• Energy Research

Abstract: Energy poverty has become one of the major challenges faced by the world's energy system. However, there is no consensus on the measure of energy poverty. Several approaches have been proposed, among which the energy poverty line has been defined as the minimum quantity of energy required for basic life, particularly for cooking and heating. This paper estimates the relationship between energy expenditure and household income and identifies the energy poverty line based on the threshold above which the energy share becomes insensitive to household income using household survey data from rural Qinghai, China. Considering the ongoing energy transition and the negative impacts of biomass energy consumption for the environment and health, the study sets a scenario in which all bioenergy consumption is replaced with electricity. The findings show that 57% of rural households in rural Qinghai are energy poor. The phase of energy poverty in terms of basic energy access has passed, so increasing the share of efficient modern energy in household energy consumption requires more attention. Considering the existence of a population that is not income poor but is energy poor, a conventional policy design that primarily targets income-poor households may be inappropriate in this case.

Abstract The transition towards advanced residential energy sources is a pressing priority for many countries. Despite this, solid fuels remain the dominant form of cooking energy for rural households in developing countries. This study investigates the physical and mental health impacts of cooking energy choices by using endogenous switching models to address selection bias associated with cooking energy adoption and to distinguish the health impacts of different types of cooking energy. Using country-representative household survey data from rural China, our results indicate that adopting advanced forms of energy, not only enhances physical health in terms of reducing the rates of chronic diseases but also improves mental health. We further delve into the heterogenous impacts of advanced energy adoption across different groups and find that women, old adults, and economically disadvantaged groups are more likely to experience greater mental health benefits compared to their counterparts, while the opposite results are observed for the physical health. Additionally, we differentiate the health impacts by distinguishing between various energy types. This study provides insights for policy making aimed at improving public health and promoting health equality, contributing to efforts towards achieving sustainable development goals by prioritizing clean and efficient residential energy solutions.

Abstract Indicators are an essential component of national strategies and policies relating to energy transition and regulation. Both China and Germany are expected to take the lead on the global effort to achieve clean energy and a reduction in GHG emissions. A better understanding of the institutional environment in both countries will guide those who follow them. By using text analysis, we have examined the main energy indicators used in official strategies and policies and divided them into ten categories. We have found that both countries value renewable energy as a solution to energy transition, although in China “non-fossil energy” appears more often in political documents, and “nuclear energy” is valued as an important source. In Germany, short-, medium- and long-term indicators are clearly stated and are consistent over time and between documents. Meanwhile, in China the indicators and targets are updated every five years, which fits with the rapid domestic development of the country but fails to provide a clear long-term vision. We argue that the roots of such differences can be found in governance systems, the global energy market, and national political and economic priorities, and that international cooperation is needed to standardize energy indicators so that the global energy transition can be navigated more effectively.

Food systems are essential for the achievement of the United Nations Sustainable Development Goals in China. Here, using an integrated assessment modelling framework that considers country-specific pathways and covers 18 indicators, we find that most social and environmental targets for the Chinese food system under current trends are not aligned with the United Nations Agenda 2030. We further quantify the impacts of multiple measures, revealing potential trade-offs in pursuing strategies aimed at public health, environmental sustainability and livelihood improvement in isolation. Among the individual packages of measures, a shift towards healthy diets exhibits the lowest level of trade-offs, leading to improvements in nutrition, health, environment and livelihoods. In contrast, focusing efforts on climate change mitigation and ecological conservation, or promoting faster socioeconomic development alone, have trade-offs between social and environmental outcomes. These trade-offs could be minimized by bundling all three aspects of measures.