Sector coupling leading to low-carbon production of power and chemicals in China

Abstract

The global surface temperature has increased by about 1 °C relative to 1850-1900 period by the end of the 2010s, leaving limited safe operating space and thus a more stringent...

Greenhouse Gas Reduction Potential and Economics of Green Hydrogen via Water Electrolysis: A Systematic Review of Value-Chain-Wide Decarbonization

“…Sectoral coupling and synergistic effects are reflected in the supply of the electricity sector for renewable energy penetration at the source end of green hydrogen, the decarbonization of the green hydrogen end-use sector, and the synergistic decarbonization effects of multisectoral coupling at the supply and demand ends. Electricity-hydrogen sector coupling can accelerate technological learning, reduce the capital cost of solar PV by up to 4%, increase renewable energy penetration in primary power generation by nearly 5%, and reduce electricity curtailment by less than 5% by 2060 [196]. In assessing the role of green hydrogen in future energy transition scenarios, there is a trend for energy modelers and system planners to consider in more detail the unique flexibility characteristics of the HSC.…”

Assessing Transition Pathways of Hydrogen Production in China with a Probabilistic Framework

“…Through a detailed literature review (Table S1 summarizes the current state of relevant studies), ,,,,− we found that only a few studies , have employed probabilistic frameworks, typically based on simplistic methods such as technology diffusion models. However, considering that the aforementioned methods fail to provide detailed technical characterizations and strategies for infrastructure investment and operation, energy system models remain the mainstream method in this domain .…”

“…Scientific planning increases requirements for understanding the mechanism of technology selection (e.g., what are the reasons behind the optimal combinations between technologies), which, in turn, requires higher granularity in technology modeling processes. However, the technology granularity of most current research ,− is still relatively rough (only a few studies , differentiated between types of electrolyzers and the energy sources powering them), which makes it difficult to reveal the technology selection mechanism and support the pivotal technologies precisely …”