クリーンに輸出し、汚れて暮らす：ラオスにおける電力輸出、脱炭素化、クリーン調理の調和

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:Provides a rigorous whole-system modeling framework linking energy exports, decarbonization, and health outcomes, useful for integrated assessment studies.

🏢実務担当者:Highlights that renewable exports do not substitute for domestic decarbonization policies; useful for companies assessing transition risks in similar contexts.

🏛政策担当者:Demonstrates that targeted policies are needed for each energy challenge, not just expanding renewables; relevant for national energy planning.

Renewable electricity is often expected to strengthen energy security, improve public health and reduce emissions by replacing fossil fuels. These benefits may not extend across the energy system in hydropower-rich economies that export electricity while relying on imported transport fuels and solid biomass for cooking. Lao PDR is an example of this disconnect. It exports approximately two-thirds of its electricity generation, imports nearly all liquid fuels and meets about 97% of cooking demand with solid biomass. We use a whole-energy-system model of Lao PDR, coupled to household air pollution accounting, to examine three policy choices: how much hydropower is retained for domestic use, how tightly carbon emissions are capped, and how quickly cooking-related air pollution is reduced. We combine three levels of ambition for each policy in 27 scenarios. The three policy levers largely address their targeted outcomes, with limited cross-objective benefits. The best cooking intervention averts 0.9 million of the 3.3 million healthy life-years otherwise lost to household air pollution between 2023 and 2050. This also brings a modest transport-related climate benefit. Neither the carbon cap nor changes to hydropower exports reduce the health burden from cooking. Using more hydropower domestically lowers system costs by USD 4–8 billion, depending on whether long-term export contracts are revised. The liquid-fuel import bill falls from USD 48 billion to USD 29 billion only when transport decarbonisation is imposed. The cost-optimal pathway and the pathway with the least health burden do not achieve overall emissions reductions. For the Lao PDR, abundant renewable electricity does not, by itself, reduce the dependence on imported fuels, household air pollution, or emissions across the energy system. Each problem requires a policy directed at it.

• Zenodo https://zenodo.org/records/22650174first seen 2026-09-08 04:12:14 · last seen 2026-09-15 04:12:18