Stochastic Dynamic Programming Applied to Hydrothermal Power Systems Operation Planning Based on the Convex Hull Algorithm

Table 6

Stage 1 expected costs.

Water storage (%)		100		50		0
Water inflow (hm^3)		25	18	25	18	25	18
Optimal decision	$x_{t+1}$	75	68	47.2	40.2	0	0
	$u\mathrm{\hspace{0.17em}\hspace{0.17em}}$	50	50	27.8	27.8	25	18
	$t{g}_1$	0	0	20	0	20	20
	$t{g}_2$	0	0	0	0	2.5	8.8
	$\text{Uns}$	0	0	0	0	0	0
Immediate cost ($)		0.0	0.0	200.0	200.0	250.0	376.0
Future cost($)		161.8	207.2	356.5	439.1	914.0	914.0
Mean optimal cost ($)		184.50		597.80		1227.00