Week	Peak load (MW)	Quadratic model		Error (%)
Week	Peak load (MW)	LSRM	PSO	Error (%)
4	2830	2817.29	2816.02	0.45	0.49
8	2740	2697.22	2715.67	1.56	0.89
12	2530	2553.18	2590.65	−0.92	−2.40
16	2420	2448.29	2445.67	−1.17	−1.06
20	2520	2521.15	2517.90	−0.05	0.08
24	2552	2591.79	2587.66	−1.56	−1.40
28	2690	2689.41	2684.06	0.02	0.22
32	2810	2870.86	2863.52	−2.17	−1.90
36	2900	2949.57	2940.79	−1.71	−1.41
40	3010	3005.47	2995.62	0.15	0.48
44	2540	2559.40	2548.84	−0.76	−0.35
48	2660	2657.91	2647.05	0.08	0.49
52	2820	2762.11	2756.63	2.05	2.25
Average error (%)				2.20	1.55