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Africa’s energy trilemma: Achieving security, equity and sustainability

  • By Nii Ahele Nunoo

Africa’s energy sector faces a fundamental challenge: balancing the three competing priorities of the energy trilemma – energy security, energy equity and environmental sustainability.

Although the energy trilemma is a problem that many regions are tackling, for Africa, it is particularly pressing, as over 600 million people here live without electricity, power outages are frequent and climate change is having an impact.

Each element of the energy trilemma is critical for Africa. Energy security ensures a stable supply of energy. Energy equity requires affordable, universal access and environmental sustainability necessitates limiting emissions and environmental damage. Improving one of these components often weakens another. Africa must find a path forward that minimises tradeoffs and maximizes long-term value for its energy sector.

Unpacking Africa’s energy trilemma

1. Energy equity: Who gets power and who doesn’t?

Access to electricity in Africa is uneven and insufficient. Sub-Saharan Africa holds the largest share of the global energy-poor population, with some regions seeing electrification rates below 5%. This energy shortfall affects economic growth, job creation, education and healthcare delivery.

Most electrification gains have come from decentralized solar power. Solar power is scalable and fast to deploy. Africa is at the forefront of its rollout, but solar power is not always sufficient to run energy-intensive services like factories. Solar drives minor reductions in energy poverty, while failing to be a catalyst for broader, more impactful transformation. In regions where population growth outpaces grid development, energy access gaps will persist without significant infrastructure investment.

2. Energy security: Can the lights stay on?

Africa’s energy systems are unreliable. Over 75% of the continent’s electricity is generated from fossil fuels, such as natural gas, oil and coal. Most of Africa’s energy infrastructure is outdated, a trend exacerbated by a lack of investment in new power plants, transmission systems and maintenance technology.

As a result, outages are the norm. In Tanzania, power disruptions average over 60 days per year and in Burundi, it’s over 140 days. These outages halt production, disrupt services and increase costs. Manufacturers often rely on diesel generators, which are expensive, polluting and inefficient. Stable electricity is the exception for businesses and households, not the rule.

3. Environmental sustainability: Africa’s high stakes

Africa is responsible for less than 4% of global CO₂ emissions, but climate change has an outsized impact on the continent. Floods, droughts, desertification and heat waves are rising. Climate risk is an ongoing and persistent constraint on development, agriculture, water access and public health.

Renewables offer a way forward, though the journey will be challenging. Africa possesses abundant solar, wind, hydro and geothermal resources, but they remain largely untapped due to the following barriers:

• Upfront capital requirements

• Grid integration challenges

• Lack of clear national policy frameworks

• Weak incentives for private investment

Without structural reforms, clean energy development will lag and fossil-fuel reliance will deepen.
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