Pay Back Analysis
| Light | HPSV | LED |
|---|---|---|
| Power | 150 | 55 |
| Ballast/Chowk | 30 | 5 |
| Initial Light Cost | 3500/- | 7000/- |
| Unit Consume per Year | 150+30x12x365/1000 | 55+5x12x365/1000 |
| Total Unit Price | 788 | 263 |
| Total Unit x Total Price | 788×7.5 | 263×7.5 |
| Per Year Light Bill | 5910 | 1972 |
| Replacement if Default | 250 | 0 |
| Chowk/Ballast | 750 | 0 |
| Total Cost per Year | 6910 | 1972 |
| Saving Per Year | 6910-1972=4938 | |
| Initial Investment | 7000-3500=3500 | |
| Payback per year | 3500/4938=0.708 Year | |
| Month | 0.708 x 12 month=8.5 month | |
| Days | Within 250 Days | |
| Light | HPSV | LED |
|---|---|---|
| Power | 250 | 90 |
| Ballast/Chowk | 35 | 5 |
| Initial Light Cost | 4160/- | 18000/- |
| Unit Consume per Year | 250+35x12x365/1000 | 90+5x12x365/1000 |
| Total Unit Price | 1248 | 416 |
| Total Unit x Total Price | 1248×7.5 | 416×7.5 |
| Per Year Light Bill | 9424 | 3120 |
| Replacement if Default | 400 | 0 |
| Chowk/Ballast | 500 | 0 |
| Total Cost per Year | 10324 | 3120 |
| Saving Per Year | 10324-3120=7204 | |
| Initial Investment | 18000-4160=13840 | |
| Payback per year | 4160/7204=0.577 Year | |
| Month | 0.577 x 12 month=6.9 month | |
| Days | Within 190 Days | |