
The first thing you notice about mbugu is that she doesn't speak like a tech founder. She speaks like someone who has sat inside a smoke-filled kitchen and watched a grandmother cook by kerosene light — someone for whom the energy crisis is not a market opportunity, but a personal wound.
"In the village, if you buy a solar system and it fails in three months, you don't blame your purchase choices," she says, her voice carrying the weight of a problem she has chased across Kenyan counties for nearly a decade. "You blame the solar product. You say, 'solar doesn't work' and you go back to charcoal and kerosene."
That cycle — of failed technology, broken trust, and families returning to toxic fuels — is the quiet crisis inside Kenya's celebrated clean energy story. And it is the crisis that Anne, a Kenyan engineer and researcher at Strathmore University in Nairobi, has spent years trying to end.
Her answer is called Sunsafe.
Kenya is, by almost any measure, an African energy success story. The country now generates roughly 90% of its grid electricity from renewable sources — geothermal, hydro, wind and solar — and has set an ambitious target to reach 100% clean power by 2030. It is a beacon that other African nations study and admire.
But that headline number conceals a stubborn, deadly truth: over 80% of rural Kenyan households still cook on firewood and charcoal. The smoke from those fires kills approximately 23,000 Kenyans every year — more than malaria and HIV combined. In urban areas, families dependent on gas face volatile prices and frequent shortages that push them back to dirty fuels.
Clean power is flowing through the national grid. It is simply not reaching the kitchen.
For Anne, the gap between Kenya's national energy ambitions and the daily reality of rural households is not a policy footnote. It is the central problem of her professional life.
Before Anne could solve the cooking problem, she had to understand a more fundamental failure — why solar technology itself had earned so much distrust in rural communities.
The answer, she found, was not the technology. It was the human layer around it.
Kenya's solar market has exploded in recent years, flooded with panels, batteries, and charge controllers at every price point. But the market has also been flooded with informal, untrained technicians installing systems incorrectly. A farmer might spend their entire harvest proceeds on a solar kit, only to watch it fail within months because of a mismatch between the panel and the battery, or a missing component that nobody told them mattered.
Each failure is not just a financial loss. It is a story that spreads. A community that has watched three solar systems fail will not buy a fourth, no matter how good the technology is.
"The problem isn't the solar product," Anne explains. "The problem is the invisible layer between the product and the household — the installer who doesn't know what they're doing, and no one is training."
This insight sent Anne back to her research. At Strathmore University, she and her colleagues mapped exactly how rural communities use energy — building what she calls rigorous "load profiles," models of when households draw power, how much, and for what purpose. From that data, they built something more practical: a tool that any informal local electrician could use to size and install a solar system correctly.
That tool became Sunsafe — a smartphone application designed not for engineers, but for the "ocha" electrician who learned their trade informally and has been quietly powering Kenya's rural communities for years.
But translating research into a product is where Kenya's clean energy story gets complicated. And it is here that Anne's journey becomes not just inspiring, but instructive about the structural barriers facing African clean-tech founders.
Funding was the first wall.
Early-stage capital for African clean-tech startups remains desperately scarce. International climate funds, development finance institutions, and impact investors have all pledged billions to Africa's energy transition — yet a disproportionate share of that capital flows to large infrastructure projects and internationally-backed ventures, leaving the homegrown innovator navigating a funding desert.
Anne found her breakthrough through the European Union's LEAP-RE programme — the Long-Term Europe Africa Partnership on Renewable Energy — which channelled research funding through Strathmore University. It was a model that worked: institutional research funding bridging the gap to commercial development. But it also highlights a troubling reality. One of Kenya's most promising clean energy solutions was nearly stillborn because no domestic funding pathway existed for it.
"The work was real. The problem was real. The solution worked," says one of Anne's colleagues at Strathmore. "What nearly stopped it wasn't any of that. It was finding money to take it from a server to a phone screen."
Regulation presented a second, more insidious challenge. Kenya's energy sector, for all its renewable success, is riddled with bureaucratic complexity. Licensing requirements, grid expansion policies, and overlapping regulatory jurisdictions create a maze that larger, better-resourced companies can navigate but that can paralyze a small startup. Anne and her team found themselves spending time on compliance that should have been spent on product development.
The regulatory environment is not unique to Anne's experience. Research into Kenya's mini-grid sector — another critical piece of rural electrification — has documented how private operators have faced years-long delays in obtaining licenses, and how sudden changes in grid expansion policy can destroy a small company's business model overnight. In one documented case, a promising mini-grid operator in Kisii watched the national utility extend the main grid to within reach of its sites a year after launch, directly competing with and undermining its customer base.
For the small Kenyan clean energy entrepreneur, the system can feel like it was designed for someone else.
Sunsafe launched its pilot in Makueni and Machakos counties in early 2025. The response surprised even Anne.
The app works like a digital engineer in your pocket. A local electrician inputs basic information about a household — how many lights they need, whether they want phone charging capability, whether they have a small appliance — and the app outputs a precise, correct specification for the solar system that household needs. It eliminates the guesswork that has been destroying trust in solar technology for years.
In the pilot, the results were striking. Systems installed using Sunsafe guidance had dramatically lower failure rates. More importantly, the communities where the app was deployed began to speak differently about solar. The word "cheating" — which rural Kenyans often use to describe the experience of buying a solar product that fails — was disappearing from the conversation.
"When it works the first time, everything changes," Anne says. "The community trusts the technology. The technician has a career. The household has clean light. That's the whole chain."
The Sunsafe commercial release is now scheduled, following its beta phase — a milestone that represents years of research, bureaucratic navigation, funding fights, and near-failures. It is a product that was nearly killed a dozen times by systems that were not designed to nurture it.
Anne Wacera Wambugu's story is, in one sense, a personal triumph — a Kenyan engineer who refused to let a genuine solution die on a university server. But it is also a mirror held up to a structural failure in how Africa's energy transition is being financed and governed.
Kenya's clean energy ambitions are real. The government's target of 100% renewable electricity by 2030 is credible and within reach. Rwanda, similarly, is building a renewable energy infrastructure that has attracted over $300 million in recent international financing. The continent is moving.
But the people who best understand Africa's energy problems — who have sat in the smoke-filled kitchen, who know the informal electrician by name, who understand why a farmer in Machakos doesn't trust the next salesman who comes with a solar panel — are often the last people to receive capital, regulatory support, or institutional backing.
The LEAP-RE model that funded Sunsafe offers a template. So does the African Development Bank's growing portfolio of results-based financing in Rwanda, which ties funding disbursement to verified gains in energy access — keeping accountability with communities rather than just with spreadsheets. But these remain exceptions. The rule, for most African clean-tech founders, is to build in spite of the system, not because of it.
Anne is characteristically unsentimental about this. She is focused on the March launch, on the electricians in Makueni who are already using an early version of the app, and on the households who will have working solar systems because of what she built.
But she does allow herself one observation about the journey.
"Africa doesn't need to import solutions," she says. "It needs to fund the people who already have them."
This story draws on reporting from Anne Wacera Wambugu's work at Strathmore University, the LEAP-RE programme documentation, the Stockholm Environment Institute's research on Kenya's mini-grid sector, and the African Development Bank's energy financing reports for Kenya and Rwanda. Africa Reporters Network covers innovation, business, and development across the continent.