Africa, a continent blessed with unparalleled solar resources, faces the paradox of immense energy poverty, with over 660 million people lacking electricity. This article explores how innovative off-grid solar solutions, pioneered by startups like Altech, are not just providing light but fostering education, health, and economic independence, transforming lives across the continent despite significant investment challenges.
Globally, over 660 million people currently lack access to electricity, with a staggering 85% residing in Sub-Saharan Africa. This profound energy deficit defines daily life for millions, shaping their opportunities, health, and economic prospects. One individual who intimately understood this reality was Washikala Malango, whose childhood experiences fueled a mission to illuminate his continent.
Malango grew up in Baraka, a village in the Democratic Republic of Congo (DRC), where electricity was a luxury most couldn’t fathom. Even today, approximately 78% of the DRC’s population lives without power, according to the World Bank. He remembers relying on kerosene lamps for light, a common but dangerous practice. One night, a candle fire engulfed his mattress, a terrifying reminder of the perils of inadequate energy sources. These formative years, further intensified by his time in a Tanzanian refugee camp during the Congolese civil war, instilled in him and his friend Iongwa Mashangao a deep commitment to eradicating energy poverty.
In 2013, this conviction led them to launch Altech, a startup focused on providing easy-to-install home solar kits to off-grid communities. Their goal was clear: to bring reliable and clean electricity to those who needed it most, directly addressing the negative impacts of expensive and dirty energy sources on household income, health, and learning.
Africa’s Unlimited Potential, Yet Underfunded
Africa is often called the “sun continent,” boasting more sunshine hours and some of the highest levels of solar irradiance globally. The African Development Bank recognizes its “almost unlimited” potential for solar energy. Theoretically, Africa’s solar energy reserves are estimated at 60,000,000 TWh/year, accounting for nearly 40% of the world’s total, making it the most sun-rich continent.
Despite this immense natural advantage, the continent’s installed solar capacity stood at a mere 21.5 gigawatts in 2024, according to the International Energy Agency (IEA). This pales in comparison to global leaders like China, which added 198 GW in just five months of the same year. The disparity highlights a critical gap between potential and realization.
Several factors impede large-scale solar adoption and grid expansion in Africa:
- Scattered Populations: Many African countries feature low-density population centers, making traditional grid expansion economically challenging.
- High Infrastructure Costs: Extending national grids beyond urban areas incurs substantial financial and logistical hurdles.
- Regulatory and Policy Issues: Unclear government policies and regulatory bottlenecks deter large-scale investment.
- Conflict and Unrest: Political instability and civil strife in many regions directly hinder project development and financing.
- High Upfront Costs: Large-scale solar farms require significant initial capital, a major barrier for many developing nations.
Multinational initiatives like “Mission 300” (involving 29 nations) and the African Development Bank’s “Desert-to-Power Initiative” (aiming for 10 GW in 11 Sahel countries by 2030) seek to address these challenges. However, progress has been slow, often hampered by ongoing civil unrest and insufficient financing. Historically, Africa has received only 2% of global investment in renewables over the past two decades, despite its vast untapped resources.
The IEA estimates that achieving universal electricity access in Africa by 2030 would require an annual investment of $25 billion. While private sector investment in African renewables is growing, it still falls short of this crucial target, according to IEA reports.
The Power of Off-Grid Solutions: A Bridge to Energy Equity
In this context, distributed solar solutions—including home solar systems and mini-grids—are emerging as vital tools, expected to account for 42% of solar PV expansion in the next five years. Heymi Bahar, a senior renewable energy markets analyst at the IEA, describes these systems as a “bridge while waiting for the grid.” The falling cost of solar technology makes it an increasingly attractive alternative to expensive and polluting diesel generators.
However, the initial upfront cost of solar PV remains a significant hurdle. Only an estimated 22% of households without electricity can afford a basic “tier 1” solar kit, which provides about four hours of daily electricity. This highlights the crucial role of government policies, venture capital, and seed funding in accelerating solar adoption.
For investors, the uncertainty surrounding grid expansion poses a major risk to off-grid projects. Clear policies and transparent planning are essential to “de-risk” these investments and attract external financing. In the interim, innovative startups are stepping up.
Altech’s pay-as-you-go model, introduced in 2022 with mobile payments, allows customers to acquire solar kits without a prohibitive upfront payment. With an average daily income of $3.92 in the DRC, even a $13 solar lamp was previously out of reach for many. Altech’s entry-level systems cost around 50 cents per day over 100 days, while more comprehensive “power systems” with induction stoves and freezers are available for $1 per day over five years. Their most popular solar home system, featuring two 50-watt panels, powers a television, radio, soundbar, fan, phone charger, and two bulbs for approximately 50 cents per day, paid over three years.
Beyond economic savings—households would otherwise spend hundreds annually on kerosene—these systems drastically improve the quality of life:
- Education: Reliable lighting allows children to study at night, enhancing educational performance.
- Health: Reduced exposure to harmful pollutants from kerosene and minimized risks of accidental fires and smoke inhalation, as highlighted by the World Health Organization.
- Convenience: Simple tasks like charging a mobile phone become infinitely easier and cheaper. Previously, people would spend $1-$3 at diesel generator-powered shops, risking theft or loss.
To date, Altech has positively impacted over 2.5 million people in the DRC, exemplifying the profound reach of decentralized energy solutions.
The Quest for Energy Equity and the Next Generation
Altech is not alone in this critical mission. Across Africa, a growing ecosystem of startups is innovating to fill the energy gaps:
- M-Kopa (Kenya): A pioneer in the pay-as-you-go solar sector since 2011, it has expanded into digital finance, smartphones, and e-mobility.
- Izili (formerly Baobab+): Operating in Nigeria, Senegal, Madagascar, and Ivory Coast, it has delivered solar kits and off-grid cooking stoves to 2 million people, backed by over $21 million in funding.
- LightBox Africa (South Africa): Offers micro-financed solar kits repaid over three years.
- Nuru (DRC): Meaning “light” in Swahili, this startup focuses on solar mini-grids for remote communities, securing $40 million in 2023 to build Sub-Saharan Africa’s largest mini-grid.
These off-grid solutions often provide “first-time access” to African households, which is particularly significant given the continent’s large youth demographic—with 70% of Sub-Saharan Africa under 30. This access creates opportunities for education and economic participation that were previously unimaginable, directly addressing the “vicious cycle” where a lack of power prevents the ability to pay for it, and vice versa. As IEA analyst Bruno Idini notes, this is where solar home systems and mini-grids play a pivotal role.
