Jacques de Chalendar

• PhD Student at Stanford University

Renewable electricity generation will need to be rapidly scaled to address climate change and other environmental challenges. Doing so effectively will require an understanding of resource availability. We review estimates for renewable electricity of the global technical potential, defined as the amount of electricity that could be produced with c...

Building energy flexibility has been increasingly demonstrated as a cost-effective solution to respond to the needs of energy networks, including electric grids and district cooling and heating systems, improving the integration of intermittent renewable energy sources. Adjusting zonal temperature set-points is one of the most promising measures to...

Buildings represent over half of global electricity demand. Cooling buildings already accounts for over 9% of global electricity demand and is expected to grow rapidly due to climate-change induced hot-spells and increasing prosperity in developing economies. In the US, commercial buildings represent 35% of nationwide electricity consumption. Incre...

The electric grid is evolving rapidly in response to climate change. As renewables are incorporated, more interconnection of the grid is expected. Exposure to fine particulate matter (PM2.5) from fossil-fuel generation causes adverse health impacts, including thousands of premature deaths each year in the United States. It is well understood that P...

To encourage and guide decarbonization efforts, better tools are needed to monitor real-time CO2 and criteria air pollutant emissions from electricity consumption, production, imports, and exports. Using real-time data from the electricity system is especially challenging for quantitative applications requiring high quality and physically consisten...

Weather forecast information will very likely find increasing application in the control of future energy systems. In this paper, we introduce an augmented state space model formulation with linear dynamics, within which one can incorporate forecast information that is dynamically revealed alongside the evolution of the underlying state variable. W...

To encourage and guide decarbonization efforts, better tools are needed to monitor the emissions embodied in electricity consumption, production, imports, and exports. Using electric system operating data of varying quality is especially challenging for applications that require these data to be physically consistent, where time-intensive, manual d...

Understanding electricity consumption and production patterns is a necessary first step toward reducing the health and climate impacts of associated emissions. In this work, the economic input–output model is adapted to track emissions flows through electric grids and quantify the pollution embodied in electricity production, exchanges, and, ultima...

Pore-scale modelling of Ostwald ripening – CORRIGENDUM - Volume 866 - Jacques A. de Chalendar, Charlotte Garing, Sally M. Benson

Decarbonization of electricity generation together with electrification of energy-and-carbon-intensive services such as heating and cooling is needed to address ambitious climate goals. Here we show that city-scale electrification of heat with large-scale thermal storage also cost-effectively unlocks significant additional operational benefits for...

• Download : Download high-res image (133KB) • Download : Download full-size image Jacques A. de Chalendar is a doctoral candidate in the Energy Resources Engineering department at Stanford University and a State Grid Graduate Student Fellow through Stanford’s Bits and Watts initiative. His PhD research focuses on applying state-of-the-art computat...

In a saturated solution with dispersed clusters of a second phase, the mechanism by which the larger clusters grow at the expense of the smaller ones is called Ostwald ripening. Although the mechanism is well understood in situations where multiple clusters of gas exist in a liquid solution, evolution is much more complicated to predict when the tw...

Residually trapped CO2 is often assumed to be stable when simulating its long-term fate in geological storage reservoirs. Ostwald ripening is a mechanism that could potentially cause remobilization. We compare the case of bubbles of gas in a free liquid to that of a solid porous matrix. Using a new continuous pore network model, we gain insights on...

The large-scale penetration of renewable energy is a challenge for grid operators both at the transmission and distribution levels. Demand-side management has been gaining traction for offering new ways of controlling the balance between supply and demand of electricity that is so critical to reliable grid operations. Key questions remain as to the...

A multi-scale synchrotron-based X-ray microtomographic dataset of residually trapped air after gravity-driven brine imbibition was acquired for three samples with differing pore topologies and morphologies; image volumes were reconstructed with voxel sizes from 4.44 µm down to 0.64 µm. Capillary pressure distributions among the population of trappe...