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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