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Calculating Payback LED-EL-01

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  2. LED-based illumination
  3. CALCULATION OF MERCHANTABILITY LED-EL-01
Comparative approximate calculation of the payback period of office lightings based on LEDs and fluorescent lamps
LED lighting LED-EL-01, an analogue of recessed fluorescent lamp for illumination of public buildings 4x18, 595h595 (consumption 28W)
Number of years count (pcs.) yearly consumption(24 hours/ day),kW price for 1 kW, UAH. (yearly +10% ) consumption bill, UAH price of a lighting+ bulbs UAH cost of bulbs replacement LED-EL-01 
1 1,00 245,28 1,05 257,54 1866,00 - 2123,54
2 1,00 245,28 1,16 283,30 - - 2406,84
3 1,00 245,28 1,27 311,63 - - 2718,47
4 1,00 245,28 1,40 342,79 - - 3061,26
5 1,00 245,28 1,54 377,07 - - 3438,33
6 1,00 245,28 1,69 414,78 - - 3853,11
7 1,00 245,28 1,86 456,25 - - 4309,36
8 1,00 245,28 2,05 501,88 - - 4811,24
9 1,00 245,28 2,25 552,07 - - 5363,31
10 1,00 245,28 2,48 607,28 - - 5970,59
Fluorescent lighting of raster type recessed fluorescent lamp for illumination of public buildings 4x18, 595h595 (consumption 85,4W)
Number of years count (pcs.) yearly consumption(24 hours/ day),kW price for 1 kW, UAH. (yearly +10% ) consumption bill, UAH price of a lighting+ bulbs UAH cost of bulbs replacement ЛЛ 4х18
1 1,00 748,11 1,05 785,52 280,00   1065,52
2 1,00 748,11 1,16 864,07     1 929,58
3 1,00 748,11 1,27 950,47 80,00   2960,06
4 1,00 748,11 1,40 1 045,52     4005,58
5 1,00 748,11 1,54 1 150,07 80,00   5235,65
6 1,00 748,11 1,69 1 265,08     6500,73
7 1,00 748,11 1,86 1 391,59 80,00   7972,32
8 1,00 748,11 2,05 1 530,75     9503,07
9 1,00 748,11 2,25 1 683,82 80,00   11266,89
10 1,00 748,11 2,48 1 852,20     13119,09
окупаемость ЛЛ1 окупаемость ЛЛ2

This simplified calculation shows that the payback period of the LED lighting LED-EL-01 compared to the same lamp-based FL (fluorescent lamps) is up to up to 2.5 years. The calculation does not take into account the average cost of the f lamp replacement, it also does not considered the possibility of using a smaller cross-section of the cable and therefore cost of savings.

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