ISO 19867-1:2018 is a set of laboratory test protocols for evaluating cookstove performance, published by the International Organization for Standardization. Their Voluntary Performance Targets are a set of baseline criteria defined as tiers – Tier 0 is worst, Tier 5 is best. These ISO Targets measure Thermal Efficiency, Exposure (PM2.5 and CO), Safety, and Durability.
In 2020 The World Bank suggested the addition of Convenience, Availability, and Affordability. Since President Biden recently announced the “end of the fossil fuel era” ARC is adding Climate to the list, resulting in the nice looking mandala seen above.
Is it possible that cookstoves that score well enough on these eight metrics might be more successful interventions? We think that combining technical and contextual measures will help in the design/manufacture/sales of consumer based products. (ARC has called for affordability to be included for decades.)
Since LPG, propane, alcohol derived from fossil fuels, and a large percentage of electric generation emit dangerous amounts of CO2 causing climate change, it may be that clean burning, carbon neutral biomass stoves will rank higher on an “energy ladder,” especially when multiple factors are considered.