Spatially resolved land and grid model of carbon neutrality in China

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(10)

Published: Feb. 26, 2024

China has committed to achieve net carbon neutrality by 2060 combat global climate change, which will require unprecedented deployment of negative emissions technologies, renewable energies (RE), and complementary infrastructure. At terawatt-scale deployment, land use limitations interact with operational economic features power systems. To address this, we developed a spatially resolved resource assessment systems planning optimization that models full year system operations, sub-provincial RE siting criteria, transmission connections. Our modeling results show wind solar must be expanded 2,000 3,900 GW each, one plausible pathway leading 300 GW/yr combined annual additions in 2046 2060, three-fold increase from today. Over 80% 55% is constructed within 100 km major load centers when accounting for current policies regarding use. Large-scale low-carbon balance key trade-offs use, quality, grid integration, costs. Under more restrictive policies, at least 740 distributed would become economically feasible regions high demand, where utility-scale limited competition agricultural land. Effective policy formulation are necessary China's goals.

Language: Английский

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Global spatiotemporal optimization of photovoltaic and wind power to achieve the Paris Agreement targets

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 3, 2025

Limiting global warming below 1.5 or 2 °C calls for achieving energy systems with net-zero carbon dioxide (CO2) emissions likely by 2040 2070, but the pledged actions under current policies cannot meet these targets. Few studies have optimized deployment of photovoltaic and wind power. Here we present a strategy involving construction 22,821 photovoltaic, onshore-wind, offshore-wind plants in 192 countries worldwide to minimize levelized cost electricity. We identify large potential reduction combining coordination storage power transmission, dynamics learning, trade minerals, development supply chains. Our optimization increases capacity power, accompanied average abatement from US Dollars ($) 140 (baseline) $33 per tonne CO2. study provides roadmap CO2 emissions, emphasizing physical, financial, socioeconomic challenges forward.

Language: Английский

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Retrofitted CCS technologies enhance economy, security, and equity in achieving carbon zero in power sector

Applied Energy, Journal Year: 2024, Volume and Issue: 378, P. 124803 - 124803

Published: Nov. 5, 2024

Language: Английский

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Benchmarking China’s power system transition

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

UNEP, in its latest Emissions Gap Report, highlights the significant distance between countries’ pledges and what is needed to stay on a 1.5° C pathway, calls all nations raise ambition of their nationally determined contributions, updates which are due by February 2025. As world’s largest carbon emitter, China’s commitment critical success any global compact addressing climate change. Power sector accounts for over 40% emission, thus key area both progress concern. We argue that share non-fossil electricity generation more appropriate robust benchmark measuring power system transition, as it would be minimally influenced uncertainty demand growth. By contrast, capacity targets such tripling renewable installations 2030 less useful, especially given record growth solar wind buildout. Our analysis shows China could reach around 80% 2035 across variety demand, technology, constrain scenarios.

Language: Английский

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High-resolution gridded dataset of China’s offshore wind potential and costs under technical change

Scientific Data, Journal Year: 2025, Volume and Issue: 12(1)

Published: Jan. 14, 2025

Assessing the dynamics of offshore wind potential and costs is essential for low-carbon energy policy decision-making modeling, but no open-source, spatial explicit technologically detailed dataset available. This study addresses this gap by employing a consistent assessment framework that integrates GIS analysis, reanalysis model, component-based cost model scenario analysis. It identifies suitable space deployment considering 12 technical constraints, estimates hourly output curves, capacity factors, technology components across 5058 grid points with 10 km resolution from 2020 to 2035 under three change scenarios. The has been validated through comparisons existing projects datasets, stored in two formats (GeoTIFF NetCDF4). offers extensive use as an input climate system research.

Language: Английский

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A Land Spatial Optimization Approach for the Reutilization of Abandoned Mine Land: A Case Study of Ningbo, China

Land, Journal Year: 2025, Volume and Issue: 14(2), P. 326 - 326

Published: Feb. 6, 2025

As a mining country, China faces enormous challenges in the context of global commitment to achieve carbon neutrality. In order this goal, Chinese government is actively promoting green and low-carbon transformation energy system. Consequently, an increasing number mines with poor production capacity depleted resources are being closed down or eliminated, leading large quantity stranded land that now idle. However, process rapid economic development, facing serious problems, such as shortage use conflicts. Abandoned (AML), kind reserve resource, has important regulating role solving dilemma resource tension faced by national spatial planning. realize rational planning utilization AML, study proposes high-precision AML model simulates multiple policy scenarios, using Ningbo City example. The results show great ecological potential; development scenario (EDS) enhanced benefits mine region 396%, protection (EPS) 74.61%, when compared baseline (BAU). overall level optimization follows: EDS > EPS BAU. addition, optimal all three scenarios significantly quality region, enhancement effect was BAU EDS. Therefore, free supporting for territory. Furthermore, it significance scientifically reasonably guide according future efficient improve environment.

Language: Английский

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Simulation on a novel liquid hydrogen based energy storage system for meeting electricity demand via photovoltaic sources

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 109, P. 506 - 519

Published: Feb. 12, 2025

Language: Английский

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Optimal pathways toward a carbon-neutral power system considering low-carbon technologies in the Yangtze River Delta region

Journal of Management Science and Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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A high spatial resolution suitability layers to support feasible power plant site selection in China

Scientific Data, Journal Year: 2025, Volume and Issue: 12(1)

Published: April 11, 2025

Language: Английский

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Context-dependent carbon mitigation potential using long-term onshore wind turbine datasets in China

Resources Conservation and Recycling, Journal Year: 2025, Volume and Issue: 220, P. 108350 - 108350

Published: May 5, 2025

Language: Английский

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