Week

Peak load (MW)

Linear model

Quadratic model

Exponential model

LSRM (MW)

PSO

(MW)

Error (%)

LSRM

(MW)

PSO

(MW)

Error (%)

LSRM

(MW)

PSO

(MW)

Error (%)

4

2830

2532.71

2654.16

10.50

6.21

2728.84

2742.90

3.57

3.08

2526.51

2534.93

10.72

10.43

8

2740

2537.94

2659.75

7.37

2.93

2599.13

2614.26

5.14

4.59

2531.62

2542.55

7.60

7.21

12

2530

2541.42

2663.47

−0.45

−5.28

2533.57

2550.54

−0.14

−0.81

2535.04

2547.64

−0.20

0.70

16

2420

2544.90

2667.20

−5.16

−10.21

2484.75

2504.46

−2.68

−3.49

2538.45

2552.74

−4.89

5.48

20

2520

2549.25

2671.85

−1.16

−6.03

2447.26

2471.64

2.89

1.92

2542.73

2559.12

−0.90

1.55

24

2552

2552.73

2675.58

−0.03

−4.84

2436.10

2465.23

4.54

3.40

2546.16

2564.25

0.23

0.48

28

2690

2556.21

2679.30

4.97

0.40

2441.68

2476.44

9.32

7.94

2549.59

2569.38

5.22

5.22

32

2810

2560.57

2683.95

8.88

4.49

2472.18

2515.26

12.02

10.49

2553.89

2575.81

9.11

8.33

36

2900

2563.18

2686.75

11.61

7.35

2503.03

2551.77

13.69

12.01

2556.47

2579.67

11.85

11.05

40

3010

2564.92

2688.61

14.79

10.68

2528.83

2581.62

15.99

14.23

2558.19

2582.25

15.01

14.21

44

2540

2569.27

2693.26

−1.15

−6.03

2611.63

2675.54

−2.82

−5.34

2562.50

2588.72

−0.89

1.92

48

2660

2571.88

2696.06

3.31

−1.36

2673.87

2745.11

−0.52

−3.20

2565.09

2592.60

3.57

2.53

52

2820

2576.23

2700.71

8.64

4.23

2798.51

2883.10

0.76

−2.24

2569.41

2599.09

8.89

7.83

Average error (%)

6.62

5.49

-

-

6.36

5.12

-

-

6.71

6.46