Browsing by Department "University of California Santa Cruz"
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Item Correction(2017-12-01) Farhan, Alan; Petersen, Charlotte; Dhuey, Scott; Anghinolfi, Luca; Qin, QiHang; Saccone, Michael; Velten, Sven; Gliga, Sebastian; Mellado, Paula; Alava, Mikko; Scholl, Andreas; van Dijken, Sebastiaan; Lawrence Berkeley National Laboratory; Complex Systems and Materials; University of Genoa; Nanomagnetism and Spintronics; University of California Santa Cruz; University of Glasgow; Universidad Adolfo Ibáñez; Department of Applied PhysicsThe original version of this article contained an error in the legend to Figure 4. The yellow scale bar should have been defined as '∼600 nm', not '∼600 μm'. This has now been corrected in both the PDF and HTML versions of the article.Item Experimental Food Design for Sustainable Food Futures at the CreaTures Festival Exhibition(2022-06-30) Dolejšová, Markéta; Wilde, Danielle; Altarriba Bertran, Ferran; Davis, Hilary; van Gaalen, Sjef; Department of Design; University of Southern Denmark; University of California Santa Cruz; Swinburne University of Technology; Department of DesignCreative practices – such as writing, art, design and theatre, through to participatory community development and storytelling – have the power to change the way we think and act when it comes to the environment. The CreaTures Festival in Seville, Spain, will explore the potential and power of creative practices to drive sustainable futures through an exhibition and workshops, guest speakers and conference sessions. A part of the exhibition is Experimental Food Design for Sustainable Futures.Item Flexible supply meets flexible demand: prosumer impact on strategic hydro operations(SPRINGER, 2023-05-09) Hassanzadeh Moghimi, Farzad; Chen, Yihsu; Siddiqui, Afzal; Stockholm University; University of California Santa Cruz; Department of Mathematics and Systems AnalysisAmbitious climate packages promote the integration of variable renewable energy (VRE) and electrification of the economy. For the power sector, such a transformation means the emergence of so-called prosumers, i.e., agents that both consume and produce electricity. Due to their inflexible VRE output and flexible demand, prosumers will potentially add endogenous net sales with seasonal patterns to the power system. With its vast hydro reservoirs and ample transmission capacity, the Nordic region is seemingly well positioned to cope with such intermittent VRE output. However, the increased requirement for flexibility may be leveraged by incumbent producers to manipulate prices. Via a Nash-Cournot model with a representation of the Nordic region’s spatio-temporal features and reservoir volumes, we examine how hydro producers’ ability to manipulate electricity prices through temporal arbitrage is affected by (i) VRE-enabled prosumers and (ii) the latter plus a high CO2 price. We find that hydro reservoirs could exploit prosumers’ patterns of net sales to conduct temporal arbitrage more effectively, viz., by targeting periods in which prosumers are net buyers (net sellers) to withhold (to “dump”) water. Meanwhile, a higher CO2 price would further enhance hydro reservoirs’ market power because flexible price-taking thermal plants would be unable to ramp up production in order to counter such producers’ strategy to target VRE’s intermittency. Hence, in spite of a flexible demand side to complement additional intermittent VRE output, strategic hydro producers may still exacerbate price manipulation in a future power sector via more tailored exercise of market power.Item Regulatory jurisdiction and policy coordination(TAYLOR & FRANCIS, 2022-03-04) Tanaka, Makoto; Chen, Yihsu; Siddiqui, Afzal S.; National Graduate Institute for Policy Studies; University of California Santa Cruz; Department of Mathematics and Systems AnalysisThis study discusses important aspects of policy modeling based on a leader-follower game of policymakers. We specifically investigate non-cooperation between policymakers and the jurisdictional scope of regulation via bi-level programming. Performance-based environmental policy under the Clean Power Plan in the United States is chosen for our analysis. We argue that the cooperation of policymakers is welfare enhancing. Somewhat counterintuitively, full coordination among policymakers renders performance-based environmental policy redundant. We also find that distinct state-by-state regulation yields higher social welfare than broader regional regulation. This is because power producers can participate in a single power market even under state-by-state environmental regulation and arbitrage away the CO2 price differences by adjusting their generation across states. Numerical examples implemented for a stylized test network illustrate the theoretical findings.