Research Article
Energy Audit and Feasibility of Solar PV Energy System: Case of a Commercial Building
Table 3
Recommended energy use for the building.
| | Appliance | Power rating (W) | Quantity | Connected load (W) | Operating time (h) | Daily energy (kWh) |
| | Refrigerator | 120 | 4 | 480 | 24 | 3.4 | | Fan | 50 | 7 | 350 | 6 | 2.1 | | Air conditioners | 1500 | 5 | 7500 | 5 | 37.5 | | Printers | 500 | 3 | 1500 | 6 | 9 | | 32 TV | 55 | 4 | 220 | 7 | 1.54 | | Internet router | 3 | 3 | 9 | 10 | 0.09 | | Laptop | 50 | 5 | 250 | 7 | 1.75 | | CCTV cameras | 6 | 9 | 54 | 12 | 0.648 | | Kettles | 1000 | 4 | 4000 | 1 | 4 | | Rice cookers | 1200 | 2 | 2400 | 0.75 | 1.8 | | Laminator | 600 | 3 | 1800 | 2 | 3.6 | | Emergency bulbs | 6 | 12 | 72 | 12 | 0.864 | | Florescent tube | 26 | 15 | 390 | 8 | 3.12 | | Total energy need in a day | 69.412 | | Total energy need in a month (31 days) | 2151.772 | | Total energy need in a year (365 days) | 25335.38 |
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