Note: These
calculations are estimates. Actual performance may vary based on
location, panel orientation, shading, and system efficiency. CEB
approval is required for grid connection.
Reference:
Calculations are based on real-world generation data for Sri
Lankan conditions.
Current Electricity Tariff Structure (CEB
Domestic)
Units (kWh)
Rate (Rs./kWh)
Fixed Charge (Rs.)
0 - 60
13.00
235
61 - 90
16.60
475
91 - 120
23.65
1,185
121 - 180
39.05
1,775
Above 180
61.55
2,370
Solar System Generation Reference
System Size (kW)
Panel Count (620W)
Panel Area (sqft)
Monthly Generation (kWh)
5
10
320
550-600
6
11
352
650-700
8
14
448
850-950
10
18
576
1000-1200
15
28
896
1750-1800
20
36
1152
2300-2400
Note: This
calculator uses the standard CEB domestic tariff rates. Actual bills
may vary slightly due to taxes and other charges.
