Featured
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Article
| Open Access
A cross-scale framework for evaluating flexibility values of battery and fuel cell electric vehicles
Electrified transportation exhibits great potential to provide flexibility. This article analyzed and compared the flexibility values of battery electric vehicles and fuel cell electric vehicles for planning and operating interdependent electricity and hydrogen supply chains.
- Ruixue Liu
- , Guannan He
- & Benben Jiang
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Article
| Open Access
A resilient battery electric bus transit system configuration
A resilient battery electric bus transit system design and configuration is proposed. The model is robust against simultaneous charging disruptions without interrupting daily operation. Indeed, additional marginal cost is required, yet it prevents significant service reductions.
- Ahmed Foda
- , Moataz Mohamed
- & Ehab El-Saadany
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Article
| Open Access
Deploying green hydrogen to decarbonize China’s coal chemical sector
The coal chemical sector uses coal to produce chemicals and emits substantial greenhouse gases, which are hard to abate by electrification alone. Deploying green H2 for China’s coal chemical plants can reduce ~50% of emissions at a low cost.
- Yang Guo
- , Liqun Peng
- & Denise L. Mauzerall
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Article
| Open Access
Global land and water limits to electrolytic hydrogen production using wind and solar resources
This study composes a country-specific analysis of land and water requirements for electrolytic hydrogen production, revealing nations constrained in achieving self-sufficiency in hydrogen supply and nations who can become hydrogen exporters.
- Davide Tonelli
- , Lorenzo Rosa
- & Francesco Contino
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Article
| Open Access
Continuous estimation of power system inertia using convolutional neural networks
The increase of intermittent energy sources and renewable energy penetration generally results in reduced overall inertia, making power systems susceptible to disturbances. Here, authors develop an AI-based method to estimate inertia in real-time and test its performance on a heterogeneous power network.
- Daniele Linaro
- , Federico Bizzarri
- & Angelo M. Brambilla
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Article
| Open Access
Carbon reduction technology pathways for existing buildings in eight cities
Here, the authors perform analysis of technology pathways for existing buildings using urban building energy models developed with cities, showing that shallow and deep retrofits along with onsite photovoltaic and grid decarbonization can help achieve carbon reduction targets.
- Yu Qian Ang
- , Zachary Michael Berzolla
- & Christoph F. Reinhart
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Article
| Open Access
Plant conversions and abatement technologies cannot prevent stranding of power plant assets in 2 °C scenarios
Many existing and in-the-pipeline fossil-fuel power plants will have to be decommissioned or underused to avoid climate change beyond 2 °C, even under optimistic technology assumptions and after accounting for emission-reducing conversions.
- Yangsiyu Lu
- , Francois Cohen
- & Alexander Pfeiffer
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Article
| Open Access
Under-reporting of greenhouse gas emissions in U.S. cities
Many cities in the US self-report greenhouse gas emissions. Here, the authors find that US cities under-report their own greenhouse gas emissions, on average, by 18.3% because city inventories omit some fuels and source types and estimate transportation emissions differently.
- Kevin Robert Gurney
- , Jianming Liang
- & Thomas Lauvaux
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Article
| Open Access
Managing energy infrastructure to decarbonize industrial parks in China
The contributions of industrial parks towards addressing climate change remains unclear. Here, the authors studied the energy infrastructure of 1604 industrial parks in China and found that by decarbonizing energy infrastructure stocks in the industrial parks, the GHG mitigation potential will achieve 8%~16% relative to the GHG emissions in the baseline scenario with positive economic benefits, water savings and air pollutant emission reductions.
- Yang Guo
- , Jinping Tian
- & Lyujun Chen
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Article
| Open Access
Global resource potential of seasonal pumped hydropower storage for energy and water storage
The potential of seasonal pumped hydropower storage (SPHS) plant to fulfil future energy storage requirements is vast in mountainous regions. Here the authors show that SPHS costs vary from 0.007 to 0.2 US$ m−3 of water stored, 1.8 to 50 US$ MWh−1 of energy stored and 0.37 to 0.6 US$ GW−1 of installed power generation capacity.
- Julian D. Hunt
- , Edward Byers
- & Keywan Riahi
On the potential of vehicle-to-grid and second-life batteries to provide energy and material security