Research Article
Energy Audit of a Residential Building to Reduce Energy Cost and Carbon Footprint for Sustainable Development with Renewable Energy Sources
Table 14
Final cost savings and payback calculation.
| Daily energy usage (no energy-saving measures in place) | 5039.8 kWh |
| Reduced energy usage per day (using efficient appliances) | 4268.848 kWh |
| Energy generated by the PV system per day (peak) | 40 kWh |
| Effective total energy usage per day | 4228.848 kWh |
| Reduction in daily total energy usage | 810.952 kWh |
| Reduction in yearly total energy usage | 295997 kWh |
| Percentage reduction in energy usage | 16.09% |
| Total investment cost | 8470950 ₹ |
| Total daily savings | 7298.568 ₹ |
| Yearly savings | 2663977.32 ₹ |
| Payback period | 3.179 years |
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