Rooftop solar panels on a large modern home

Sun over Cherthala

Cherthala · Kochi · Alappuzha · Kottayam

Solar panel installation for homes in Kerala.

Q: What size solar system do I need for my home?

For most typical Kerala households consuming 300 to 450 units a month, a 3kW to 4kW on-grid solar plant delivers approximately 90% bill reduction while maximizing the ₹78,000 PM Surya Ghar central subsidy.

Q: How much terrace space is required for solar installation?

You need about 100 sq ft of shade-free roof for each kilowatt. A 3 kW system needs about 300 sq ft, and a 4 kW system about 400 sq ft. Elevated pergola structures can also preserve 100% of usable floor space.

Q: How do I get the ₹78,000 PM Surya Ghar subsidy in Kerala?

We submit the national portal documents, coordinate the KSEB inspection and follow up until the subsidy reaches your bank account. It usually arrives about 30 days after your bank details are accepted.

Q: What if my KSEB transformer has zero headroom?

We provide three tested engineering solutions: (1) Filing for DTR transformer capacity augmentation with KSEB, (2) Zero-Export limitation for 100% daytime self-consumption, or (3) Feeder transfer to an adjacent line with surplus headroom.

Q: How long does solar panel installation take in Kerala?

Physical installation of a 3kW to 5kW residential solar plant takes 1 to 2 days. The complete process including KSEB net-metering approval, feasibility inspection, and bi-directional meter installation usually takes 15 to 25 days.

Q: How does rooftop solar generation work during monsoon weather in Kerala?

Bifacial Tier-1 solar panels generate electricity from direct, diffused, and reflected sunlight. While peak output is highest during clear days, modern solar panels continue generating 25% to 40% of their rated capacity even under overcast monsoon skies.

Q: Will solar panels work during a power cut?

An on-grid system switches off when KSEB supply fails, for the safety of line workers, so it gives no backup. For backup, choose a hybrid system with a battery, or keep your existing inverter and UPS.

Q: What maintenance is required for residential rooftop solar panels?

Rooftop solar systems have no moving parts. Periodic rainwater washing keeps panels clean in Kerala. Routine inspection of AC/DC protection boxes, lightning arresters, and chemical earthing pits every 6 months ensures optimal generation.

Rooftop solar engineered for Kerala’s rain and coastal wind, with KSEB net metering and your ₹78,000 PM Surya Ghar subsidy handled for you.

Type your monthly KSEB bill. Works for any bill up to ₹2,00,000.

Up to ₹78,000 subsidy PM Surya Ghar, filed for you Tier-1 550 Wp bifacial DCR panels Adani · Waaree · Vikram KSEB net-metering handled Feasibility to commissioning Chemical earthing & lightning protection Excel Earthing 25-year panel performance warranty ≥ 80% at 25 yrs

KSEB feasibility guide

Check transformer solar headroom.

Under KSERC regulations, rooftop solar injection is permitted up to 90% of your distribution transformer (DTR) rating. Follow the guide to check real-time transformer headroom on KSEB's official portal.

Find your consumer number and electrical section on your KSEB bill.
Open the reCap portal and enter them to see your transformer’s remaining solar capacity.
No headroom? We file for augmentation, use zero-export, or arrange a feeder transfer.

Distribution transformer capacity

0%Solar allowed up to 90%100%

KSEB reCap Feasibility Portal
wss.kseb.in Open the reCap portal

Read the full KSEB feasibility guide

Complete engineering blueprint

See what your system includes.

Every system uses Tier-1, quality-certified components. Here is how they connect into your KSEB meter, and exactly what goes on your roof.

550 Wp Bifacial Panels21.5% efficiency

On-Grid Inverter>98% efficiency

DCDB · ACDB · Earthing<5Ω ground

KSEB Net MeterBill cut by up to 90%

See full equipment specs, brands & warranty

Government subsidy Direct DBT

Cut your KSEB bills by up to 90%.

Under the PM Surya Ghar Muft Bijli Yojana, residential installations in Kerala receive direct bank transfer subsidies with rapid payback. We handle the paperwork.

How the subsidy works

₹78,000

Central Subsidy

For 3kW+ capacity

3.2 – 4yrs

Typical Payback

25-year panel warranty

5-stage engineering timeline

Our installation process.

From first shadow audit to KSEB net-meter sync, we manage every step with certified in-house engineers.

Site & Shadow Audit

Onsite 3D solar irradiance modeling on your RCC terrace.

System CAD Design

Single Line Diagram (SLD) & KSEB paperwork.

Certified Installation

Heavy-duty GP structure & 10-12° South tilt.

Testing & Net Metering

Megger test, earth check (<5Ω), DISCOM sync.

Power Your Home & App

Monitoring app on your phone & a 5-year system warranty.

Learn more: Quality & Safety Standards

Zero Terrace LeakageWe anchor with EPDM chemical gaskets to safeguard concrete roofs.

Wind ResistanceKerala monsoons demand structural certification up to 150+ km/h wind speeds.

Surge ProtectionType-2 SPDs in both AC and DC switchgear plus dedicated copper lightning arresters.

Sample proposal

See exactly what our quote looks like.

This is a real 3 kW proposal we prepared for a Kerala home, with the customer's name and address and our bank details removed. Its six pages cover the components and makes, the price, KSEB fees, payment terms, timeline and warranty.

Download the sample PDF, 6 pages, 530 KB

Engineering quality

Why Suryavamshi?

Your panels carry a 25-year performance warranty, so we engineer every roof without cutting corners.

In-House Engineering

Directly employed solar technicians. No third-party sales brokers or sub-contractors.

3-Pit Chemical Earthing & LA

Dedicated bentonite pits (<5Ω resistance) and copper lightning arresters for surge protection.

KSEB Feasibility & DTR Liaison

End-to-end management of transformer headroom permits, net-meter installation, and Soura portal sync.

25-Year Panel & 5-Year System Warranty

Panels keep at least 90% output at 10 years and 80% at 25 years. Inverters carry the maker's 5–10 year warranty. Free inspection visits during the warranty.

Cherthala • Kochi • Alappuzha • Kottayam

Ready to switch your home to solar?

Our certified engineers will visit your Kerala home for 3D shadow analysis, roof structural evaluation, and customized sizing.

Request Free Site Assessment +91 9061626868

System types

Rooftops we design for.

See system examples

Solar panels on a raised steel frame above a home's terrace — **Elevated pergola**Panels on a raised frame, terrace stays free

Solar panels on a low frame on a flat terrace, with the inverter on the wall — **Flat terrace**Low-tilt frame, inverter on the wall

Solar panels across the flat roof of a commercial building — **Commercial rooftop**Larger on-grid plant for offices and institutions

Frequently asked questions

Got questions? We have answers.

Still unsure? Call +91 9061626868 and talk to an engineer directly.

What size solar system do I need for my home?

For most typical Kerala households consuming 300 to 450 units a month, a 3kW to 4kW on-grid solar plant delivers approximately 90% bill reduction while maximizing the ₹78,000 PM Surya Ghar central subsidy.

How much terrace space is required?

You need about 100 sq ft of shade-free roof for each kilowatt. A 3 kW system needs about 300 sq ft, and a 4 kW system about 400 sq ft. Elevated pergola structures can also preserve 100% of usable floor space.

How do I get the ₹78,000 PM Surya Ghar subsidy?

We submit the national portal documents, coordinate the KSEB inspection and follow up until the subsidy reaches your bank account. It usually arrives about 30 days after your bank details are accepted. Read the PM Surya Ghar subsidy guide.

What if my KSEB transformer has zero headroom?

We provide three tested engineering solutions: (1) Filing for DTR transformer capacity augmentation with KSEB, (2) Zero-Export limitation for 100% daytime self-consumption, or (3) Feeder transfer to an adjacent line with surplus headroom. See the KSEB feasibility guide.

How long does solar panel installation take in Kerala?

Physical installation of a 3kW to 5kW residential solar plant takes 1 to 2 days. The complete process including KSEB net-metering approval, feasibility inspection, and bi-directional meter installation usually takes 15 to 25 days.

How does rooftop solar generation work during monsoon weather in Kerala?

Bifacial Tier-1 solar panels generate electricity from direct, diffused, and reflected sunlight. While peak output is highest during clear days, modern solar panels continue generating 25% to 40% of their rated capacity even under overcast monsoon skies. How solar performs in the Kerala monsoon.

Will solar panels work during a power cut?

An on-grid system switches off when KSEB supply fails, for the safety of line workers, so it gives no backup. For backup, choose a hybrid system with a battery, or keep your existing inverter and UPS. Compare on-grid and hybrid solar.

What maintenance is required for residential rooftop solar panels?

Rooftop solar systems have no moving parts. Periodic rainwater washing keeps panels clean in Kerala. Routine inspection of AC/DC protection boxes, lightning arresters, and chemical earthing pits every 6 months ensures optimal generation.

Turning Kerala’s sunshine into reliable, affordable power.

www.suryavamshi.com +91 9061626868

@suryavamshi_solarprojects Suryavamshi SOLAR Projects

Request Free Site Assessment