Nairobi Energy Efficiency Policy Training Week


Mathilde Lenartowicz

Sustainable Energy for All

Sustainable Cooling Advisor


Tilly Lenartowicz is an Independent Consultant and Cooling Advisor to Sustainable Energy for All. Her work focuses on increasing awareness, understanding, and application of sustainable cooling solutions in cities and buildings. With a background in Environmental Engineering and as a member of the Chartered Institute of Building Services Engineering, Tilly has dedicated over a decade to the built environment sector. She has worked extensively across the design and construction process, aiming to integrate climate-responsive, healthy, and energy-efficient systems into architecture. Her experience includes several years as a Director with the architecture and engineering practice, MASS Design Group, where she contributed to impactful building projects in various African countries. Tilly is based in Kigali, Rwanda.