Weighting based on cooking fuel mix was applied where possible. Black carbon data from 12 sources were included, and this contributed a significant portion of the emissions reduction.įinancial variables (the costs of traditional and improved stoves) have largely been obtained from sources such as the World Bank (2010) and US EPA (2015). Organic carbon consists of scattering particles and aerosols that are considered to have a global cooling effect. There is wide consensus on the impact of black carbon, but its magnitude is still under study-mainly because of the impacts of other components emitted with it during open combustion, such as organic carbon. In addition to carbon dioxide emissions, black carbon is also an important factor to consider for the clean cookstoves solution. Scenario 2: full achievement of the UN SDG of 100 percent access to clean cooking by 2030 using linear projections of adoption in each region included in the analysis (aligned with the IEA Sustainable Energy Scenario (SES).Įmissions mitigation variables were based on several peer-reviewed sources and weighting, calculating an estimated 43 percent of fuel saved from the clean cookstoves compared to the traditional stoves.Scenario 1: Aligned growth that matches the IEA New Policies Scenario (NPS).The IEA has developed a Sustainable Energy Scenario (SES) which matches the UN goal.įor clean cookstoves, two scenarios were developed: With the UN goal of 100 percent access to clean cooking by 2030, this was the main guide in identifying and using data for developing scenarios, considering its humanitarian significance that aligns with the climate objectives of Project Drawdown. These were assessed in comparison to a Reference Scenario, in which the solution’s market share was fixed at the current levels. Impacts of increased adoption of clean cookstoves from 2020 to 2050 were generated based on two growth scenarios. This figure was derived, in part, from data on clean cooking as guided by the UN Sustainable Development Goals (SDG’s) which call for universal access to clean energy by 2030 which would have significant health and societal benefits for the families involved. These values, along with global data from the International Energy Agency (IEA, 20), were used to develop a composite global market for the period 2014–2050.Ĭurrent adoption of clean cookstoves was estimated at 53 percent of families in the regions selected for this analysis. From the literature review, assumptions were derived for population growth, average population per household, average household useful energy use for cooking per capita, a weighted average energy efficiency factor for stove and fuel type mix, and the percentage of the population using solid fuels. The total addressable market is defined as the total terawatt-hour therms final energy used for cooking in all regions except OECD90 and Eastern Europe (that is, Middle East & Africa, Asian sans Japan, and Latin America). This analysis evaluates the growth of improved clean cookstoves as a replacement for traditional cookstoves around the world. Tiers 2–4 are considered improved clean cookstoves. Tiers 0 and 1 constitute the basic, traditional, solid-fuel-based stoves. The type of cookstove is determined by the International Organization for Standardization tier based on thermal efficiency and emissions. Traditional stoves can be improved in three different ways, as named above. These traditional cooking practices impact not only global carbon dioxide-equivalent emissions from fuel combustion, but also the health of rural populations of the developing world due to household air pollution. This is projected to increase by 8 percent by 2030. This solution replaces traditional cookstoves that burn wood and/or charcoal inefficiently and without ventilation.Ĭurrently, about one-third of world’s population (2.7 billion people) depends on solid fuels including fuelwood and crop residue, for cooking. Project Drawdown defines clean cookstoves as solar-powered or fuel-burning household stoves that reduce greenhouse gas emissions by increasing thermal efficiency, reducing specific emissions, or increasing ventilation.
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