Member - African Clean Energy

ACE is a social enterprise enabling clean energy access for rural households in Sub-Saharan Africa and South-East Asia.

Type Company
Founder 2011
Company Size 200
Member Type
Founders Ruben Walker and Stephen Walker
Headquarters 1093 ED Amsterdam, Netherlands
Social network
African Clean Energy


At African Clean Energy (ACE), we specialise in manufacturing and distributing the ACE One Energy System, a high quality solar-biomass hybrid enabling users to cook using significantly less fuel and offering access to electricity for mobile charging and lighting. We distribute by employing in-house sales teams and building last-mile distribution channels in the developing world which can facilitate remote households to gain access not only to the ACE One, but also to maintenance services, financial support and clean fuels. ACE is headquartered in Amsterdam, our flagship factory is in Lesotho, and we have ground operations selling B2C in Lesotho, Cambodia and Uganda. The ACE One provides a solution that addresses the full spectrum of Base-of-Pyramid energy needs. The device symbiotically pairs thermal and electric generation by using a solar-charged LiFePO4 battery to not only give users access to electricity, but also to power the ventilator needed to create a truly clean biomass combustion. This enables the product to have the cross-sectoral positive impact of a cookstove, with the business model of a solar home system. The ACE 1 is built with durable materials (8-12 years life cycle), uses 50-85% less fuel, burns any type of solid biomass (wood, charcoal, corn cobs, cow dung), and minimises smoke emissions to a negligible level to protect users' health. It is sold on a 6-9 month micro-loan and customers use the energy savings achieved with the product to pay back the investment. With this model, ACE is likely the only company that can give $2-a-day people access to a $100+ product.
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Headquarters 1093 ED Amsterdam, Netherlands

SDG’s of application

The Sustainable Development Goals are a call to action to end poverty, protect the planet and ensure peace and prosperity everywhere.
Clean Water and
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Affordable and
Clean Energy
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Industry, Innovation
and Infrastructure
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SDG 11
Sustainable Cities
and Communities
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SDG 12
Responsible Consumption
and production
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