Africa Solar Revolution: South Africa, Morocco, and Kenya Lead $12 Billion Investment Surge

Africa's solar energy sector has entered a period of explosive growth, attracting approximately $12 billion in investment in 2025 and adding an estimated 8.5 gigawatts (GW) of new solar capacity to the continent's power generation fleet. The investment surge, documented in the International Renewable Energy Agency's (IRENA) Africa Solar Outlook 2026 report, reflects the dramatic decline in solar technology costs, the urgency of addressing Africa's chronic energy deficit, and the growing recognition that solar power represents the fastest and most cost-effective path to universal electricity access on the continent.

South Africa has been the epicenter of Africa's solar revolution, driven by both utility-scale projects and an unprecedented rooftop solar boom. The country's installed solar capacity reached 9.2 GW in 2025, up from 4.8 GW in 2023, making South Africa the largest solar market in Africa by installed capacity and one of the top 10 solar markets globally.

The rooftop solar segment has been particularly remarkable. South African households and businesses installed approximately 4.5 GW of rooftop solar capacity between 2023 and 2025, driven by persistent electricity supply problems and the declining cost of solar panels and battery storage systems. The average cost of a residential solar and battery system in South Africa has fallen from $8,000 per kilowatt in 2022 to $4,500 per kilowatt in 2025, making solar an economically attractive alternative to grid electricity for millions of households and businesses.

The mass adoption of rooftop solar has had significant implications for Eskom, South Africa's national power utility. Eskom's electricity sales declined by approximately 8 percent between 2023 and 2025 as customers migrated to solar. The utility, which has historically relied on electricity sales to fund its operations and debt service, has faced a vicious cycle of declining revenue leading to deferred maintenance leading to poorer supply reliability leading to more customers adopting solar.

Eskom's CEO, Dan Marokane, acknowledged the challenge at a media briefing in March 2026. "The shift to rooftop solar is a structural change that Eskom must adapt to," Marokane said. "We cannot fight it -- it is happening and it is accelerating. Our strategy must be to integrate distributed generation into our grid, to provide the storage and grid services that make solar viable at scale, and to transform Eskom from a generation-centric utility into a platform for energy services."

Morocco has emerged as Africa's second-largest solar market, with installed capacity reaching 3.8 GW in 2025. The Noor-Ouarzazate solar complex, the world's largest concentrated solar power (CSP) facility, has been expanded with the completion of Noor III, a 150-megawatt tower CSP plant that includes 7 hours of thermal energy storage, enabling it to generate electricity after sunset. The Noor complex now has a total capacity of 580 megawatts and supplies approximately 1.2 million households.

Morocco's solar ambitions extend far beyond Noor. The country's National Energy Strategy, updated in 2024, targets 52 percent renewable energy in the power mix by 2030, with solar contributing 20 GW of the total 25 GW renewable target. Morocco has attracted significant international investment, including a $2.5 billion partnership with Saudi Arabia's ACWA Power to develop the Noor Midelt II solar PV and CSP hybrid project (800 MW) and the Noor Tafilalet project (600 MW).

Kenya's solar sector has grown rapidly, with installed capacity reaching 1.2 GW in 2025. The country's geothermal resources have traditionally dominated its renewable energy mix, providing approximately 47 percent of electricity generation, but solar has emerged as a complementary resource. The 50-megawatt Garissa Solar Park, commissioned in 2019, was East Africa's largest grid-connected solar plant at the time of its completion. It has since been surpassed by the 100-megawatt Alten Renewable solar plant in Kajiado County, commissioned in 2025, and the 80-megawatt Rumuruti solar project in Laikipia County, expected to be commissioned in the second half of 2026.

Kenya's Energy and Petroleum Regulatory Authority (EPRA) has approved 23 additional solar projects with a combined capacity of 1.8 GW, currently at various stages of development. The projects are being developed by a mix of international and local investors, including Globeleq (UK), Alten (France), and several Kenyan independent power producers.

The economics of solar energy in Africa have become compellingly favorable. The levelized cost of electricity from utility-scale solar PV in Africa has fallen to an average of $0.03 to $0.05 per kilowatt-hour, making it the cheapest source of new electricity generation on the continent. In comparison, the average cost of electricity from diesel generators -- which supply approximately 40 percent of Africa's electricity needs, particularly in areas not connected to national grids -- ranges from $0.20 to $0.40 per kilowatt-hour.

Mini-grids and off-grid solar solutions are playing a critical role in extending electricity access to rural areas. The International Energy Agency (IEA) estimates that approximately 600 million people in Africa lack access to electricity, the majority in rural areas where grid extension is prohibitively expensive. Solar home systems (SHS), solar lanterns, and community mini-grids are providing first-time electricity access to approximately 25 million people annually.

Companies including M-KOPA (Kenya), ENGIE Energy Access (operating across multiple African countries), Zola Electric (Tanzania), and SunPower (Nigeria) have collectively sold over 30 million solar home systems across Africa. M-KOPA, the largest provider, has connected 4.5 million households and offers pay-as-you-go solar systems financed through mobile money, with average payments of $0.50 per day. The company has expanded beyond solar to offer financing for smartphones, televisions, and electric scooters, creating an integrated clean energy and consumer finance ecosystem.

The World Bank's Lighting Global program estimates that the off-grid solar sector attracted $1.8 billion in investment in 2025, including $600 million in debt financing from development finance institutions and $350 million in equity investment. The sector has created approximately 350,000 direct jobs across the continent, including installation technicians, sales agents, and customer service representatives.

Challenges persist. Africa's solar sector faces infrastructure constraints including limited grid integration capacity, inadequate transmission infrastructure, and the absence of energy storage solutions at scale. Regulatory frameworks in many countries have not kept pace with the technology's evolution, with cumbersome licensing processes, tariff disputes, and payment delays discouraging private investment. The concentration of solar panel manufacturing in China (which produces approximately 85 percent of the world's solar panels) raises supply chain security concerns.

Dr. Fatih Birol, executive director of the International Energy Agency, described the opportunity in stark terms at the IRENA Assembly in Abu Dhabi in January 2026. "Africa has the best solar resource in the world, the highest unmet demand for electricity, and the greatest need for affordable, clean energy," Birol said. "Solar power can address all three challenges simultaneously. The $12 billion invested in 2025 is a good start, but Africa needs $60 billion annually in renewable energy investment to achieve universal energy access by 2030. The gap between where we are and where we need to be is still enormous."

For Africa's 600 million people living without electricity, the solar revolution is not an environmental aspiration -- it is a development necessity. Every solar panel installed, every mini-grid connected, and every solar home system financed represents a family that can study after dark, a clinic that can refrigerate vaccines, and a business that can operate without the crippling cost of diesel fuel. The sun is Africa's most abundant and most democratic resource. The task is to harness it at the scale and speed the continent requires.