Please use the below automated calculators developed by our Technical Experts and IT Engineers for ease of calculations pertaining to your investment, savings, payback period and overall return on investment.
While the energy costs in Rwanda are very high the good news for all consumers and users of LED & Solar Lights is that the payback period is relatively low, which makes LED lights economically a good investment. Moreover environmentally friendly LED & Solar Lighting products and solutions reduce the carbon footprint of all Rwandese Citizens thereby leaving behind a better tomorrow for the future generations.
Please enter value in the cells marked red
Conventional | LED Replacement | |
No. of Fixtures | ||
Fixture Wattage (W) | ||
Total Wattage (W) | ||
Daily Operating Hours (hrs) | ||
Annual Operating Hours | ||
Total kWh per year (kWh) | ||
kWh Cost(RWF) | ||
Annual Power Cost | ||
Monthly Energy Savings | ||
Annual Energy Savings |
Units (KWH) per year
100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 0 |
86724
|
39420
|
Power cost in (Rwandan Francs)
1000000 900000 800000 700000 600000 500000 400000 300000 200000 100000 0 |
780516
|
354780
|
Fixture Cost (Lamp Cost) | ||
Fixture Lifetime (in Hrs)(lamp) | ||
Fixture Install Time (Min) | ||
Ballast Cost | ||
Ballast Lifetime(hrs) | ||
Ballast Install Time | ||
Hourly Rate per Labourer | ||
Number of Labourers | ||
Annual lamp Cost | ||
Annual Ballast Maintenance Cost | ||
Maintenance & Ballast (per fixture/year) | ||
Annual Maintenance Savings |
Fixture Cost (Lamp Cost)
Ballast Cost
Annual lamp Cost
Annual Ballast Maintenance Cost
100 90 80 70 60 50 40 30 20 10 0 |
40% |
8% |
38% |
14% |
Cost of Materials | |
Cost of Installation | |
Total Initial Investment |
Total Annual Savings | |
Rate of Return | |
Payback period in Months |
3500000 3150000 2800000 2450000 2100000 1750000 1400000 1050000 700000 350000 0 |
-1152000 |
-668882 |
-185765 |
297351 |
780468 |
1263585 |
1746702 |
2229819 |
2712936 |
3196053 |
Years | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |