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Table 3 Daily load demand analysis for the site in the summer and winter case

From: Assessment of a decentralized grid-connected photovoltaic (PV) / wind / biogas hybrid power system in northern Nigeria

Appliances

Power rating (W)

Quantity per household

Power req. per household (W)

Time of use (h)/out of 24 h.

Energy use per household (kWh)

Power req. for 200 households (kW)

Energy use for 200 households (kWh)

Light bulb/incandescent

100

10

1000

19:00–7:00 (12 h)

12.00

200.00

2400.00

Radio

12

2

24

6:00–19:00 (13 h)

0.31

4.80

62.00

Television

100

1

100

18:00–0:00 (06 h)

0.60

20.00

120.00

Refrigerator

160

1

160

0:00–23:00 (24 h)

3.80

32.00

760.00

Water dispenser

600

1

600

0:00–23:00 (24 h)

14.40

120.00

2880.00

Computer/charging

150

3

450

7:00–10:00 / 18:00–21:00 (06 h)

2.70

90.00

540.00

Mobile phone/charging

5

6

30

7:00–9:00/18:00–20:00 (04 h)

0.12

6.00

24.00

Electric kettle/water heater

1200

2

2400

6:00–7:00/19:00–20:00 (02 h)

4.80

480.00

960.00

Washing machine

500

1

500

6:00–8:00 (02 h)

1.00

100.00

200.00

Electric cooker

1200

2

2400

6:00–8:00/11:00–13:00/18:00–20:00 (06 h)

14.40

480.00

2880.00

Pressing iron

1000

2

2000

7:00–8:00 (01 h)

2.00

400.00

400.00

Internet router

5

1

5

0:00–23:00 (24 h)

0.12

1.00

24.00

Space warmer (incorporated in winter)

1500

3

4500

19:00–10:00 (15 h)

67.5

900.00

13,500.00

Fan (incorporated in summer)

75

3

225

22:00–7:00 (09 h)

2.03

45.00

406.00

Air conditioner (incorporated in summer)

1200

1

1200

8:00–21:00 (13 h)

15.60

240.00

3120.00

Total for summer case

N/A

N/A

11,094

N/A

73.88

2218.80

14,776.00

Total for winter case

N/A

N/A

14,169

N/A

123.75

2833.80

24,750.00