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Rooftop solar in Kottayam, built for Kerala roofs.

Cut your KSEB bill with a system sized to your home or business. Survey, design, installation and KSEB net-metering paperwork from a Kottayam-based team that stays around for service.

  • Homes, businesses & institutions
  • On-grid & hybrid with battery backup
  • KSEB net metering
  • PM Surya Ghar subsidy help
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Prefer to talk? Call +91 75610 02770

Serving Kottayam · Vaikom · Kallara · Cherthala · Ernakulam · Alappuzha and nearby areas

Two-storey home with rooftop solar panels among palm trees beside a river, in evening sun

Rooftop solar, from first survey to long-term service

Install it, connect it, keep it running. One team handles every stage.

Dark timber house with rooftop solar panels and warmly lit windows at dusk

Hybrid Solar with Battery Backup

Solar with a hybrid inverter and lithium battery, so your home keeps running when monsoon storms bring the lines down.

Learn more
See all 8 services, including net metering and site surveysView services

Popular rooftop solar systems

Typical sizes for homes and institutions in central Kerala. We confirm the right size from your bills and roof at the survey.

  • 3 kW

    For homes with moderate KSEB bills

    Generates about
    330 units/month
    Home subsidy
    up to ₹78,000
    • About 300 sq ft of shade-free roof
    • Tile, terrace or sheet-roof mounting
    • KSEB net-metering file included
    • Help with the full home subsidy
    More about 3 kW systems

  • 5 kW

    For larger homes with ACs and a pump

    Generates about
    550 units/month
    Home subsidy
    up to ₹78,000
    • About 500 sq ft of shade-free roof
    • Room to add an EV charger later
    • KSEB load and phase check included
    • Help with the home subsidy
    More about 5 kW systems

  • 6 kW and above

    For large homes, shops and institutions

    • Designed around your load and roof
    • Three-phase systems where KSEB requires them
    • Schools, hospitals and factories on request

  • Hybrid + battery

    For monsoon power cuts

    • Hybrid inverter and lithium battery
    • Keeps the lights, fridge and well pump running
    • Surplus still exported to KSEB

No fixed prices: cost depends on your roof type, the structure it needs and the brands you choose. Every quote is itemised.

PM Surya Ghar: Muft Bijli Yojana subsidy for home solar

Kerala homes installing rooftop solar can get central financial assistance, paid into your bank account once the system is installed, KSEB has fitted the new meter and the inspection is done. We take you through each step.

per kW, for the first 2 kW
₹30,000
for the 3rd kW
₹18,000
maximum, for systems of 3 kW and above
₹78,000

For individual homes. Housing societies and RWAs can get ₹18,000 per kW for common facilities such as lifts, pumps and EV charging.

Amounts as published on the official portal (checked October 2026). Subsidy amounts, eligibility and the application process are set by the central and state governments and change from time to time. We confirm the current rules for your property at the site survey.

How we help with the subsidy

  • A roof survey and the right size for your KSEB bills
  • Registration on the national rooftop solar portal
  • KSEB feasibility approval and net-metering paperwork
  • Installation, new meter and inspection
  • Guidance on the subsidy claim and documents

Why homes and businesses choose Green World Innovations

  • Sized from your KSEB bills

    We work from a year of your bills and your actual roof, not a standard package.

  • Every Kerala roof type

    Clay tiles, concrete terraces and sheet roofs over terraces, each with the right mounting to keep the rain out.

  • Built for monsoon and lightning

    Rust-resistant structures, sealed connections, proper earthing and surge protection.

  • KSEB file handled

    We prepare the net-metering application and follow it up with your section office through to the new meter.

  • Based in Kottayam district

    Our office is at Kalambukad, near Kallara, so surveys and service visits across central Kerala are easy to arrange.

  • Care through the seasons

    Pre-monsoon checks, post-monsoon cleaning and repairs, including for systems other companies installed.

Brands we install

Equipment from established makers, chosen for your roof, budget and backup needs. Your quote names the exact models.

Solar, inverters and electrical

  • TATA
  • Crompton
  • Panasonic
  • Deye
  • Growatt
  • GoodWe
  • L&T
  • Havells
  • Anchor
  • Polycab

How a solar project runs with us

Seven steps, and you know which one you're on.

  1. Step 1: First conversation

    Share your KSEB bills and tell us about your roof. We'll say plainly whether solar suits your home.

  2. Step 2: Free roof survey

    We check the roof type and condition, shade from palms and trees, and your electrical connection, at no charge.

  3. Step 3: Design and quote

    You see the layout, the mounting for your roof, expected generation and an itemised price.

  4. Step 4: Installation

    We install in dry weather, with structures and fixings suited to Kerala's rain and humidity.

  5. Step 5: KSEB paperwork

    We file and follow up the net-metering application, and guide you on subsidy documents where you're eligible.

  6. Step 6: Switch on

    Once KSEB fits the new meter, the system goes live and we show you the monitoring app.

  7. Step 7: Through the seasons

    Pre-monsoon checks, cleaning and repairs from the same team that installed your system.

See what solar could save you

  • Smaller KSEB bills

    Every unit your roof generates is a unit you don't buy from the grid.

  • Strong output before the monsoon

    The sunny months from January to May, when fans and ACs run hardest, are when solar generates most.

  • Less exposure to tariff revisions

    When tariffs are revised, the power you make yourself doesn't get dearer.

  • Easy to watch from anywhere

    A monitoring app shows generation on your phone, even for family members living abroad.

Rough estimate for your bill

₹5,000
₹1,000₹50,000
Suggested system
5.5 kW
about 550 sq ft of roof
Monthly generation
~605 units
Monthly bill reduction
~₹3,933
about ₹47,196 a year

If this is your home, a 5.5 kW system may qualify for a subsidy of about ₹78,000 under PM Surya Ghar: Muft Bijli Yojana.

Illustrative only. It assumes about 6.5 ₹ per unit and 110 units per kW each month. Real figures depend on your roof, shading, tariff slabs and usage. We confirm the numbers at the site survey. For commercial or industrial roofs, request a proposal.

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Questions we hear most

Read all FAQs

Tell us about your roof

Share a few details and our solar team will get back to you. A site survey is the next step, and nothing is decided on the phone.

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