Why 2026 Is the Best Year to Go Solar in India
Why 2026 is the best year to go solar in India — hybrid systems, PM Surya Ghar subsidies and how to pick the right inverter. Expert guide by Kunwer Sachdev.
India Built Its First 3-Phase Solar System in 2006: A Masterclass in Pioneer Engineering
Kunwer Sachdev on India’s first commercial 3-phase solar system in 2006 — the unbroken chain from 2005 Solar PCU to Brainy Eco to Colossal, unmatched product-development energy, and why the industry followed.
IGBT vs MOSFET Inverters: What the Difference Means for You
IGBT vs MOSFET inverters explained — what the technology difference means for efficiency, reliability and lifespan. Plain-English guide for Indian buyers.
The Light that Never Failed: Why Off-Grid Solar Was a Medical Necessity for Tripura
The Light that Never Failed: Why Off-Grid Solar Was a Medical Necessity for Tripura Series · Project 02 · Off-Grid
The Man from IIT Who Came Back — My Story with R. Sivarajan
Kunwer Sachdev’s story of R. Sivarajan — hired from IIT Delhi in 2002, who worked in Su-Kam’s R&D, briefly joined GE Power and Energy, returned, and is now Co-Founder and Director of Technology at Inteli Energi.
The Man Who Built Su-Kam’s Mind — My Story with Sanjeev Saini
Kunwer Sachdev’s tribute to Sanjeev Saini — Su-Kam’s first R&D engineer hired in 2001, who rose to CTO in 18 years, filed 15+ patents, and whose story was affected by the Su-Kam insolvency proceedings.
The Man I Found in Nigeria — My Story with Srinivas Pilla
Kunwer Sachdev shares the story of Srinivas Pilla — headhunted from a white goods company in Nigeria to head Su-Kam’s African subsidiary, and the battery tussle that opened all of Africa and the Middle East to Indian tubular batteries.
The Banker’s Son Who Made It to Cornell — My Story with Ishan Sehgal
Kunwer Sachdev shares a two-generation story — from the SBI bank manager who gave him his first Rs 2 lakh credit limit in 1990, to his son Ishan Sehgal who worked at Su-Kam and is now at Whirlpool Corporation in Chicago.
Three of My People Who Built Their Own Company — Arun Bhardwaj, Rajnish Sharma & Ravi Dutt
Kunwer Sachdev shares the story of three Su-Kam alumni — Arun Bhardwaj, Rajnish Sharma, and Ravi Dutt — who went on to co-found Smarten Power Systems, winners of the National Export Excellence Award 2025.
The Boy Who Became a Leader — My Story with Sunil Badesra
Kunwer Sachdev shares his personal story of Sunil Badesra — a GET trainee from Apeejay College of Engineering who rose through Su-Kam to become Country Head at Sungrow India, leading the company to a 50 GW milestone.