Best Rooftop Solar Panel Manufacturers in India | Hartek Group

About Hartek Solar

Hartek Solar is one of India's leading rooftop solar companies. We specialize in the design, engineering, and installation of Industrial, residential, commercial and floating solar rooftop systems. With over 100 MWp of rooftop solar installed across the country, Hartek Solar is one of India's top rooftop solar installers. This distinction has been recognized by industry experts such as Mercom Capital and Bridge to India, who have named us among India's top rooftop solar installers. We are also proud to be one of India's Top 3 Rooftop Solar Installers.

We provide complete turnkey solutions from optimum site assessment, best design, and engineering practice, complete procurement, and on-time project installation and commissioning. We also offer comprehensive Operational and maintenance services for solar projects. Our highly experienced team and significant technological collaborations across the globe have made Hartek Solar the most preferred EPC partner in the country. Our portable solar power systems are also perfect for remote locations or areas without access to traditional electricity.

Our team of experienced engineers and technicians are dedicated to providing our customers with the highest quality solar installation services. We take pride in our ability to deliver projects on time and within budget, and our customer-centric approach ensures that our clients are completely satisfied with the final outcome.

At Hartek Solar, we are committed to promoting sustainable energy solutions and reducing carbon emissions. The company has been involved in the execution of around 5000 MW of solar grid connectivity for the majority solar developers since 2009 which has resulted in omitting Carbon emission of 150 Million tonnes so far.

Hartek Solar - Your Partner in Achieving Sustainable ESG Goals

Hartek Solar is committed to reducing carbon emissions and promoting sustainability. As a leading renewable energy company, it is proud to be a part of the growing global coalition for net-zero emissions. Hartek partners with organizations looking to meet their ESG goals and contribute to the transition to a 100% renewable energy future. The company's commitment to sustainability is evident in its custom green solutions, designed to help businesses switch to hassle-free renewable energy. The company’s expertise in the industry and commitment to meeting ESG goals has made it a trusted partner for organizations looking to transition to more sustainable energy sources. By providing eco-friendly energy solutions, Hartek Solar is helping to create a more sustainable future for generations to come.

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Floating Solar

Why choose Hartek Solar?

Make in India Solar Company

Named as Solar EPC Company of the Year –
Rooftop by SolarQuarter

Make in India Solar Company

Ranked as one of India's Top 3 Rooftop Solar Installers

Make in India Solar Company

Over 30 years of Hartek Group’s expertise, quality and engineering.

Make in India Solar Company

Lifetime service and post – sales support

Make in India Solar Company

Zero compromise policy to safety

Make in India Solar Company

One stop solution provider


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PV, short for Photovoltaic, derives its name from the process of converting light ('photo') directly into electricity ('voltaic'). Simply put, a Solar PV system is a power station that generates electricity from sunlight.

A PV system consists of different components, including:

  • Solar Modules (group of solar cells)
  • Charge Controllers (to control the amount of charge going into the inverter)
  • Inverters (to convert the direct current (DC) of a PV system into alternating current (AC) for use in electrical appliances)
  • Batteries (to store any excess energy and use it when the PV system is not generating power) (for off-grid and hybrid systems only)
  • Racking (mounting hardware for the modules) etc.

Such rooftop systems can be installed at the roofs of residential and commercial complex, housing societies, community centers, government organizations, private institutions etc.

Solar PV is a highly proven and reliable technology and have been in use since 1950s. A PV system that is designed, installed, and maintained well will operate for 25 years or even more than 25 years. The Inverters, which are an integral part of a Solar PV system, may need a replacement once in the 25 years lifetime of the system. Moreover, since there are no moving parts (unless you are using tracking devices to move modules tilt with the movement of the Sun), there is practically negligible wear and tear.

Going solar will help you in the following ways:

  • Save Money: Solar power is often cheaper than your grid electricity. There is also no peak time "demand" charge associated with solar electricity. If you own the rooftop system, you will have access to free electricity after a certain time period – i.e. once the initial cost of the system is amortised. [refer (c)].
  • Lock In Your Energy Costs: As fossil fuel stocks deplete, the costs of grid based electricity (generated using fossil fuels) will continue to rise. Going solar allows you to locked-in your energy costs for the lifetime of the system, typically a period of 25 years or more.
  • It Makes Perfect Business Sense: Depending on your electricity consumption and the incentives and/or rebates available in your area, your rooftop solar system could pay back for itself in as little as 4-5 years. Since the systems last for as long as 25-40 years, you will have access to free electricity for many years.
  • Improves Your Business' Public Perception: Solar systems are an emissions free source of electricity generation. Therefore going solar also has huge environmental benefits. This will improve the perception of your business in the eyes of your customers, your employees, the community and even the government. It's great CSR.

Absolutely! Solar is for everyone. Whether you are a residential solar, commercial or industrial consumer, a smart city developer or a public utility service provider, you can use solar in a variety of ways and save big on your electricity bills year after year, for a lifetime.

By using Solar PV power, you also stabilize your existing electricity supply as well as reduce your dependence on more expensive sources of power like Diesel Generators and Inverters. You can save up to 50% on your electricity bill. It reduces carbon footprint, thus is extremely environment friendly.

Under net metering, electricity generated by the Solar rooftop system is first utilized by the consumer to meet their internal/captive requirements. Excess electricity, if any, is exported to the grid. Subsequently, when the consumer imports power from the grid, the exports are adjusted against the imports, lowering the electricity bill.

A net meter (bi-directional meter) records the energy imported from the grid to meet the load and surplus energy exported to the grid after consumption. Both energy import and export are recorded in the net meter. The difference between export and import readings is the actual energy consumed/delivered.

Subsidies are available from multiple channels for setting up Rooftop PV projects.

Subsidy/Support from Central Government through MNRE:
Capital Subsidy at the rate upto 30% of the benchmark cost for general category states (upto 70% of the benchmark cost for special category states i.e., North MNRE PV Rooftop Cell,, Supported by EU, DCI/ASIE/2014/343-602 LOT 1 3/4 Eastern States including Sikkim, Uttarakhand, Himachal Pradesh, Jammu & Kashmir and Lakshadweep, Andaman & Nicobar Islands) is being given in residential, institutional (hospitals, educational institutes, etc.), social sector etc.

Commercial and Industrial sectors will not be eligible for the above mentioned subsidies.

Government Institutions including Public Sector Undertaking (PSU) shall not be eligible for subsidy; instead they will be given achievement-linked incentives/awards.

Subsidy/Support from State Government through State Nodal Agencies (SNAs):
Subsidy support is also available in various states. The percentage of subsidy varies according to the state policies.

Estimating the approximate capacity of the solar PV system you require and can install for your facility should be undertaken keeping in mind your requirements, your constraints, and the amount of sunlight available.

This would depend on various factors such as the shadow-free area available, the orientation of the roof etc.

Simply put, for 1 kw of solar power, you require 100 sq feet area.

For example if your total requirement is of 5 kw power, your total area requirement will be 500 sq feet.

1 kw of solar system produces roughly 5 units of energy with the sun shining for a good 8 hours a day.

Therefore, in case you have a 10kw system, you will generate about 50 units of electricity with which you can power all your electrical needs including refrigerator, ACs, TV and more.

The annual maintenance and recurring costs are almost negligible, since there are no moving parts and the input fuel (sunlight) is free. For optimum performance, the system only requires cleaning of modules and basic preventive and corrective maintenance