Introduction
India’s rooftop solar market is expanding, and choosing the right inverter has become just as important as selecting solar panels. The inverter converts DC electricity generated by solar panels into usable AC electricity
and plays an important role in system efficiency, monitoring and protection. If you are searching for the Top 5 Solar Inverter Brands in India 2026, this comparison covers SUNSATHI Solar, Microtek, Polycab, Grönsol and Growatt. Each brand has a different product portfolio and application focus. The right choice depends on system type, capacity, backup requirement, rooftop conditions, budget and after-sales support.
What Is an On-Grid Solar Inverter?
An on-grid solar inverter converts the direct current generated by solar panels into alternating current compatible with your property’s electricity supply and the grid. However, a standard grid-tied system does not provide backup during a power cut. For safety, it stops supplying power when the grid fails, even if sunlight is available.
Top 5 On-Grid Solar Inverter Brands in India
1. Sunsathi Solar
SUNSATHI Solar is an Indian solar inverter company whose published product information covers On-Grid, Hybrid and Micro Inverter solutions. Its published range includes grid-tie products from 1.0 KW to 125 KW, with
applications across residential, commercial and industrial solar systems. Its multiple inverter categories make it relevant to different rooftop requirements rather than only one system architecture.
- SUNSATHI On-Grid Solar Inverter
On-grid inverters are designed for solar systems connected to the utility grid. SUNSATHI’s published single-phase grid-tie range includes models from 2.4 KW to 6.4 KW, with single/dual MPPT configurations depending on the model. Published features include low startup voltage, IP66 protection, OLED display, Wi-Fi/GPRS monitoring, string-level monitoring and HERIC topology for applicable single-phase models. For larger projects, SUNSATHI lists single- and three-phase grid-tie products extending up to 125 KW. - SUNSATHI Hybrid Solar Inverter
A hybrid inverter combines solar generation with battery storage and grid power. SUNSATHI’s published hybrid range includes 3KW to 8KW single-phase models. Product material highlights 20A maximum PV input current, less than 10 ms transfer time, diesel-generator support and smart-load integration. This category is relevant for users who want solar savings together with battery-backed power during grid interruptions. - SUNSATHI Micro Inverter inverters work at the module level instead of using one central string inverter for the entire PV array. SUNSATHI lists Micro Inverters as one of its three main inverter solution categories, alongside On-Grid and Hybrid products. They can be considered for modern rooftop installations where module-level power conversion and system flexibility are important.
2. Microtek
Microtek has a broad Indian portfolio covering solar solutions, power backup and electrical products. In addition, its current website lists Solar Power Conditioning Units, Solar Grid-Tied Solutions, Solar Batteries and Solar Hybrid Inverter categories. Its solar range includes grid-tied systems and solar PCUs, while its hybrid solutions combine solar, battery and grid operation for backup-oriented applications. Depending on the selected product, these solutions can suit residential solar, shops, commercial systems and users with backup needs.
3. Polycab
Polycab has expanded its solar business beyond its established electrical-product portfolio. Currently, its solar range includes grid-tie inverters for residential, commercial, industrial and utility-scale applications. In addition, the company stated that it planned to expand into hybrid inverters and battery energy storage systems during FY2026-27. Depending on the selected model, its products can suit residential rooftops as well as large commercial and utility-scale projects.
4. Grönsol
Grönsol’s current product information lists On-Grid, Hybrid and Micro Solar Inverters, along with lithium battery solutions. Together, these products cover residential, commercial and industrial applications. Its on-grid portfolio includes single-phase and three-phase models, while its micro-inverter range offers several small-capacity options. In addition, Grönsol announced a solar inverter manufacturing facility in India in January 2026. Depending on the selected model, its products can suit residential rooftops, commercial installations and larger solar projects requiring different inverter configurations.
5. Growatt
Growatt’s official portfolio includes On-Grid PV Inverters, Microinverters and Hybrid Inverters, alongside battery systems and other energy-storage products. Its on-grid range covers residential, commercial, industrial and utility-scale applications, with single- and three-phase options. Best suited for: Homes and larger solar projects, depending on the selected model. Confirm the chosen model’s Indian availability, panel and battery compatibility, written warranty and local service support before purchase.
Quick Comparison of All Five Brands
| Brand | Main solutions / focus | Suitable applications |
|---|---|---|
|
SUNSATHI Solar |
On-Grid, Hybrid, Micro; MPPT, monitoring and
protection
|
Homes, commercial, industrial &
EPC |
|
Microtek |
Grid-Tied, Solar PCU, Hybrid; solar and backup portfolio |
Homes, shops, commercial &
backup |
|
Polycab |
Grid-Tie, utility-scale; hybrid/BESS expansion |
Polycab Grid-Tie, utility-scale; hybrid/BESS expansion Residential to utility-scale
|
|
Grönsol |
On-Grid, Hybrid, Micro; inverter and storage options |
Residential, commercial & industrial |
|
Growatt |
On-Grid, Hybrid, Micro; inverter and energy-storage
options
|
Residential to utility-scale,
model-dependent |
What Should You Compare Before Buying a Solar Inverter?
- Inverter type: Choose On-Grid, Hybrid or Micro according to the system requirement.
- System capacity: Match the inverter to the planned solar capacity and load.
- Panel compatibility: Check PV voltage and current limits.
- MPPT capability: Compare MPPT configuration and operating range.
- Efficiency: Check the exact model’s rated efficiency.
- Safety: Review protections such as anti-islanding, SPD and overload protection.
- Monitoring: Consider Wi-Fi, LAN or app-based monitoring where required.
- Warranty: Check the exact model and warranty terms.
Service - support: Confirm technical and after-sales assistance in your area.
Future - expansion: Consider whether the system may need additional capacity later.
Conclusion
The Top 5 Solar Inverter Brands in India 2026 covered here—SUNSATHI Solar, Microtek, Polycab, Grönsol and Growatt—offer different solar inverter solutions. Among these, SUNSATHI stands out in this comparison for its published portfolio of On-Grid, Hybrid and Micro Inverters. Together, these categories give users options for grid-connected solar, battery-backed systems and module-level rooftop applications.However, the right inverter depends on your solar capacity, electricity usage, grid conditions, backup needs, rooftop design, budget and service expectations. Therefore, always compare the exact model specifications before installation.
FAQs
Which are the Top 5 Solar Inverter Brands in India in 2026?
This article covers SUNSATHI Solar, Microtek, Polycab, Grönsol and Growatt. Their product ranges andntechnologies differ, so buyers should compare exact models rather than choosing only by brand name.
What types of solar inverters does SUNSATHI offer?
SUNSATHI’s offers On-Grid, Hybrid and Micro Inverters.
IS SUNSATHI suitable for residential solar?
Yes. SUNSATHI single-phase on-grid models suitable for residential rooftops, while its hybrid
and micro-inverter categories address additional residential requirements.
What is the difference between an On-Grid and Hybrid Inverter?
An on-grid inverter is designed primarily for a grid-connected solar system, while a hybrid inverter cancoordinate solar, grid power and battery storage.
What is a Micro Inverter?
A micro inverter is a small inverter installed at individual solar panel level.
Why is MPPT important in a solar inverter?
MPPT, or Maximum Power Point Tracking, helps the inverter operate the solar array near its available maximum power point as sunlight conditions change.
What should I check before buying a solar inverter?
Check inverter type, capacity, PV voltage and current limits, MPPT configuration, efficiency, protection features, monitoring, warranty and local service support.
Does SUNSATHI offer hybrid inverters with battery backup?
Yes. SUNSATHI’s published hybrid range includes single-phase models and features such as battery support, less than 10 ms transfer time, diesel-generator support and smart-load integration.
How do I choose the right solar inverter capacity for my home?
Start with expected solar-panel capacity and electricity usage, then con
Does an on-grid solar inverter work during a power cut?
No. A standard on-grid inverter shuts down when the grid fails for safety. Backup requires a system specifically designed for outage operation.
Does an on-grid solar inverter need a battery?
No. A standard on-grid system operates without batteries, using solar electricity to supply daytime loads while connected to the grid.