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Best Solar Inverters to install in 2020

Each inverter manufacturing company is racing to the top in this list by keeping on bringing in innovative and more cost effective solutions for it’s customers to opt for. We have prepared this list according to how the company provides with the products along with the service rating and easiness of use.

Inverters are an important part of any solar pv installation, they are the heart of the solar plant. Although the inverters main job is to convert the DC power produced by the solar panels into usable AC power, it has many auxiliary purposes also. To list a few:

- Inverters enable monitoring so installers and owners can see how a system is performing.

- Getting the maximum power out of the plant by using MPPT technology

- Charge Batteries and maintain their health in case of Hybrid / Off-grid inverters

- Protect the grid with anti-islanding and the panels from high voltage or current surges

When choosing any solar inverter for your solar pv plant, the following important factors must be considered:

  1. Efficiency of the Inverter

  2. Warranty period and serviceability

  3. Online Monitoring feature capability

  4. Pricing

As a general reference, the cost of the inverter can range between Rs6-Rs14 per watt of your solar plant. A golden rule to keep in mind is not to opt for the most expensive but also not the cheapest inverter when trying to install your plant economically. You want the inverter to function properly and also the company to provide with service in case of any warranty claims.

Please note that this list is not in any chronological order according to ratings, we are listing the top solar inverter manufacturers in India. You can find the links to each manufacturer website in case you wish to learn more in the bottom of this page.

Solar Edge

Established in 2006, SolarEdge developed the DC optimized inverter solution that changed the way power is harvested and managed in photovoltaic (PV) systems. The SolarEdge intelligent inverter solution maximises power generation while lowering the cost of energy produced by the PV system, for low return on investment using individual devices connected to each panel. It eliminates the need of using micro inverters on each panels and optimises the output on a per panel level. This is a one of it’s kind revolutionary technology available which has serious benefits to the energy production capacity of your Solar PV Plant.

They also have solutions to charge your Electric Vehicle using solar power in case you plan to buy one. The warranty timeline provided by Solar Edge is one of the highest in the industry.

Nearly all reputed solar inverter manufacturers provide with an energy monitoring service but Solar Edge takes the crown in this !


Fronius International GmbH is an Austrian photovoltaic manufacturer based in Pettenbach, Upper Austria. Fronius is active in the fields of welding technology, photovoltaics and battery charging technology. Fronius inverters are efficient and reliable and form the indispensable heart of every photovoltaic system. Power categories ranging from 1.5 to 27.0 kW guarantee suitability for virtually any system size – from a family home to a large-scale system.

Fronius inverters are concentrated on a comparatively smaller sized plants upto 27kW being the maximum size till date. But they are one of the best manufacturers in this.


SMA Solar Technology AG (meaning System, Mess and Anlagentechnik) is a German solar energy equipment supplier founded in 1981 and headquartered in Niestetal, Northern Hesse, Germany. SMA is a producer and manufacturer of solar inverters for photovoltaics system with grid connection, off-grid power supply and backup (hybrid) operations. SMA sells photovoltaic solar inverters as product families using the Sunny Boy name for home systems, Sunny Tripower and Sunny Highpower for medium-sized plants through the multi-megawatt range and Sunny Central for ground-mounted systems and solar farms, often from 500 kW to the several-megawatt range for self-consumption of solar power and feeding into the utility grid. SMA also produces the Sunny Island for independent, stand-alone systems as well as off-grid and on-grid battery systems, the Sunny Boy Storage and the Sunny Central Storage for grid-tied battery systems of all sizes.


Earlier inverters used to have transformers inside, causing them to be heavy and low in efficiency. Come 1999, KACO new energy revolutionised the market with the first series-ready string inverter without transformer. To this day, their string inverters are manufactured in Germany, but have long since captured worldwide markets. They are equipped for a wide variety of applications in PV plants of all sizes - from single-family homes to decentralised multi-megawatt solar parks.

KACO is a very common and very good brand to opt for if installing a high capacity solar plant on a commercial or industry establishment. It also has a very high over loading capacity.


Since its establishment in 1997, the company has always focused on the field of new energy power generation, adhered to the market demand-oriented and technological innovation as the power source of enterprise development, and cultivated a professional R&D team with rich R&D experience and strong independent innovation ability. It has undertaken more than 20 major national science and technology projects, presided over the drafting of a number of national standards, and is one of the few enterprises in the industry that master a number of independent core technologies.

In 2019 the company opened the Company’s first factory outside China in Bangalore, India.

Delta Electronics

Delta Group in India is operating since 2003 and is part of Delta, founded in 1971 with its Global Headquarters in Taiwan. Delta Electronics India Private Limited is a group entity and a leading Power and Energy management company. Delta Electronics India operates in three business categories: Power Electronics, Automation, and Infrastructure. Their inverters have a very good robust build quality and a long life.

Solax Power

Solax power was founded in 2010 and has grown year on year to become a world recognised international company, with offices internationally in the UK, Netherlands, Germany, Australia and the USA. This growth reflects the increased demand for renewable energy products across the world. SolaX Power strive to continue to be at the forefront of the solar power revolution with a huge commitment to the research and development ensuring it’s products remain the market leading solution.

For a residential solution in India they are one of the go to manufacturers as their service and warranty along with pricing is quite well suited for home owners. You can also install a lithium -ion battery solution with Solax inverter combination which is quite a wonderful product and help you run your home / office on solar power during night too.


Growatt is a energy enterprise dedicated to the Research and Development along with manufacturing of PV inverters including on-grid, off-grid and hybrid inverters. Thye also have user side smart energy management solutions as well to manage and monitor the health of the inverter. The power capacity of Growatt on-grid inverters ranges from 750W to 250 kW, meanwhile its off-grid and storage inverters cover a power range from 1 kW to 630 kW.

Since its foundation in 2010, Growatt has established branch offices one after another in Germany, US, UK, Australia, Brazil, Thailand, India, Netherlands. By 2018 Growatt has become the TOP 3 single-phase inverter brand according to the IHS Markit’s world inverter shipment ranking.

This inverter is also well suited for home owners and smaller sized plants.

Other Brands to consider:

- ABB Inverters

- Solis PV Inverters

- Sofar Solar

At Bigwit Energy we use premium quality inverters and educate you throughly before asking you to make a choice in addition to providing all technical and warranty details of these top selling on grid inverters.

If any buyer has an inquiry about on grid solar inverter from 3KW to 50KW and 50KW to 500KW, you can simply write to us at for any query. If you want to install a new rooftop or ground mounted Solar PV Plant you can fill out our plant on the home page (Click here) and we would reach out to you.




1 Comment

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loom solar
loom solar
Mar 12, 2021

you can become a Solar distributor and be a part of the revolution for saving mother Earth.

A solar system (with a battery system) of up to 10kW in a capacity that is installed at homes qualifies to be a residential solar system. The investment would be somewhere around Rs. 1,00,000 per kW. The electricity bills of a home are generally Rs. 1,000 per month. Installing a solar system in such an establishment could result in savings of Rs.8,400 per annum. The investment is expected to have an RoI (payback period) of ~10-11 years and the return on investments will be around 8%.

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