The shift towards renewable energy has gathered decisive momentum in recent years, with solar photovoltaic power now leading global electricity capacity additions. According to the International Energy Agency (IEA), solar is projected to account for nearly 80 per cent of new renewable capacity additions worldwide through the end of this decade. Global solar installations surpassed 2.2 terawatts in cumulative capacity in 2024, reinforcing its status as the fastest-growing source of electricity generation worldwide.
Within this global transition, Africa has begun to assert itself not as a marginal participant, but as a high-growth frontier. The continent recorded a historic surge in solar deployment in 2025, underpinned by regulatory reforms, private sector engagement, and falling equipment costs.
READ ALSO: Nigeria and Morocco: Building Africa’s Transcontinental Energy Bridge
According to the Global Solar Council’s Africa Market Outlook for Solar PV 2026–2029, Africa installed approximately 4.5 gigawatts of new solar photovoltaic capacity in 2025. This represents a 54 per cent increase compared with 2024, making it the strongest annual growth rate ever recorded on the continent.
Cumulative installed solar PV capacity across Africa reached roughly 12.5 gigawatts by the end of 2025. While this figure remains modest compared with Europe or Asia, the acceleration rate positions Africa among the fastest-growing solar regions globally in percentage terms.
The expansion was not limited to a single dominant market. Eight African countries installed more than 100 megawatts each during the year, compared with only four countries reaching that threshold in 2024. This broadening participation signals structural market deepening rather than isolated growth.
South Africa led installations with approximately 1.6 gigawatts of new capacity, driven by private embedded generation reforms and the continued rollout of its Renewable Energy Independent Power Producer Procurement Programme. Nigeria followed with roughly 803 megawatts, reflecting strong momentum in distributed and commercial solar systems. Egypt added about 500 megawatts, building on its established utility-scale base, while Algeria installed approximately 400 megawatts. Other contributors included Morocco, Zambia, Tunisia and Botswana.
One of the most revealing figures in the Outlook report is Africa’s solar module imports. In 2025, the continent imported approximately 18.2 gigawatts of solar modules, more than four times the officially recorded new capacity addition for the year. This discrepancy highlights the rapid and often under-reported expansion of distributed solar systems.
The report estimates that 44 per cent of new solar capacity installed in 2025 came from distributed systems, including rooftop installations, commercial and industrial systems, mini-grids and off-grid solutions. Given data limitations, the actual share may be even higher.
This distributed growth reflects both necessity and innovation. In many African countries, businesses and households have turned to solar to mitigate grid instability and rising diesel generator costs. Commercial and industrial consumers in South Africa and Nigeria, in particular, are increasingly investing in self-generation to stabilise operating costs and improve energy reliability.
Looking ahead, the Outlook projects that Africa could add between 31 and 33 gigawatts of new solar capacity between 2026 and 2029 under a medium-growth scenario. Annual installations are expected to exceed 7 gigawatts per year by 2028 if policy and investment momentum continue.
Such expansion would multiply Africa’s cumulative installed capacity several times over within four years. However, the report emphasises that this growth trajectory depends on grid reinforcement, streamlined permitting processes, improved access to capital and enhanced regulatory certainty.
Solar irradiation levels across the Sahel, North Africa and parts of Southern Africa remain among the highest in the world, providing a strong natural foundation. Yet capital costs remain elevated relative to developed markets, reflecting currency risk and financing constraints.
Energy Access and Development Imperatives
Africa’s solar acceleration must also be viewed through the lens of access and development. Approximately 600 million people in sub-Saharan Africa still lack access to electricity, according to World Bank estimates. Electricity demand across the continent is expected to grow steadily over the next decade, driven by urbanisation, industrial activity and demographic expansion.
Current annual investment in Africa’s energy sector stands at around 8 billion US dollars, significantly below the estimated 20 billion dollars required annually to meet universal energy access targets aligned with Sustainable Development Goal 7.
Solar technology has become central to narrowing this investment gap. The dramatic fall in module prices over the past decade, combined with declining battery costs, has improved project economics. Grid-connected and decentralised systems are increasingly competitive against fossil-fuel generation, particularly diesel.
Battery storage is emerging as a strategic complement to solar installations. South Africa and Egypt have begun integrating utility-scale storage systems to manage intermittency and enhance grid stability. Storage deployment is expected to expand significantly across leading markets by 2029.
Africa’s solar expansion aligns closely with global climate commitments under the Paris Agreement. Nationally Determined Contributions submitted by African countries increasingly prioritise renewable energy deployment as central to emissions reduction and resilience strategies.
At continental level, the African Union’s Agenda 2063 identifies sustainable energy as a pillar of long-term economic transformation. The Africa Renewable Energy Initiative further underscores the role of solar and wind in driving inclusive growth.
Multilateral finance institutions and development banks are scaling their engagement in renewable energy projects across Africa. Blended finance instruments and risk mitigation facilities are playing a critical role in crowding in private capital, particularly in frontier markets.
The expansion of solar capacity raises a strategic question: how much of the value chain will Africa capture domestically? At present, the overwhelming majority of solar modules and components are imported. Without targeted industrial policy, much of the economic value remains external.
South Africa and Egypt have initiated local assembly initiatives, while discussions around regional manufacturing hubs are gaining traction. A sustained installation pipeline could justify domestic production and create skilled employment across engineering, construction and maintenance sectors.
Globally, the renewable energy sector supports over 13 million jobs, according to the International Renewable Energy Agency. A rapidly scaling African solar market presents significant employment potential if supported by vocational training and industrial policy alignment.
A Frontier Defined by Execution
Africa’s addition of 4.5 gigawatts in 2025 represents more than incremental growth. It marks a shift in confidence, capability and ambition. The continent has moved from pilot projects to scaled deployment, from fragmented participation to multi-country expansion.
The coming years will determine whether this progress consolidates into sustained structural transformation. If annual installations surpass 7 gigawatts by 2028, as projected, Africa will firmly establish itself as one of the most dynamic solar growth regions globally.
The path forward demands coordinated policy, infrastructure investment, financial innovation and regional cooperation. The opportunity is clear. With abundant solar resources and growing demand, Africa’s place at the global clean energy frontier is no longer aspirational, it is increasingly measurable.
