Table 3 Mean absolute error (MAE) in Watts for real and denoised testing

ECO (2)

audio system

37.7

32.3

6.4

5.6

6.8

5.9

NAR = 5.9%

dishwasher

43.1

40.2

7.5

3.9

5.8

3.6

fridge

41.8

49.8

9.5

11.7

7.5

8.5

kettle

17.3

42.7

4.2

2.5

3.2

1.3

lamp

62.2

47.1

28.9

16.4

28.4

16.5

UK-DALE (5)

dishwasher

87.6

95.1

12.2

3.6

8.3

4.1

NAR = 27.5%

electric oven

50.7

39.2

20.7

9.0

17.4

9.1

electric stove

131.3

40.1

7.3

6.1

6.4

4.4

fridge

161.4

141.4

25.7

21.1

20.6

16.4

washing machine

74.8

51.4

28.6

14.8

17.3

13.7

REFIT (2)

dishwasher

96.0

41.3

31.4

9.0

25.3

8.5

NAR = 65.1%

fridge

57.8

22.8

23.0

10.4

23.9

12.4

kettle

79.1

9.2

9.8

3.3

9.7

3.2

microwave

70.8

46.6

2.7

1.5

2.8

1.1

washing machine

101.5

41.0

21.6

12.6

24.1

11.3