Questions? We’ve got answers.

We make N-type TOPCon glass-to-glass modules (G12R 600–640 Wp and M10R 580–600 Wp) and Mono PERC half-cut modules (505–560 Wp) in monofacial and bifacial versions, in DCR and Non-DCR variants. See all Solar Modules.

TOPCon modules use N-type cells with higher efficiency (up to 23.67%), lower degradation and better performance in heat and low light, backed by a 30-year linear warranty. Mono PERC is a proven, cost-effective choice for rooftops, with up to 21.29% efficiency and a 27-year linear warranty.

A bifacial module generates power from both its front and rear sides. Depending on ground reflectance and mounting height, the rear side can add roughly 5% to 30% extra energy, which makes bifacial modules well suited to ground-mounted, elevated and floating plants.

DCR (Domestic Content Requirement) modules use solar cells made in India and are required for government-supported schemes such as PM Surya Ghar and PM-KUSUM. Non-DCR modules suit commercial, industrial and private projects that do not need DCR compliance. Oswal Solar offers both.

Yes. Our modules are BIS certified and listed in MNRE’s Approved List of Models and Manufacturers (ALMM), and are IEC certified. Our operations are certified to ISO 9001, ISO 14001 and ISO 45001. View certificates.

All modules carry a 12-year product and workmanship warranty. The linear power warranty is 30 years for TOPCon modules and 27 years for Mono PERC modules.

Single-phase on-grid inverters from 1 kW to 6 kW and three-phase on-grid inverters from 5 kW to 350 kW, with up to 98.3% efficiency, IP65 protection, Wi-Fi monitoring and a 10-year standard warranty. See On-Grid Inverters.

It depends on your electricity connection and system size. Most homes with a single-phase connection use a single-phase inverter; larger homes, businesses and industries with a three-phase connection use a three-phase inverter. Our team will recommend the right model for your site.

The cost depends on system size, module technology (TOPCon or Mono PERC), DCR or Non-DCR modules, mounting structure and site conditions. Call us toll-free on 1800 120 1882 or send an enquiry for a free site assessment and quotation.

As a rule of thumb, about 80–100 sq ft of shadow-free roof area is needed per kW. Our free site survey confirms the exact layout and capacity for your roof.

Residential rooftop systems that use DCR modules can be eligible for central financial assistance under the PM Surya Ghar scheme, subject to scheme rules. Our team helps with the documentation and DISCOM approvals.

Net metering lets you export surplus solar power to the grid through a bi-directional meter installed by your DISCOM. Exported units are adjusted against the units you consume, which lowers your electricity bill. We handle net-metering, gross-metering and zero-export setups.

Yes. Our EPC team handles the site audit, system design, government approvals, installation, commissioning, utility interconnection and ongoing monitoring and maintenance, for residential, commercial, industrial and agricultural projects. See EPC Solutions.

Yes. We offer easy solar loans in three steps: submit the loan form, complete the credit assessment and site visit, and get the loan approved. Contact us to apply.

Quality solar modules generate power for 25 to 30 years and more. Oswal modules are backed by a 27-year (Mono PERC) or 30-year (TOPCon) linear power warranty.

Very little. Clean the modules periodically to remove dust and get the system inspected from time to time. We also offer annual maintenance contracts and O&M services.

Yes. Oswal Solar has 200+ service centres and 500+ Solar Shoppe outlets, so help is never far away.

Fill in the form below or call toll-free on 1800 120 1882, and our channel team will get in touch with you.

Download the Product Catalogue 2026 and the Corporate Profile.