.5, 3.5	3.0, 4.0	3.5, 4.5
Surplus cost,	1.5, 1.8	2.0, 2.3	2.5, 2.8
Solar power
Regular cost,	2.0, 3.0	2.5, 3.5	3.0, 4.0
Surplus cost,	1.0, 1.3	1.5, 1.8	2.0, 2.2
Fixed ($10^6) and variable ($10^6/GW) costs for capacity expansion
Coal-fired power
Fixed cost,	325, 335	330, 345	335, 345
Variable cost,	700, 715	710, 725	720, 735
Gas-fired power
Fixed cost,	300, 315	310, 325	320, 330
Variable cost,	650, 660	655, 665	660, 670
Hydropower
Fixed cost,	700, 715	710, 725	720, 730
Variable cost,	1800, 1820	1815, 1830	1825, 1835
Wind power
Fixed cost,	800, 812	810, 822	820, 830
Variable cost,	1900, 1915	1910, 1925	1920, 1935
Solar power
Fixed cost,	900, 910	905, 920	915, 930
Variable cost,	2000, 2025	2020, 2035	2035, 2045