What drives the cost
What determines the cost of a solar system in Kochi & Ernakulam
We do not publish package prices, because a price that is not based on your roof and your bills is not a price. It is a guess.
We do not publish prices, and we would rather explain why than give you a number that turns out to be wrong. The cost of a rooftop system depends on your roof, your consumption and the components chosen, and on a Kerala roof, on how exposed the…
The variables
What actually changes the number
The roof
✓ Usable shade-free area
✓ Roof type and mounting method
✓ Height and access for materials
✓ Structural strengthening, if needed
The system
✓ Capacity in kilowatts
✓ Panel and inverter selection
✓ On-grid, hybrid or off-grid
✓ Battery capacity, if any
The connection
✓ Single or three-phase
✓ Sanctioned load changes, if needed
✓ Cable run from roof to meter
✓ PM Surya Ghar eligibility
WORK IT OUT
Put in one KSEB bill.
One question, one answer: how many kilowatts of solar does your home actually need?
✓ System size matched to your actual consumption
✓ Your exact PM Surya Ghar subsidy entitlement
✓ Expected monthly generation and roof area needed
₹10,500
Based on 1,400 units per kW per year at KSEB’s upper slab rates of ₹6.75–8.00 a unit. A 3 kW system generates about 4,200 units and saves roughly ₹31,500 a year.
*Generally an amount you receive for your residential or commercial bill.
Printed on your bill. It differs between slabs.
We need a name and a number to send your result and to call you back about a free survey.
Questions
Cost, answered honestly
System size
Driven by your consumption and usable shade-free roof area. This is the largest single factor.
Corrosion exposure
On the backwater belt – Panangad, Kumbalam, Nettoor, Thevara, Aroor – the structure and fixings must be specified for brackish air. That specification costs more and is not optional.
Connection and phase
Systems from around 6 kW upwards generally need a three-phase connection. A conversion, if needed, is a real cost.
Roof type and mounting
A Mangalore-tiled roof, a sheet roof and an RCC flat slab need different structures. If the roof needs strengthening first, that is separate work.
Inverter type
A string inverter, a hybrid inverter with a battery, or micro-inverters for a shaded roof are three different cost positions.
Subsidy reduces what you pay
For residential connections, PM Surya Ghar pays ₹30,000 per kW for the first 2 kW, ₹18,000 for the third, capped at ₹78,000. Commercial connections are not eligible.
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Official sources
The tariff slab rates referred to on this page are KSEB’s published domestic tariffs, approved by the State Electricity Regulatory Commission. They are revised from time to time.
Kerala State Electricity Regulatory Commission: erckerala.org
SunKraft Solar is not affiliated with any of these bodies. The links are provided so you can verify the scheme and tariff facts stated on this page.
Questions
Cost, answered
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Cost & subsidy
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