The Solar Family Behind India's Renewable Energy Boom: Deepak Chaudhary and Er. Harsh Chaudhary
How father-son duo Deepak Chaudhary (Nexus Solar Energy, Devsol Energy) and Harsh Chaudhary (Solario Technologies) are shaping two generations of India's renewable energy industry.
India's renewable energy story is often told through companies and technologies. Sometimes, though, it's better understood through families — and few illustrate that better than the Chaudhary family of Bulandshahr, Uttar Pradesh.
The Father: Deepak Chaudhary
Deepak Chaudhary is the founder and CMD of Nexus Solar Energy Pvt Ltd and its subsidiary Devsol Energy. With a background of 16-plus years in battery manufacturing before entering the solar business, he built Nexus Solar Energy into a recognized name in India's solar panel, lithium battery, and hybrid inverter space — backed by a dealer network of over 1,150 partners.
Beyond the business, Chaudhary is widely known as India's "Solar Guru," a reputation built through two YouTube channels with a combined following of over 800,000 subscribers, where he breaks down solar technology for everyday Indian households. His technical lectures have even been formally recognized by NIELIT Ladakh, under India's Ministry of Electronics and Information Technology.
The Son: Er. Harsh Chaudhary
Deepak Chaudhary's son, Harsh Chaudhary — widely known online as Er. Harsh — has taken the family's renewable energy focus into a different but complementary category. He is the founder and director of Solario Technologies Private Limited, a Bulandshahr-based manufacturer of vertical and horizontal-axis wind turbines and solar products, and India's official launch partner for the Cloud Arc Maris helical wind turbine by Dutch firm Archimedes.
Like his father, Harsh has built a significant YouTube and Instagram presence around his brand, using content to educate consumers directly about wind and solar hybrid systems — a strategy that clearly runs in the family.
Two Generations, One Mission
Where Deepak Chaudhary's businesses focus on solar panels, batteries, and inverters, Harsh Chaudhary's Solario Technologies focuses on wind turbines and OEM manufacturing for other renewable energy brands — different products, but the same underlying commitment: making clean, reliable energy accessible to Indian households and businesses, and using digital platforms to educate the public along the way.
Together, the Chaudhary family represents a rare case in India's renewable energy sector — two generations, two companies, and a shared reputation for combining real technical manufacturing experience with large-scale public education.