From Kibera Workshop to Nairobi's Rooftops: How One Carpenter Built a Solar Installation Empire

In a modest workshop tucked behind the bustling storefronts of Ngong Road in Nairobi's industrial zone, Samuel Ochieng is quietly reshaping how the city's middle-income households access clean energy. What began seven years ago as a carpentry operation has evolved into KiliWatt Solutions, a solar installation business now servicing over 2,400 residential and commercial clients across Greater Nairobi.

"I started with three chisels and a dream," Ochieng recalls of his early days in Kibera, where he learned woodworking from his uncle. The transition came in 2019 when rising electricity costs—compounded by Kenya Power's tariff increases that year—pushed him to explore alternative income streams. He invested his savings into solar training certification through the Kenya Renewable Energy Association, completing a six-month course while maintaining his carpentry clients.

The timing proved prescient. As Kenya's energy costs climbed and government incentives for renewable adoption expanded, demand for affordable installation services surged. Today, KiliWatt operates from a 1,200-square-metre facility on Industrial Area Road, employing 14 full-time technicians and coordinating work across Westlands, Karen, Langata, and Runda—neighbourhoods where rooftop solar has become increasingly common.

"The market has matured significantly," Ochieng explains. A standard 3-kilowatt residential system, which cost around 450,000 shillings in 2020, now runs 280,000 to 320,000 shillings, reflecting both manufacturing efficiency and competition. KiliWatt's clients include tech startups in the Nairobi Business Park seeking backup power, boutique hotels in Westlands reducing operational costs, and homeowners across the sprawling suburbs.

What sets Ochieng apart is his focus on customer retention through maintenance packages and transparent pricing—a rarity in Kenya's solar sector, often plagued by quality concerns. His company offers five-year performance guarantees and has maintained a 94 per cent customer satisfaction rating, according to independent reviews on local business platforms.

The entrepreneur's success mirrors a broader shift in Nairobi's informal sector, where skilled tradespeople are pivoting toward high-demand green technologies. However, Ochieng acknowledges persistent challenges: inconsistent supply chains for quality components, limited access to affordable financing for expansion, and competition from larger, better-capitalised firms entering the market.

Yet his trajectory offers a blueprint for small business success in Kenya's evolving economy. With plans to launch a training academy for young technicians and expand into battery storage solutions, Ochieng embodies the kind of adaptive entrepreneurship that could help Nairobi meet its renewable energy targets while creating sustainable livelihoods.

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