Smart Cities: Urban Tech, Sustainable Growth

By Peter Nalika

Africa is undergoing rapid urbanization, and experts estimate that by 2050, over 1 billion people nearly 60 percent of the continent’s population will live in urban areas. Such rapid urban growth presents a double-edged challenge. While cities serve as engines of economic development, they also strain infrastructure, increase pollution, and deepen social inequalities. In response, African countries are turning to smart cities, urban areas that leverage digital technologies and intelligent infrastructure to enhance liveability, sustainability, and governance. With innovations such as the Internet of Things [IoT], artificial intelligence [AI], renewable energy, and data-driven decision-making, smart cities aim to tackle urban challenges more efficiently.

However, to truly transform the continent’s future, governments and planners must approach smart urbanization with a focus on affordability, inclusivity, and environmental responsibility, ensuring that such progress benefits all citizens, not just the privileged few.

There are already some pioneer smart city projects shaping across the continent. Konza Technopolis in Kenya, also known as the Silicon Savannah, is a 14.5-billion-dollar project meant to be a technology and innovation hub, running on renewable energy and fast network connection. Eko Atlantic is an emerging futuristic city on reclaimed land in Nigeria, designed to be flood-resistant and featuring energy-efficient infrastructure.

Vision City, Rwanda, within the bigger scope of smart city Kigali, includes IoT traffic and waste management sensors, whereas Tatu City in Kenya is a mixed-use project that involves smart technologies to alleviate traffic congestion and pollution. Such undertakings represent the desire of Africa to skip past conventional methods of urbanization, but they also pose important questions regarding their scalability, affordability, and fair accessibility.

Smart Cities
Peter Nalika, Technologist and Communication Consultant
Role of IoT and Big Data

Advanced technologies power smart cities, boosting efficiency and improving quality of life. IoT and big data play a key role, with sensors tracking everything from traffic patterns to air quality. In Nairobi, companies like Lori Systems use AI to optimize waste collection routes, significantly cutting costs and emissions.

AI and machine learning are also transforming urban governance. Johannesburg’s collaboration with Google’s Project Green Light employs AI to predict and alleviate traffic congestion. At the same time, Rwanda utilizes drones and AI for urban planning and emergency response. Energy sustainability is another critical focus, with cities adopting solar microgrids and battery storage solutions to combat frequent power outages. Kenya’s M-KOPA Solar, for instance, offers pay-as-you-go energy systems. On the other hand, South Africa is experimenting with blockchain-enabled smart grids to improve energy distribution. Additionally, digital public services are streamlining governance. Platforms like Kenya’s eCitizen and Rwanda’s Irembo reducing bureaucracy and corruption through online service delivery.

Challenges Still Abound

Despite the progress made, major obstacles still hinder the widespread adoption of smart cities in Africa. High costs and funding gaps continue to be major barriers. Most smart city projects demand heavy investment and tend to cater to high-income populations, leaving low-income communities underserved. Public-private partnerships and innovative financing models must step in to close this gap.

The digital divide also widens the challenge. Over 40 percent of Africans still lack internet access. Without targeted efforts to expand affordable broadband and improve digital literacy, smart cities risk becoming exclusive spaces for the wealthy.

Inadequate infrastructure and outdated policies further slow progress. Frequent power outages, poor road networks, and rigid regulations make development difficult. While countries like Rwanda and Mauritius have introduced progressive policies and surged ahead, others must establish stronger, forward-looking regulations to catch up.

Environmental and social risks also demand attention. The expansion of tech-based solutions may increase e-waste, energy consumption, and the displacement of informal settlements. To manage these risks, governments and developers must prioritize sustainable design embracing green buildings, renewable energy, and circular economy practices from the outset.

Way Forward

A complex approach is necessary to make smart cities in Africa sustainable and inclusive. It has to start with affordable and inclusive solutions. They are integrated with low-cost IoT applications serving informal settlements, and community-driven innovations such as Kenya’s M-Pesa to pay utility bills. Public Public-private partnerships will be key to expanding these initiatives. For instance programs such as Equiano submarine cable expanding internet connectivity and startups such as Sendy and OkHi. They show how private sector innovation can make city life better. The green and resilient designs must take center stage with the use of solar-powered systems, waste-to-energy initiatives, and climate-smart buildings to battle environmental issues

Additionally, there is a lack of strong policies and frameworks for data privacy, open-data initiatives, and smart city policies which would ensure transparency and accountability. 

Ultimately, Africa’s smart city revolution must prioritize people over technology. The continent has a unique opportunity to redefine urbanization by creating cities that are not only technologically advanced but also equitable, sustainable, and resilient. Governments, investors, and citizens all have roles to play governments in crafting inclusive policies. Investors can fund scalable solutions, and citizens in advocating for and participating in sustainable urban development. The future of Africa’s cities is being shaped today. Thoughtful planning and collaboration will create a future that benefits everyone.

Peter Nalika is a Technologist and Communication Consultant
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