Building Solar India
1988 – Present
Every verified milestone in Kunwer Sachdev's journey — from the 1988 cable-TV origin and the 1998 inverter pivot, through the Solar Man of India era, to his continuing work in lithium energy storage at Su-Vastika.
Before the Inverters — The Cable TV Origin
Su-Kam began in 1988 — not with inverters, but with cable television. Kunwer Sachdev manufactured CATV amplifiers, installed dish antennas for Doordarshan and the Indian Air Force, and distributed Echostar satellite receivers, building a profitable cable-TV communications business in Delhi. This was the engineering and entrepreneurial foundation on which Su-Kam Power Systems was later built.
Su-Kam Power Systems — The Inverter Pivot
Recognising India's chronic power-cut problem, Kunwer Sachdev shifted from cable TV to power backup — founding Su-Kam Power Systems with ₹10,000 in seed capital. From a single MOSFET inverter, he built Su-Kam into India's largest power-backup brand before pioneering the country's solar revolution.
Solar R&D Division Launched
Su-Kam establishes India's first dedicated in-house solar R&D division for inverter-level solar integration — creating the technical foundation for all future grid-tied and off-grid solar projects.
First Solar Inverter Patents Filed
Su-Kam files patents for solar charge controllers and hybrid solar inverter designs — among the earliest solar IP registrations by an Indian power electronics company.
SECI 3 MW — India's First Megawatt Solar Bid
India's first SECI solar tender was for 5 MW. Most companies hesitated. Su-Kam bid 3 MW and won — the lone serious bidder at scale. This single decision seeded the institutional solar market in India and proved that megawatt solar was commercially viable.
200+ Solar Products Commercialised
Su-Kam's catalogue reaches 200+ solar and power products — from 100W rooftop kits to MW-scale grid-tied inverters. No other Indian company had this breadth at the time, enabling Su-Kam to serve every market segment simultaneously.
PEC Chandigarh — India's First SECI Rooftop Solar
India's first SECI-funded grid-tied institutional rooftop solar project. The 1.3 MW system supplies ~50% of Punjab Engineering College's campus load, saving ₹1 crore annually. Commissioned October 2015. Featured on Discovery Channel's Sun Fuel documentary.
Agartala Solar City — First Solar City in North-East
45 kWp off-grid anchor project of India's first solar city in the North-East. Battery-backed architecture designed for Tripura's unreliable grid. Su-Kam's first project in the region — 90+ hospitals and institutions followed across Tripura.
Kannauj Mini-Grid — Dr. Kalam's Last Inauguration
250 kW mini-grid electrifying 450 households across Fakirpura and Chanduahaar villages, Kannauj. Inaugurated by Dr. APJ Abdul Kalam on July 7, 2015 — just 20 days before his passing on July 27. Project value ₹6.15 crore, funded by UPNEDA.
Chennai Metro Rail — 1 MW Grid-Tied Solar
First solar installation for Chennai Metro Rail at Koyambedu depot. 3,200 panels generating ~5,000 units daily. Annual savings ₹1.12 crore. Su-Kam trained a 10-person crew from scratch in Tamil Nadu — seeding what became 4.5 MW of CMRL solar capacity.
India Today — The Solar Man of India
India Today's December 18, 2017 cover story crowned Kunwer Sachdev 'The Solar Man of India' — recognising Su-Kam's largest market share in solar residential and a decade of pioneering solar innovation that fundamentally changed how India powers its homes and institutions.
A New Chapter — Su-Vastika
After building Su-Kam into India's largest power-backup and solar brand through 2019, Kunwer Sachdev turned to the next frontier: intelligent lithium energy storage. Su-Vastika was founded in 2019 in Gurugram by Khushboo Sachdev, with Kunwer Sachdev as mentor and product-strategy driver — building lithium Battery Energy Storage Systems (BESS), solar hybrid inverters and UPS to replace diesel generators and ageing lead-acid batteries.
25+ Patents, Global Exports & Rotomag Backing
Su-Vastika scales fast: 25+ patents filed — including a Government of India patent for its IoT-based energy-management system — six product lines, exports to 30+ countries, and a 2025 strategic investment from Rotomag to accelerate lithium and solar energy-storage manufacturing.
Still Inventing
Kunwer Sachdev continues to invent and develop new solar and energy-storage products, driving product strategy at Su-Vastika. From the first plastic-body inverter to lithium BESS, the through-line is unchanged: build it, patent it, ship it — and bring reliable, affordable power to every Indian home.