Your monthly KSEB bill is the starting point for sizing a rooftop solar system — roughly, every unit (kWh) you consume daily points toward how many panels you'll need to offset it.
A typical home consuming 300 units a month can often be served by a 3–5 kW system, depending on roof space and sunlight hours. Businesses with higher daytime loads usually see faster payback, since they consume more of what they generate in real time rather than exporting it back to the grid.
Payback periods for residential systems in Kerala commonly fall in the 4–6 year range, with the system continuing to produce for 20–25 years after that — meaning the bulk of its working life is pure savings.
The exact numbers depend on your roof orientation, shading, and current tariff slab, which is why a site survey matters more than any generic calculator.
What net metering means for a grid-tied system and what to check before commissioning.
LiFePO4 batteries cost more upfront but last longer and need less maintenance.
Battery Energy Storage Systems can shave peak-demand charges for commercial sites.
Get a free site survey and a system sized right for your roof and your bill.
