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Mitigating Curtailment and Carbon Emissions through Load Migration between Data Centers
Joule ( IF 39.8 ) Pub Date : 2020-08-25 , DOI: 10.1016/j.joule.2020.08.001
Jiajia Zheng , Andrew A. Chien , Sangwon Suh

As the share of variable renewable energy (VRE) grows in the electric grid, so does the risk of curtailment. While energy storage and hydrogen production have been proposed as solutions to the curtailment problem, they often pose technological and economic challenges. Here, we analyze the potential of data center load migration for mitigating curtailment and greenhouse gas (GHG) emissions. Using historical hourly electricity generation, curtailment, and typical data center server utilization data, we simulate the effect of migrating data center workloads from the fossil-fuel-heavy PJM to the renewable-heavy CAISO. The results show that load migration within the existing data center capacity during the curtailment hours in CAISO has the potential to reduce 113–239 KtCO2e per year of GHG emissions and absorb up to 62% of the total curtailment with negative abatement costs in 2019. Our study demonstrates the overlooked role that data centers can play for VRE integration and GHG emissions mitigation.



中文翻译:

通过数据中心之间的负载迁移来减少削减和碳排放

随着可变可再生能源(VRE)在电网中所占份额的增加,削减风险也在增加。虽然已经提出了储能和制氢作为减少能源问题的解决方案,但它们经常带来技术和经济挑战。在这里,我们分析了数据中心负载迁移在减轻限制和减少温室气体(GHG)排放方面的潜力。使用历史小时每小时发电量,缩减量和典型的数据中心服务器利用率数据,我们模拟了将数据中心工作负载从化石燃料密集型PJM迁移到可再生能源繁重的CAISO的效果。结果表明,在CAISO的缩减时间内,现有数据中心容量内的负载迁移有可能减少113–239 KtCO 2e每年的温室气体排放量,在2019年以减少的消减成本吸收多达62%的减排量。我们的研究表明,数据中心在VRE集成和减少温室气体排放方面可以发挥被忽视的作用。

更新日期:2020-10-15
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