Chapter 3 · 2002–2008

The Inventions — the products that changed the market

A shock on a rainy day, the CHIC, the Fairy Queen, the Home UPS, the world’s first touch-screen inverter — the firsts a whole industry copied.

Innovation at Su-Kam was never a department — it was the whole company, and it almost always began with a real human moment. A customer told me his young daughter had been shocked wiping the metal body of an inverter on a rainy day. I couldn’t rewire every Indian home, so I decided to rewire the product: I would build it in plastic. My own R&D fought me — plastic can’t take the heat, they said — so we engineered a temperature sensor and a dozen safeguards, and with GE Plastics we made the CHIC in 2003: India’s first plastic-body inverter, in a PC-ABS that shrugged off 120°C. India Today called it the “Innovation of the Decade.” Some families used theirs for more than twenty years. I named it “Chic” because I wanted an inverter people were proud to display, not hide in a corner.

Not everything I loved survived. The Fairy Queen — a plastic inverter shaped like a heritage locomotive, made to sit proudly in a bedroom — was one of the most beautiful things we ever built, and it died on its very first shipment: the packaging failed and units reached dealers in pieces. A small, careless detail shattered a dream we never managed to revive. The lesson never left me — trust your team, but never take your eyes off the details that matter.

But the firsts kept coming, each one solving a real Indian problem. India’s first DSP sine-wave inverter in 2002. The Trendy — the first Indian inverter with a digital display. India’s first 5 KVA and 10 KVA home inverters, built to take on the diesel generator. The first Solar Online UPS and the first grid-feed hybrid inverter. The world’s first touch-screen, Bluetooth-enabled inverter you could watch from your phone. And the range scaled all the way up — to the 100 KVA Colossal, an inverter we turned into a full-blown solar power plant for factories and large institutions. We pioneered LED status indications, SMD-based boards, our own in-house battery testers, and even an aluminium-transformer design to cut cost without cutting quality. And we created an entire category: in 2005 we coined the “Home UPS” — within a year the whole industry was using our word.

“I didn’t want to build an appliance people merely tolerated. I wanted to build one a family would be proud to keep in their home.”

The CHIC — India’s first plastic-body inverter, India Today’s “Innovation of the Decade.”
The CHIC — India’s first plastic-body inverter, India Today’s “Innovation of the Decade.”
The Fairy Queen — beautiful, beloved, and undone by its packaging.
The Fairy Queen — beautiful, beloved, and undone by its packaging.
Trendy — the first Indian inverter with a digital display.
Trendy — the first Indian inverter with a digital display.
Engineering you could see through.
Engineering you could see through.
Falcon — high-frequency inverter, patented plastic body.
Falcon — high-frequency inverter, patented plastic body.
Brainy Eco — the intelligent solar home inverter.
Brainy Eco — the intelligent solar home inverter.
Intelli S — India’s first Solar Online UPS.
Intelli S — India’s first Solar Online UPS.
The 100 KVA Colossal — an inverter turned into a full solar power plant.
The 100 KVA Colossal — an inverter turned into a full solar power plant.
Brainy Hybrid-GTI — grid-tie, using 100% of your solar.
Brainy Hybrid-GTI — grid-tie, using 100% of your solar.
India’s first DSP-based high-voltage MPPT solar charge controller.
India’s first DSP-based high-voltage MPPT solar charge controller.
48V Battery Equalizer — longer life for battery banks.
48V Battery Equalizer — longer life for battery banks.
Sun Way — solar street light with GSM remote control.
Sun Way — solar street light with GSM remote control.

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Important Legal Disclaimer

Kunwer Sachdev has no association, affiliation, or relationship with Su-Kam Power Systems Ltd. in its current form. He ceased to be the Managing Director and Promoter of Su-Kam following insolvency proceedings under the Insolvency and Bankruptcy Code (IBC), 2016. The company was acquired by new owners through the NCLT resolution process (2019–2022). Kunwer Sachdev shall not be held responsible, liable, or accountable for any products sold, services rendered, warranties offered, or obligations undertaken by Su-Kam Power Systems Ltd. — past, present, or future. This website is a personal digital archive documenting Kunwer Sachdev's historical contributions to India's solar industry during his tenure as Founder & MD (1988–2019). It is not affiliated with, endorsed by, or connected to Su-Kam Power Systems Ltd. or any of its current directors, shareholders, or management.