Solar-Powered Cookers Revolutionize Energy Access in Rwanda

Solar-powered cookers are revolutionizing access to clean energy in Rwanda, offering households an alternative to traditional firewood or charcoal stoves. These innovative devices, co-designed with local communities, improve air quality and reduce environmental impact by curbing deforestation and emissions.

Solar innovation remains crucial for the planet

Globally, around 30% of the population lacks access to clean cooking facilities, and 10% lack electricity, with these gaps disproportionately affecting women and children. Solar technology, which harnesses abundant and renewable energy, presents a sustainable solution to these persistent challenges.

Through the Solar Energy Transitions (SET) project, Coventry University researchers led by Dr. Jonathan Nixon and Dr. Alison Halford partnered with local energy experts and the community in East Kayonza to install solar-powered electronic cookers in 20 households. Over seven months, the team monitored energy use, air quality, and cooking habits using over 100 sensors.

The results are striking:

• Firewood consumption fell dramatically from 3.4 kg per day to just 0.86 kg per day.
• Kitchen air quality improved by more than 70%, creating healthier living environments.
• Cooking times were significantly reduced, giving families more time for education, work, and leisure.

One community member shared, “I no longer run in fields looking for firewood. We eat on time and children go to school on time.”

Solar-powered cooking systems offer more than convenience—they address critical issues like energy inequality and environmental degradation. The solar cookers rely on clean, renewable energy, eliminating the costs and environmental toll of traditional fuels while ensuring reliable performance even in remote areas.

The project, funded by Innovate UK’s Energy Catalyst Round 9, took a collaborative approach, engaging local residents through participatory workshops. Women, often the primary users of cooking systems, were central to the design process, ensuring the technology met their unique needs.

Assistant Professor Alison Halford, Co-Investigator, Research Centre for Computational Science and Mathematical Modelling, said, “Our findings demonstrate the tangible health, economic and environmental benefits that solar e-cooking can bring. This project shows the potential of clean cooking solutions to improve lives in even the most remote communities.”

Dr. Nixon highlighted the importance of solar power in fostering sustainable development, “This project highlights how community-driven innovation can address global challenges like energy inequality and indoor air pollution. By working together with local households, we’ve seen how solar e-cooking not only transforms daily life but also builds resilience and hope for a more sustainable future.”

The initiative underscores the vital role of solar energy in achieving global Sustainable Development Goals, particularly in ensuring access to affordable, reliable, and sustainable energy for all.

Findings from the project are already informing future e-cooking policies and product development, while data generated by the research are openly available for further exploration.