Rooftop Solar in Coimbatore.

Tier 1 Panels. Subsidy Handled.

Big Savings on Bills.

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Tier 1solar panels only
Subsidypaperwork handled for you
SIDCOgovernment projects delivered
Coimbatorebased team & service
Rooftop Solar by Cascade

Rooftop solar for homes, businesses and factories in Coimbatore

Cascade designs and installs on-grid rooftop solar systems with Tier 1 panels and structures fabricated in our own Coimbatore facility. We take care of everything from the site survey and design to installation, net metering and your PM Surya Ghar subsidy application, and we stay with you afterwards with monitoring and annual maintenance.

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How It Works

From enquiry to savings in four steps

  1. Free site surveyWe inspect your roof, shading and electricity bill.
  2. Design & quoteA system sized to your usage, with a clear, itemised quote.
  3. Installation in 7 daysStructure, panels, inverter and wiring by our own team.
  4. Net meter & subsidyWe file the electricity board approvals and your subsidy application.
Why Cascade Solar

Built Right, From Roof to Grid

Approvals & Subsidy Handled

All approvals, net-metering and subsidy documentation handled by our team, free of cost.

Service Support

Regular monitoring and an Annual Maintenance Program to keep panels performing.

Fast Rooftop Solar Installation

Setup completed within just 7 days with modular, ready-to-install designs.

Strong and Reliable Solar Roof Structures

Rust-proof, cyclone-proof, and built to withstand extreme weather.

Quality Control of Solar Panels

In-house testing with I-V curve tracers and solar irradiance meters.

Intelligent Panel Placement

Positioned for maximum sunlight based on shadow analysis and roof conditions.

Efficient Inverter Connections

Wiring by in-house engineers, built safe and resistant to heat, UV, and moisture.

Personalised Rooftop Setup

Structures designed to match the aesthetic of your home or building.

Our Projects

Residential, Commercial & Government Projects

Free Site Survey

Get a FREE Expert Opinion From Our Team

Share your monthly bill and we’ll call you back within working hours with a system size and a tailored quote.

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+91 7708910660 Chat on WhatsApp



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    Frequently Asked Questions

    How much does a rooftop solar system cost?
    The cost depends on system size, panel brand, roof type and structure height. After a free site survey we give you an itemised quote, and for homes we also show your cost after the government subsidy.
    What size system do I need?
    We size the system from your electricity bill and roof space. As a rough guide, each 1 kW needs around 60 sq ft of shade-free roof. Share your bill and we’ll recommend the right size.
    How does a rooftop solar system work?
    Solar panels convert sunlight into electricity, and an inverter turns that power into the form your home or building uses. The system usually includes a combiner box and energy meter, and connects to the grid with optional battery storage.
    Can solar panels be installed on any roof?
    Yes, on any roof that can bear the weight of the panels. Each panel weighs approximately 30–35 kg, and we check the roof’s strength during the site survey.
    Which solar panel brands do you install?
    We install panels from any Tier 1 manufacturer. Tier 1 brands give you confidence in efficiency, durability and long-term warranty support. We’ll help you choose the right one for your budget, roof space and energy needs.
    How much electricity will my system produce?
    On average, about 4–9 units per kW per day, depending on the panel model and roof conditions.
    What government subsidy is available, and how do I get it?
    Homes are eligible for the central PM Surya Ghar subsidy, and Tamil Nadu has announced additional state support. The subsidy is credited to your bank account after installation and inspection via pmsuryaghar.gov.in. Our team files the application for you.
    What warranty do I get?
    Solar panels come with a 30-year warranty and the inverter with a 7-year warranty, both from the manufacturers. Our team helps you with any warranty claims.
    How does solar perform on cloudy or rainy days?
    Generation drops on cloudy and monsoon days, but averaged over the year, output stays around 4–9 units per kW per day depending on the model.
    What maintenance is needed?
    Mainly regular cleaning of the panels to remove dust, plus periodic checks of wiring and the inverter. Our Annual Maintenance Program covers this for you.
    What is net metering?
    A system that credits you for excess electricity your panels send to the grid, using a bi-directional meter to track energy consumed versus supplied.
    Do you install outside Tamil Nadu?
    Yes, we install rooftop solar across India. Our structure fabrication is in Coimbatore, and we send our team for an on-site assessment, ship the panels, inverter and mounting hardware to you, and coordinate installation and commissioning on site. After-sales service is handled through our nationwide support network.
    What regulatory approvals are required?
    For plants above 20 kW, a building and structure stability certificate and a safety certificate from the electricity board are required before grid connection. We arrange these for you.
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