Inyenyeri Fuel Pellets
Inyenyeri Fuel Pellets are dense biomass fuel pellets designed to be used in gasifier cookstoves.
Through a program, the cookstove is free for rural households, but in return users must provide an ongoing supply of biomass feedstock as a contractual obligation. However, for urban households, an annual usage fee (e.g., $6-7 USD per stove) is required, in conjunction with a commitment of using Inyenyeri pellet fuel.
The pellets can be obtained through Inyenyeri’s Collection Hubs or Retail Shops. The Rural Collection Hubs are located in rural areas where collecting firewood is the norm, whilst the Urban Stores are located in areas where the charcoal is the norm.
Between 2013 until 2017, Inyenyeri had over 2,000 customers of their Fuel+Stove system. By year end 2018 the company aims to serve 30,000 households.
What is the material composition of the fuel (e.g. ethanol, biogas, agricultural residues, etc.)
MJ/kg, energy content per gram
What are the main pollutants when the fuel is combusted? (e.g. CO, PM2.5)
The fuel pellets are made from a mixture of dry biomass (agricultural waste, etc.) that would otherwise be collected and burned as waste by rural Rwandan households. Wood from trees is not used.
Support staff available by phone or in person.
Manufacturers specify performance targets including: 25% savings compared to charcoal, long lasting (1 kg burns ~ 1.5 hrs), and 92% less wood usage compared to charcoal.
Through a partnership with UNHCR, Inyenyeri provided 300 refugee families in Kigeme camp with their Stove+Fuel solution. These families stated that cooking with the stove had a positive impact on their health by reducing their exposure to toxic emissions. The UNHCR also stated that the biomass required to cook meals reduced by 80-90% compared to the baseline.
Fuel pellets are usually a safe fuel for small users like households. However, since they are made with combustible materials, the risk of fire will always be a concern as well as harmful gases emissions like carbon dioxide and monoxide, nitrogen oxides, and hydrocarbons.
The Inyenyeri Fuel Pellets are part of Inyenyeri’s Fuel+Stove system. The type and quantity of stoves depends on the size of the family.
Report: Clean and Improved Cooking in Sub-Saharan Africa. (2014). World Bank Group.
A randomized control trial to determine the impact of Inyenyeri’s business model was conducted from 2015-2017. However, technical evaluation for the biomass pellets is unknown.
Inyenyeri’s biomass pellets are part of their Fuel+Stove system, in which they offer high-tech stoves to customers that agree to buy their fuel.
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