From 28ad8c9eefeb4889ae595d93f29c6fc93cb522ec Mon Sep 17 00:00:00 2001
From: Kerem Ziya Akdemir <56842236+keremakdemir@users.noreply.github.com>
Date: Wed, 20 Nov 2024 11:25:12 -0500
Subject: [PATCH] Update README after publication

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 # akdemir-etal_2024_applied_energy
 
-**Investigating the Effects of Cooperation Level on Transmission Expansion Planning for Decarbonization**
+**Investigating the effects of cooperative transmission expansion planning on grid performance during heat waves with varying spatial scales**
 
 Kerem Ziya Akdemir<sup>1\*</sup>, Kendall Mongird<sup>1</sup>, Jordan D. Kern<sup>2</sup>, Konstantinos Oikonomou<sup>1</sup>, Nathalie Voisin<sup>1,3</sup>, Casey D. Burleyson<sup>1</sup>, Jennie S. Rice<sup>1</sup>, Mengqi Zhao<sup>1</sup>, Cameron Bracken<sup>1</sup>, and Chris Vernon<sup>1</sup>
 
@@ -13,13 +13,13 @@ Kerem Ziya Akdemir<sup>1\*</sup>, Kendall Mongird<sup>1</sup>, Jordan D. Kern<su
 \* corresponding author: keremziya.akdemir@pnnl.gov
 
 ## Abstract
-Electricity grids around the world are undergoing significant transformation due to decarbonization and sectoral electrification efforts. There is a significant need for new transmission capacity to connect renewable energy resources like solar and wind power, but institutional and economic challenges hinder the efficiency and speed of the new transmission investments. This study examines the potential impact of cooperation on transmission expansion planning using an advanced modeling chain to simulate power grid operations of the United States Western Interconnection in 2019 and 2059 under different levels of collaboration between transmission planning regions. Two historical heat waves in 2019 with varying spatial scope (one localized and one more widespread) are replayed under future climate change in 2059 to assess the transmission cooperation benefits during grid stress. The results show that cooperative transmission planning yields the best outcomes in terms of reducing wholesale electricity prices and minimizing energy outages both for the whole interconnection and individual transmission planning regions. Compared to individual case, cooperative transmission expansion planning reduces wholesale electricity prices by 64.3% and interconnection-wide total costs (transmission investments + grid operations) by 34.6% in 2059. It also helps decrease greenhouse gas emissions by reducing reliance on fossil fuel resources and increasing renewable energy utilization. However, the benefits of transmission cooperation diminish during the widespread heat wave when all regions face extreme electricity demand due to higher space cooling needs. Despite this, cooperative transmission planning remains advantageous, particularly for California Independent System Operator which has significant solar installations. This study suggests that cooperation in transmission planning is crucial for reducing costs and increasing reliability both during normal periods and extreme weather events. It highlights the importance of optimizing the strategic investments to mitigate challenges posed by wider-scale extreme weather events of the future.
+There is growing recognition of the advantages of interregional transmission capacity to decarbonize electricity grids. A less explored benefit is potential performance improvements during extreme weather events. This study examines the impacts of cooperative transmission expansion planning using an advanced modeling chain to simulate power grid operations of the United States Western Interconnection in 2019 and 2059 under different levels of collaboration between transmission planning regions. Two historical heat waves in 2019 with varying geographical coverage are replayed under future climate change in 2059 to assess the transmission cooperation benefits during grid stress. The results show that cooperative transmission planning yields the best outcomes in terms of reducing wholesale electricity prices and minimizing energy outages both for the whole interconnection and individual transmission planning regions. Compared to individual planning, cooperative planning reduces wholesale electricity prices by 64.3 % and interconnection-wide total costs (transmission investments + grid operations) by 34.6 % in 2059. It also helps decrease greenhouse gas emissions by increasing renewable energy utilization. However, the benefits of cooperation diminish during the widespread heat wave when all regions face extreme electricity demand due to higher space cooling needs. Despite this, cooperative transmission planning remains advantageous, particularly for California Independent System Operator with significant diurnal solar generation capacity. This study suggests that cooperation in transmission planning is crucial for reducing costs and increasing reliability both during normal periods and extreme weather events. It highlights the importance of optimizing the strategic investments to mitigate challenges posed by wider-scale extreme weather events of the future.
 
 ## Journal reference
-Akdemir, K. Z., Mongird, K., Kern, J. D., Oikonomou, K., Voisin, N., Burleyson, C. D., Rice, J. S., Zhao, M., Bracken, C., & Vernon, C. (2024). Investigating the Effects of Cooperation Level on Transmission Expansion Planning for Decarbonization. Applied Energy (in preparation)
+Akdemir, K. Z., Mongird, K., Kern, J. D., Oikonomou, K., Voisin, N., Burleyson, C. D., Rice, J. S., Zhao, M., Bracken, C., & Vernon, C. (2025). Investigating the effects of cooperative transmission expansion planning on grid performance during heat waves with varying spatial scales. Applied Energy, 378, 124825. https://doi.org/10.1016/j.apenergy.2024.124825
 
 ## Code reference
-Akdemir, K. Z., Mongird, K., Kern, J. D., Oikonomou, K., Voisin, N., Burleyson, C. D., Rice, J. S., Zhao, M., Bracken, C., & Vernon, C. (2024). Supporting code for Akdemir et al. 2024 - Applied Energy [Code]. Zenodo.
+Akdemir, K. Z., Mongird, K., Kern, J., Oikonomou, K., Voisin, N., Burleyson, C., Rice, J., Zhao, M., Bracken, C., & Vernon, C. R. (2024). Meta-repository for data and code associated with the Akdemir et al. 2024 submission to Applied Energy (Version 1.0.0) [Computer software]. Zenodo. https://doi.org/10.5281/ZENODO.12693667
 
 ## Data references