🔥 “One Litre Water, Six Hours Light” – Emeka Nelson’s DIY Power Revolution
Key Takeaways:
Innovator: Emeka Nelson, 26‑year‑old from Anambra, built a 1,000‑watt water‑powered generator.
Efficiency: Runs for six hours on just one litre of clean water.
Education: Self‑taught technologist, no formal engineering training.
Impact: Eco‑friendly and cost‑saving alternative to petrol generators.
Recognition: Gaining traction on X, Facebook, Instagram, and Nigerian news feeds.

Awka, Nigeria — According to African Hub, 26‑year‑old innovator Emeka Nelson, despite having no formal engineering education, has built a water‑powered generator that delivers 1,000 watts and runs for six hours on just one litre of clean water, revolutionising today news in Nigeria’s energy conversation.
In Nigeria, 26-year-old innovator Emeka Nelson despite having no formal engineering education has built a water-powered generator with a 1,000-watt capacity that can run for six hours on just one liter of clean water. pic.twitter.com/kLGR092fFG
— African Hub (@AfricanHub_) July 12, 2025
Speaking at a recent demo, Nelson said,
“As long as the water is there, the generator keeps running… Its sound is very minimal.”
Social Media Comments:
Following the video filmed by African Hub, social media users are in awe:
@technaijalive commented (X): “This guy dey give hope!”
@GreenSolutions commented (Facebook): “No fuel, no fumes. Nigeria needs more Emeka’s!”
@MamaEbele commented (Instagram): “Dem too silent. This one na life‑changer o!”
@CityCrunch commented (X): “Simple, affordable, eco‑friendly – wetin we need!”
@EngineerAmaka commented (X): “I go like see community version.”
@ChineduStories commented (Facebook): “My generator na constant headache; I fit switch now.”
@NaijaYouth commented (Instagram): “Inspired. I wan try build too.”
According to him, the invention emerged from personal tragedy—in his youth, a friend died from petrol generator fumes, prompting him to find a safer solution
And speaking further, Nelson began experimenting with books and roadside technicians, salvaging parts from scrap yards. Eventually, he designed a prototype capable of powering his two‑bedroom flat and minimal devices.
Following the report on BusinessDay, the device outputs between 220–240 V and runs quietly without exhaust, making it safe for indoor use .
Nigeria’s power crisis forces many households to rely on petrol generators. Emeka’s prototype offers no‑fume, low‑cost lighting with clean water as the only input, pointing to a future of accessible, sustainable energy.
I recall my neighbour’s generator smoking all day—then I saw Emeka’s clip on X. “No fuel, no wahala,” he said—and I believed him. One litre, six hours—imagine the savings for everyday families. This kind of home‑grown brilliance resonates deeply in our streets, where every naira counts and every blackout is an opportunity.
As at the time of filing this report, Emeka is seeking support to scale the prototype beyond his workshop. In a statement released by him, he expressed hope for community‑wide models next. The journey ahead is long, but his invention already shines bright with promise.
Following this breakthrough, we’ll be watching how support from government, investors, and tech hubs can help Emeka take his invention from prototype to market-ready.