Su-Kam built India’s first solar IoT platform before WiFi was mainstream — remote monitoring of inverters and solar systems across sites using GSM and GPRS. Kunwer Sachdev on the technology, the team, and why the industry ignored it.
Kunwer Sachdev details the invention of automated battery life-cycle testers and cell equalizers for lead-acid and lithium batteries.
Kunwer Sachdev shares his decade-long story with Narender Singh Negi — the quiet R&D engineer who helped build India’s 360V MPPT solar technology and DSP Solar PCU at Su-Kam, and rose to Head of R&D before joining V-Guard Industries as Director.
Kunwer Sachdev shares how he gave Jagdeep Chauhan — a chip salesman from Roorkee — his first chance in the inverter industry. Jagdeep went on to invent India’s DSP Sine Wave Inverter technology at Su-Kam and later founded EAPRO Global, now serving 10 million users across 20+ countries.
How Venkat Rajaraman left Nvidia to join Su-Kam in 2007, led FPGA inverter R&D with Kunwer Sachdev, and founded Cygni Energy — India’s leading battery storage company with a 4.8 GWh assembly plant in Hyderabad.
12 patents granted, 56 pending, 5 provisional — all lost when Su-Kam entered IBC insolvency in 2018. The complete IPO record of India’s biggest patent loss.
Su-Kam filed 77 patents — more than any other company in India’s power backup industry. Kunwer Sachdev tells the story of how a non-engineer became obsessed with protecting innovation, why he started filing patents, and what it cost when all 77 were lost in IBC.
Su-Kam deployed solar and inverter systems for Assam Rifles, replacing diesel generators at remote border posts — a critical infrastructure project that…
Twenty days before Dr APJ Abdul Kalam passed away, he joined Su-Kam to electrify two villages. Kunwer Sachdev shares this unforgettable moment.
Why inverter batteries explode and 7 ways to prevent it at home. Essential safety guide for tubular and lithium battery owners across India.