1 | DC fan | 20 | 36 | 720 | 6 | 4320 |
2 | Energy Saver Lights | 20 | 12 | 240 | 6 | 1440 |
| | | | 960 | | 5760 |
| | | | | | |
| Load = | | | | 5760 | WH |
| Current required for Aplinces | Total watts/System voltage | | | 80 | A |
| Average daily sunny hours in project area | | | | 12 | hrs |
| Required Backup time | | | | 1 | hrs |
| System Voltage | | | | 12 | V |
| Design of Battery | | | | | |
| Backuptime (Hr)xLoad(watts)/System voltage | | | | 80 | Ah |
| add Eff. @ 90 % | | | | 88.8888888889 | Ah |
| add 80 % DoD | | | | 111.111111111 | Ah |
| Des Amp. Hrs | | | Say | 111 | Ah |
| Proposed Battery Size | | | | 110 | Ah |
| No of Batteries | | | | 1.00909090909 | No |
| | | | Say | 1 | No |
| Design of Solar Panels | | | | | |
| Current required for Applinces = total watts/system voltage | | | | 80 | A |
| Current required for Battery = 60% DoD/average daily sunny hrs | | | | 9.25925925926 | A |
| Total current required | | | | 89.2592592593 | A |
| Lets Take currents for applinces | | | | | |
| Power for Solar Panel required = total current required x system voltage | | | | 960 | W |
| add 20 % losses ( lossess + conductor effeiciency) | | | | 1152 | W |
| Proposed Size of panel | | | | 250 | No |
| No of Panels | | | | 4.608 | No |
| | | | Say | 4 | No |
| Design of Charge Controller | | | | 96 | A |
| Proposed Size of Charge controler | | | | 110 | A |
| No of Charge Controlers | | | | 0.872727272727 | No |
| | | | say | 1 | No |