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Best Solar EPC Company in Delhi
For Sustainable Future
& Brighter Tomorrow
"Shine Brighter, Go Solar: Powering Progress, Lighting the Future!"
CPWD
CPWD integrates solar energy in government infrastructure projects for sustainability.
SECI
SECI advances solar energy deployment in India with innovative initiatives.
MSME & MES
MSME supports small businesses, MES provides engineering solutions in solar.
Thermosun Best Solar EPC Services in Delhi
Choosing the right solar EPC company in Delhi is one of the most important verdicts when planning to install a solar power system. A professional EPC mate ensures that your entire solar trip is smooth, effective, and hassle-free.
EPC stands for Engineering, Procurement, and Construction. In solar industry, an EPC company is responsible for handling everything — from system design and opting high- quality solar components to installation, testing, and final commissioning. This means you don’t have to deal with multiple vendors, as everything is managed under one roof.
Thermosun is honored as a trusted and experienced solar EPC contractor in Delhi, offering complete end- to- end solar solutions for residential, commercial, and industrial projects. Our process begins with a detailed site inspection, followed by customized system design, procurement of MNRE- approved factors, professional installation, and support for net metering and subsidy approvals.
As a leading solar EPC company in Delhi, Thermosun focuses on delivering high- performance rooftop solar systems that maximize energy generation and significantly reduce electricity bills. We use advanced solar technology, high- effectiveness panels, and durable structures to ensure long- term performance.
Whether you’re a homeowner or a business proprietor, choosing the best solar EPC service provider in Delhi ensures better system effectiveness, briskly installation, and advanced return on investment. With Thermosun, you get a reliable solar partner committed to quality, transparency, and customer satisfaction.
Empanelled by DISCOM under PM Surya Ghar: Muft Bijli Yojana
Positioning Thermosun as a reliable provider of solar energy solutions. This empanelment enables us to provide government-supported subsidies and assistance to homeowners planning to install rooftop solar panels, making renewable energy more available and cost-effective.
Best Solar Company In Delhi
Thermosun is known as one of the best solar company in Delhi, providing reliable solar solutions for both residential and commercial properties. As a growing solar energy company in Delhi, we focus on offering practical and customized systems based on what the customer actually needs, not just standard packages.
We don’t just install panels — our team works closely from the initial consultation to final execution, making sure every project is done properly. With experience in handling multiple rooftop solar installations in Delhi, we understand different rooftop structures, energy usage patterns, and local requirements, which helps us design better systems.
Apart from installation, we also provide guidance and consultation for people who are planning to switch to solar but are not sure where to start. Our team regularly conducts solar awareness campaigns in different parts of Delhi (not very big events, but helpful enough) to spread knowledge about renewable energy and its long-term benefits.
If you are looking for a dependable solar energy company in Delhi, Thermosun works across different sectors including homes, commercial buildings, small industries, schools, hospitals, and even some government-related projects. We try to keep things simple and transparent so that customers feel confident before making the decision.
At the end of the day, our goal is to deliver solar solutions that actually work in real conditions, not just on paper — while also contributing in a small way towards a cleaner and more sustainable environment.
About Thermosun
At Thermosun, we are MNRE approved leading solar energy EPC company in Delhi dedicated to making the vision of energy a reality. As a best solar panel EPC company, we specialize in end-to-end solutions, from design and engineering to procurement and construction (EPC). With a commitment to excellence, we offer customized solar equipment that primes sustainability.
We have 5+ years of experience in Solar Industry and have 1000+ happy customers. Our experienced team combines expertise with innovation to ensure that each installation exceeds expectations. Be it for residential, commercial, or industrial needs, Thermosun is your trusted partner in creating a brighter and greener future by harnessing the power of the sun.
Our mission is to revolutionize the way we generate and consume energy by harnessing the power of solar technology. As a result, our goal is to make solar energy accessible, reliable and affordable for everyone, paving the way towards a cleaner, greener planet for future generations.
Cost of Solar Panel Installation in Delhi
The cost of solar panel installation in Delhi depends on several factors such as system size, type of solar panels, inverter quality, mounting structure, and government subsidy.
On average, the price of a rooftop solar system in Delhi ranges between ₹50,000 to ₹60,000 per kW, depending on the components used and installation requirements.
Estimated Solar System Price in Delhi (Before Subsidy)
| Solar System Size | Approx Price (Before Subsidy) | Suitable For |
|---|---|---|
| 1 kW solar system price in Delhi | ₹75,000 – ₹85,000 | Small homes |
| 3 kW solar system price in Delhi | ₹1,89,000 – ₹2,15,000 | 2–3 BHK homes |
| 5 kW solar system price in Delhi | ₹3,15,000 – ₹3,57,000 | Large homes / villas |
| 10 kW solar system price in Delhi | ₹5,31,000 – ₹6,07,000 | Commercial buildings / large houses |
Prices are approximate and may vary depending on solar panel brand, inverter type, installation structure, and roof conditions.
Solar Panel Installation Cost After Subsidy in Delhi
People can reduce the cost of installing solar panels through the the goverment schemes like PM Surya Ghar Muft Bijli Yojana and the Delhi Solar Policy 2023. These government initiatives encourage residential consumers to adopt solar energy by providing financial assistance.
Under the central subsidy scheme, homeowners can receive up to ₹78,000 for up to 3 kW for rooftop solar subsidy in Delhi,
Estimated Solar Price After Subsidy in Delhi
|
Solar System Size |
Price Before Subsidy |
Total Subsidy (Delhi + Central) |
Approx Price After Subsidy |
|
1 kW solar system cost in Delhi |
₹75,000 – ₹85,000 |
Up to ₹40,000 |
₹35,000 – ₹45,000 |
|
3 kW solar system cost in Delhi |
₹1,89,000 – ₹2,15,000 |
Up to ₹1,08,000 |
₹81,000 – ₹1,07,000 |
|
5 kW solar system cost in Delhi |
₹3,15,000 – ₹3,57,000 |
Up to ₹1,08,000 |
₹2,07,000 – ₹2,49,000 |
|
10 kW solar system cost in Delhi |
₹5,31,000 – ₹6,07,000 |
Up to ₹1,08,000 |
₹4,23,000 – ₹4,99,000 |
Prices are approximate and may vary depending on solar panel brand, inverter type, installation structure, and roof conditions.
Trusted Solar Vendor In Delhi
Thermosun is steadily growing as one of the Best Solar Panel Vendor in Delhi, focusing on providing reliable and cost-effective solar solutions for both on-grid and off-grid systems. We try to keep things simple for customers — understand their requirement first and then suggest what actually fits, instead of pushing unnecessary setups.
Our goal is to deliver solar systems that are practical, long-lasting, and actually perform well in real conditions. Whether it’s a home or a business, we work on creating solutions that match daily energy usage and rooftop conditions.
As one of the Top Solar Companies in Delhi, we are also focused on promoting clean and sustainable energy, but in a way that is affordable for people. Solar should not feel complicated or expensive, and that’s something we always try to improve in our approach.
Over time, this consistency in work and service has helped Thermosun build trust and be recognized as the best solar panel company in Delhi for rooftop solar installation. We still believe there’s a lot to improve, but we make sure every project we handle is done properly and with attention to detail.
Our Services
0ff Grid Panel On Grid Panel Hybrid Panel AMC Cleaning Free Consultancy Free Site Visit Licensing& Commissioning Installation |

Off Grid Plant
It generates electricity independently of the main power grid, providing self-sustaining energy for remote or isolated locations.

On Grid Plant
An on-grid panel connects solar energy systems to the main power grid, allowing for efficient energy distribution and consumption.

Hybrid Plant
It combines on-grid and off-grid systems, utilizing both grid-connected electricity& self-sustained energy production.

Free Consultancy
We provide free expert advice on solar energy use, ensuring informed decisions tailored to your energy needs.

Free Site Visit
A free site visit involves professionals or experts assessing a location in person without charging any fees for their service.

Licensing & Commissioning
Licensing involves legal permission, while commissioning refers to the process of setting up operation of equipment.

Installation
Installation involves setting up equipment or systems according to specifications, ensuring proper functioning and performance.

Annual Maintenance Contract
An Annual Maintenance Contract is a service agreement for regular upkeep and repair of equipment or systems .

Cleaning
Cleaning involves removing dirt, dust, and stains, ensuring hygiene, appearance, and maintenance of a clean environment.
Why Choose Us as Solar EPC Company in Delhi
Thermosun is committed to providing reliable and high-quality solar panel solutions provider for homes and businesses. With 5+ years of experience in the solar industry, we focus on safe installation, durable components, and long-term customer support to ensure maximum solar energy generation and savings on electricity bills.
1000+ Happy Customers
We have successfully installed rooftop solar systems for more than 1000 satisfied customers, helping them reduce electricity bills and switch to clean energy.
5+ Years Solar Industry Experience
With over 5 years of experience in solar installation, our expert team ensures proper system design, safe installation, and efficient solar power generation.
Safe Rooftop Solar
Our solar mounting structures are designed to withstand strong weather conditions and winds up to 180 km/h, ensuring safety and durability of your rooftop solar plant.
5-Years Annual Maintenance Contract
Includes system checkups, cleaning, and performance monitoring.
Free Solar Panels Cleaning
Regular cleaning ensures maximum solar power generation and system efficiency.
PERFORMACE WARRANTY SOLAR PANELS
High-quality solar panels with long-term power generation guarantee.
Government Solar Subsidy Assistance
We help customers apply for rooftop solar subsidy under PM Surya Ghar Yojana.
MNRE Approved Components
We use MNRE approved solar components that meet government standards for quality, safety, and eligibility for solar subsidy schemes.
How Much Kw Solar Plant You Have to Install
If you have a roof of area 150 Sq.ft
Thermosun Engineering and Power
Solution A
If you have a roof of area 250 Sq.ft
Thermosun Engineering and Power
Solution B
If you have a roof of area 350 Sq.ft
Thermosun Engineering and Power
Solution C
(3 Phase)
If you have a roof of area 500 Sq.ft
Thermosun Engineering and Power
Solution D
(3 Phase)
What People Think About Us
“To our loyal clients: Your ongoing support means the world to us, and we’re deeply grateful for your continued trust and partnership.”
Posted on RadheshyamTrustindex verifies that the original source of the review is Google. I recently had my solar system installed by Thermosun Engineering and Power India Pvt. Ltd., and the experience was great. Their team was professional, explained everything clearly, and completed the installation on time. The system is working smoothly so far. Definitely one of the best solar EPC company in Malviya Nagar, Delhi. Highly recommended for anyone considering solar energy.Posted on Sunny RaiTrustindex verifies that the original source of the review is Google. Thermosun Engineering & Power India Pvt. Ltd. Solar power, wind power, the way forward is to collaborate with nature…Posted on Sunaina KumariTrustindex verifies that the original source of the review is Google. We have Installed 5 kw solar system plant from Thermosun. We got 78,000 subsidy first and now they have Applied for our Delhi subsidy + monthly GBI. Process was smooth. We are Happy and satisfied with great work , support given by the team. We highly recommend Thermosun best solar company in delhi to others.Posted on Anki KumariTrustindex verifies that the original source of the review is Google. Thermosun is the best solar company in Delhi malviya nagar, the installation is smooth and my electricity bill reduce a lot.highly recommended for solar plant installation in delhiPosted on Kashish RawatTrustindex verifies that the original source of the review is Google. Thermosun provided excellent solar service in malvaya nagar, Delhi the installation was fast and team are very goodPosted on Neeraj MandalTrustindex verifies that the original source of the review is Google. Excellent solar company in Malviya Nagar, delhi. Thermosun ki team bohot supportive and helpful hai.Posted on Shahid MalikTrustindex verifies that the original source of the review is Google. Very happy with solar panel installation in Greater Kailash Delhi. Great experience and good saving.Posted on Aditya SinghTrustindex verifies that the original source of the review is Google. Thermosun is the best solar company in Malviya Nagar, Delhi. We have installed 5kw solar plant on my roof. Highly recommended for fast service.Posted on Tanya SunariyaTrustindex verifies that the original source of the review is Google. Thermosun solar installation ke liye best company hai malviya nagar mein. Highly recommendededPosted on Alka SinghTrustindex verifies that the original source of the review is Google. Highly recommend thermosun for solar installation in Malviya Nagar, the team is very good and supportiveVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
FAQs for Solar Company in Delhi
Which Solar Company is the best?
Choosing the best solar company depends on quality, experience, and service. Thermosun is one of the best solar companies in Delhi, with 5+ years of experience and 1000+ satisfied customers. Known as a top-notch solar service provider, Thermosun offers reliable installation, quality products, and complete support including subsidy assistance.
Which is better, Topcon or Bifacial?
TOPCon and bifacial panels are different technologies. TOPCon offers higher efficiency and better long-term performance, making it ideal for rooftop installations. Bifacial panels generate power from both sides, giving higher output in open spaces. Many modern solar panels combine both, giving you the best of both technologies.
Which company solar inverter is best for home?
The best solar inverter for home depends on reliability, efficiency, and after-sales support. In India, popular options include Luminous, Microtek, V-Guard, Delta, and Tata Power Solar. For most households, a hybrid inverter is recommended because it works with solar panels and batteries, providing backup during power cuts and better energy management.
How do I choose a good solar company?
To choose a good solar company, check these key factors:
Experience of 5+ years
1000+ successful installations or satisfied customers
Use of high-quality solar panels and inverters
Proper support for subsidy and net metering
Strong after-sales service
Thermosun provide one of the best solar panel installation in Delhi, known for reliable installation, expert guidance, and complete solar solutions for homes and businesses.
Areas We Serve in Delhi & Delhi NCR
Our Featured Projects
Get Free Consultation with Best Solar EPC Company in Delhi
✔ 1000+ Happy Solar Customers
✔ 5+ Years Solar Industry Experience
✔ 25 Years Solar Panel Performance Warranty
✔ MNRE Approved Solar Components
✔ Government Solar Subsidy Assistance







