Open Access
Table 1
Energy needed for the household use.
| Description of item | Power rating (Watts) | Qty | Total load (Watts) | Daily hour of actual utilization (hr.per day) | Total/hr (Total load x daily hr) |
|---|---|---|---|---|---|
| Air-Conditioner | 1170 | 1 | 1170 | 9 h (08:00 h − 17:00 h) | 1170 × 9 = 10530 |
| CCTV | 30 | 1 | 30 | 24 (00:00 h − 24:00 h) | 30 × 24 = 720 |
| Ceiling fan | 100 | 14 | 1400 | 14 h (08:00 h − 22:00 h) | 1400 × 14 = 19600 |
| Computer Laptop | 35 | 1 | 35 | 9 h (08:00 h − 17:00 h) | 35 × 9 = 315 |
| Computer PC | 115 | 1 | 115 | 9 h (08:00 h − 17:00 h) | 115 × 9 = 1035 |
| Computer printer | 100 | 1 | 100 | 1 h (15:00 h − 16:00 h) | 100 × 1 = 100 |
| DSTV Receiver | 20 | 1 | 20 | 22 h (06:00 − 17:00 h; 18:00 h − 05:00 h) | 20 × 22 = 440 |
| DVD Player | 50 | 1 | 50 | 2 h (19:00 h − 21:00 h) | 50 × 2 = 100 |
| Electric pressing iron | 1000 | 1 | 1000 | 1 h (12:00 h − 13:00 h) | 1000 × 1 = 1000 |
| Electric stove | 1000 | 1 | 1000 | 2 h (17:00 h − 19:00 h) | 1000 × 2 = 2000 |
| Energy Efficient Lighting (indoor) | 6 | 23 | 138 | 8 h (04:00 h − 08:00 h; 18:00 h − 22:00 h) | 138 × 8 = 1104 |
| Energy Efficient Lighting (outdoor for security) | 9 | 4 | 36 | 13 h (18:00 h − 07:00 h) | 36 × 13 = 468 |
| Medium size deep-freezer | 130 | 1 | 130 | 24 h (00:00 h − 24:00 h) | 130 × 24 = 3120 |
| Microwave Oven | 1000 | 1 | 1000 | 2 h (06:00 h − 07:00 h; 11:00 h − 12:00 h) | 1000 × 2 = 2000 |
| Miscellaneous | 100 | 1 | 100 | 11 h (18:00 h − 05:00 h) | 100 × 11 = 1100 |
| Refrigerator | 500 | 1 | 500 | 9 h (08:00 h − 17:00 h) | 500 × 9 = 4500 |
| Sound/Music System | 100 | 1 | 100 | 1 h (04:00 h − 05:00 h) | 100 × 1 = 100 |
| Washing Machine | 280 | 1 | 280 | 1 h (09:00 h − 10:00 h) | 280 × 1 = 280 |
| Water bath | 1000 | 1 | 1000 | 2 h (03:00 h − 04:00 h; 18:00 h − 19:00 h) | 1000 × 2 = 2000 |
| Water pumping machine | 1000 | 1 | 1000 | 1 h (13:00 h − 14:00 h) | 1000 × 1 = 1000 |
| 21” TV with Decoder | 150 | 1 | 150 | 9 h (08:00 h − 17:00 h) | 150 × 9 = 1350 |
| 14” Television | 80 | 8 | 640 | 22 h (06:00 − 17:00 h; 18:00 h − 05:00 h) | 640 × 22 = 14080 |
| 21” Flat Screen TV | 100 | 1 | 100 | 24 (00:00 h − 24:00 h) | 100 × 24 = 2400 |
| Total | 69342W |
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