Development of clean cooking facilities to boost climate change resilience in Malawi

By Dr Deepa Pullanikkatil, Co-Director Sustainable Futures in Arica and Co-Founder Abundance

The University of Glasgow’s project on “Sustainable Clean Cooking Facilities to boost resilience to climate change in Malawi” was amongst three out of over 30 applications that were funded by the Scottish Government’s Climate Justice Innovation Fund (CJIF) in 2019. This fund supports the delivery of climate justice related projects which field test the feasibility of new methods, technologies or approaches in tackling climate change, or trial new innovations on the path to scale.

This bioenergy project aims to help address deforestation in southern Malawi (Machinga) through delivering a sustainable biofuel production (biogas and biosyngas) using organic waste as fuel for clean and efficient cooking. The total funding is £122,583 and the project is implemented by the University of Glasgow (PI Dr. Nader Karimi) with partners in Malawi; Abundance, Fab Engineering, Lilongwe University of Agriculture and Natural Resources (LUANAR) and LEAD.

The partnership in this project goes back to 2016, when Dr.Karimi and Dr.Pullanikkatil were connected through Sustainable Futures in Africa network. Between 2017-2018, Dr.Karimi and his colleagues from the University of Glasgow led a Biomass Energy study in partnership with Abundance to understand Malawi’s specific energy issues. Seeing first-hand that people still use the three stone stove, that women walk far distances to collect firewood, the rampant deforestation and that even simple fuel efficient technologies were not widely used in Malawi, inspired Dr.Karimi to think of a solution specifically “engineered” for Malawi. Dr.Pullanikkatil undertook a residency at the University of Glasgow in 2018, funded by the Engineering and Physical Sciences Research Council, which gave her the opportunity to engage further with Karimi and connect him to colleagues in Malawi, who later became partners of this CJIF project.

This project addresses the need for clean energy and contributes towards improving energy security using a novel and innovative technology designed for Malawi. In Malawi only 11% of the population have access to electricity and 98% of people use wood fuel for cooking (a figure that remains unchanged since 2010). Exposure to smoke from cooking has severe negative health impacts and even in urban areas of Malawi, firewood is mainly used in open three-stone fires. The use of firewood and charcoal has contributed significantly to deforestation and the need for cleaner energy sources which are more efficient for cooking is much needed in Malawi. Majority of the clean energy interventions in Malawi focus on using “less” firewood or charcoal, through increasing efficiency of stoves, this project improves on this approach by eliminating firewood altogether as fuel and replacing it with organic waste.

The project responds to the needs of Malawi as articulated by its Government. Regionally, clean and efficient Energy is a priority as noted in the Southern African Development Community (SADC)’s Protocol on Energy, to which Malawi has been a signatory since 1996. Nationally, the overarching development master plan for Malawi is the “Malawi Growth and Development Strategy” or MGDS. The latest MGDS III has ranked Energy as one of its five key priority areas and calls for technologies that can aid rural areas to have affordable, clean and efficient energy. Furthermore, Malawi’s Climate Change Policy and Strategy has acknowledged the need for efficient and clean energy to help Malawi reach its climate action goals.

Using an innovative approach of combining biogas and biosyngas, this project is developing a clean and efficient energy technology that can help Malawians rise the energy ladder and also contribute towards achieving climate action goals. The reason to combine biogas and biosyngas technology is due to Malawi’s unique climate; a hot and rainy season from mid-November to April and a relatively cool and dry season from mid-May to mid-August. During the wet season, plenty of wet orgnic waste will be available, while in the dry season, it will be dry organic waste. A technology that can only work with wet biomass/organic matter will not be suitable for the dry season and vice versa; hence this innovative combination of biogas and biosyngas. Furthermore, this innovative technology is completely smokeless, which is different from the previously piloted efficient cooking technologies such as fuel-efficient stoves, which reduce smoke, but not completely remove it.

Through this project, a nationwide survey on biomass availability and its combustion properties was done by LUANAR in March 2020. Fab Engineering has assembled the energy plant with designs and instruction from the PI and colleagues from University of Glasgow. Currently, the plant is being tested with various types of waste including cow dung and rice husks, both of which are wastes readily available in the site where the technology will be piloted. The energy plant will be piloted at the kitchen of the Chilimba Primary school at Mbando village, where Abundance has been working since 2016. Abundance has set up a youth waste collection team of 10 men and 10 women, who have begun collecting dry and wet wastes at Mbando village. They have been able to find rice husks from a nearby rice mill, sugarcane waste and cowdung from smallholder farms within the village.

The testing of the cooker is ongoing and preliminary results are promising, as evident in the pictures where the gas flame successfully boiled water in a pot. Abundance’s Ruth Mumba and Grace Moyo visited Fab engineering where Andrew Khonje was manufacturing the gasifier plant.

COVID-19 has challenged the project team to undertake work with less physical contact with Mbando villagers. Meetings were held at the village with safe distancing. Malawi did not have a lockdown, however the team shared masks, cleaning materials with Mbando village and purchased a smartphone to ease communication for the Community Coordinator. As the number of cases of COVID-19 declined in the past weeks, a site visit was done on 8 October 2020 by Fab engineering and Abundance’s team. Stewart Paul, who recently returned from the University of Glasgow with a master’s degree joined Ruth Mumba and Grace Moyo in the visit.

The site chosen for the piloting is a kitchen used by Mary’s Meals, a Scottish charity that provides nutritious mid-day meals to children. Abundance shared the project idea with them and were delighted when they delivered 732kg of Corn Soya Blend (CSB) flour to Abundance’s offices in Zomba which will be used for the piloting phase. During piloting phase CSB porridge will be cooked and served to approximately 1200 children in the primary school. The partnership and generocity of Mary’s Meals in this project is much appreciated.

It is already well reflected in the open literature that extensive use of firewood and charcoal has led to massive deforestation and significant health issues in Malawi. This project aims to address the deforestation problem using organic waste in an innovative cooker instead of firewood or charcoal. The users of the technology are Mary’s Meals staff and teachers from Chilimba Primary School in Mbando village. In this regard, an indemnity form has also been signed by Abundance and Chilimba school to indemnify Mary’s Meals of any issues arising from the project. The piloting will be done for several weeks where the cooker will be tested. These users will be interviewed to improve the technology design and a reengineered design will be made that addresses their concerns. This way, the design is informed by local knowledge. After completion of the project, the system stays in the school and will be a permanent asset for the Mbando community. The project results will be widely disseminated through networks such as the SFA and private sector in Malawi will be encouraged to upscale the technology. The project will end in March 2021 and it is hoped it will leave a lasting legacy at Mbando village.