Ramteen Sioshansi
realramteen.bsky.social
Ramteen Sioshansi
@realramteen.bsky.social
A professor of mathy things at Carnegie Mellon University and an adjunct professor at The Ohio State University.
Shocked to see Travis Fisher's name in this.

www.nytimes.com/2026/01/30/c...
A Secret Panel to Question Climate Science Was Unlawful, Judge Rules
www.nytimes.com
February 9, 2026 at 2:26 AM
A new CS/RER paper addresses a topic that is near and dear to my heart. Namely, how to capture the value of energy that crosses jurisdictional boundaries between generation, transmission, distribution, and other functions.

doi.org/10.1007/s405...
Change Agent: Energy Storage as a Driver of Regulatory Evolution - Current Sustainable/Renewable Energy Reports
Purpose of Review Dividing the electric grid into the functions of generation, transmission, anddistribution enabled the drawing of jurisdictional lines and the application of the U.S.Constitution’s f...
doi.org
February 3, 2026 at 10:00 PM
I enjoyed talking to Robert Ferris for this @cnbc.com piece about electric-vehicle manufacturers branching into the stationary energy-storage business.
January 27, 2026 at 6:54 PM
Federal power marketing administrations are a unique institutional quirk of US electricity supply. Using BPA as an example, this CS/RER paper provides very interesting insights into how these agencies are structured and have evolved.

doi.org/10.1007/s405...
Sustainable Energy Transitions and Competing Demands: Lessons from the Bonneville Power Administration - Current Sustainable/Renewable Energy Reports
Purpose of Review The Bonneville Power Administration (BPA) provides a unique window into how long-standing public agencies adapt to rapidly evolving governance challenges in the energy transition. Th...
doi.org
January 27, 2026 at 12:13 AM
A new CS/RER paper discusses incorporating reserve-scarcity pricing into distribution-level LMPs. It is a logical extension of LMP, which reflects how transmission and distribution congestion may prevent delivering energy to demand. It's open-access, so give it a read.

doi.org/10.1007/s405...
Client Challenge
doi.org
January 12, 2026 at 6:32 PM
Just made the ScholarGPS cut in the energy-storage category for this year.

scholargps.com/scholars/192...
scholargps.com
December 23, 2025 at 3:49 PM
Hot off the presses, this paper examines how energy-system models can inform technology development. The focus, which is driven by the @dfg.de project that supported the work, is thermal energy storage.

www.sciencedirect.com/science/arti...
How can energy-system models inform technology development? Insights for emerging energy-storage technologies
Energy-system models (ESMs) are used often to support policymakers, system operators, or investors, but much less for offering guidance to technology …
www.sciencedirect.com
December 18, 2025 at 7:07 PM
Decarbonizing construction is a challenge because of carbon that is embedded in cement. This CS/RER surveys examines whether a book-and-claim mechanism (which is akin to electricity-sector RECs) can encourage using lower-carbon cement technologies in construction projects.

doi.org/10.1007/s405...
Decarbonizing Construction Through Book & Claim: Policy, Standards, and Verification for Low-Carbon Cement - Current Sustainable/Renewable Energy Reports
Purpose of Review This review examines the emerging Book & Claim mechanism as a potential market and accounting framework to accelerate decarbonization in the cement and concrete industries. The paper...
doi.org
December 16, 2025 at 6:08 PM
Ever wonder why electricity-transmission and -distribution aren't more integrated? It happens that doing so is no easy task, as Leigh Tesfatsion notes in this open-access CS/RER survey.

doi.org/10.1007/s405...
Design Strategies for Integrated Transmission and Distribution Systems: An Expanding Toolkit - Current Sustainable/Renewable Energy Reports
Purpose of Review Integrated Transmission and Distribution (ITD) systems for electric power are complex systems encompassing strongly coupled physical, economic, and legal processes. This review ident...
doi.org
December 11, 2025 at 10:53 PM
Adding to a great set of papers, this is a new CS/RER survey of the fragmentation of CO2-removal research. EU, US, and China are doing much of the work with some niche collaboration. Bridging these divides could accelerate technology development.

doi.org/10.1007/s405...
Global Collaboration in Carbon Dioxide Removal: Navigating a Fragmented Landscape - Current Sustainable/Renewable Energy Reports
Purpose of Review: As carbon dioxide removal (CDR) becomes an increasingly important component of net-zero strategies, understanding how scientific collaboration is structured globally is essential. T...
doi.org
December 3, 2025 at 3:06 PM
I had the pleasure of giving a seminar recently at DTU Wind (at the invitation of @jalalkazempour.bsky.social). The presentation is of recent work with @woodyszhu.bsky.social and Ryan Chen, examining and optimizing resilience-related actions that utilities can take.
November 4, 2025 at 11:16 PM
Congratulations, again, to Ryan and @woodyszhu.bsky.social.
November 4, 2025 at 11:11 PM
New CS/RER paper surveys how carbon dioxide removal is and can be integrated into existing and emerging carbon markets. There's a lot of interesting material, but one important finding is that (as with offsets) need to be diligent about what actually is removing carbon.

doi.org/10.1007/s405...
Market Mechanisms for Carbon Dioxide Removals: An Overview - Current Sustainable/Renewable Energy Reports
Purpose of review Carbon Dioxide Removal (CDR) is deemed critical to achieve the climate targets set by the Paris Agreement, underscoring the need for robust and scalable CDR markets. This review expl...
doi.org
November 1, 2025 at 8:46 PM
New Paper Alert!

I'm happy to have been part of this effort to survey the current state of EVs--domestically and internationally.

dx.doi.org/10.1038/s443...
Trends and 2025 insights on the rise of electric vehicles in the USA - Nature Reviews Clean Technology
Electric vehicles are increasingly adopted in the USA, with concurrent expansion of charging infrastructure and electricity demand. This Review details these trends and discusses their drivers and bro...
dx.doi.org
October 16, 2025 at 3:48 PM
Hot off the presses, this new CS/RER paper by @ninahebel.bsky.social et al. surveys approaches to weigh costs and benefits of resilience-related investments. Costs are straightforward but benefits (e.g., avoided blackouts) are more dicey.

doi.org/10.1007/s405...
Cost-Benefit Analysis of Electricity Resilience Projects: State of the Art and Gap Analysis - Current Sustainable/Renewable Energy Reports
Purpose of Review Utilities and regulators must weigh the benefits of electricity resilience projects against their costs, which would be passed on to customers. Cost-benefit analysis (CBA) is an appr...
doi.org
October 15, 2025 at 9:34 PM
This recent CS/RER paper surveys the use of machine learning for electricity-system planning. The paper suggests that these techniques have potential, but that challenges persist in their application and interpretability.

doi.org/10.1007/s405...
AI-Driven Power System Planning Under the Low-Carbon Transition - Current Sustainable/Renewable Energy Reports
Purpose of Review This review aims to systematically synthesize recent developments in artificial intelligence (AI)-driven power system planning under the low-carbon transition. It focuses on how AI methodologies address increasing system complexity and uncertainty by improving scenario generation, model optimization, and decision support transparency. Recent Findings Recent advances demonstrate that deep learning, reinforcement learning, and generative models significantly enhance input accuracy and optimization efficiency for large-scale, non-convex planning problems. Explainable AI techniques, such as SHAP and LIME, have been increasingly integrated to improve the interpretability and credibility of planning outcomes. However, challenges persist in ensuring physical consistency in scenario generation, modelling realistic multi-agent interactions, and developing trustworthy AI frameworks. Summary AI technologies are reshaping power system planning by offering intelligent, robust, and sustainable solutions aligned with high renewable penetration and evolving market dynamics. Future research must address key gaps in physical feasibility, behavioural realism, and explainability to fully leverage AI’s potential for supporting low-carbon power system transitions.
doi.org
October 8, 2025 at 1:46 PM
This (open-access) paper officially is in-press now. Congratulations to the stellar co-author team.

doi.org/10.1007/s405...

Did I mention that it's open-access and you can give it a look without having to pay for it?
September 30, 2025 at 10:31 PM
Congratulations, Jaih, for successful defense of your PhD thesis. A few remaining edits to the dissertation itself and we’ll have Dr. Hunter-Hill. Thank you to @destenie.bsky.social and the other members of his thesis committee for the invaluable input and guidance to Jaih.
September 17, 2025 at 9:02 PM
Congratulations to Ryan Chen for winning this year's INFORMS ENRE Student Best Paper Award. Ryan is a PhD student at @cmuheinzcollege.bsky.social, whom I co-supervise with @woodyszhu.bsky.social. There is a serendipitous back story to this paper.
September 15, 2025 at 5:44 PM
I'm happy to count myself as a co-author of this paper, which came from workshops held during last summer at Institute for Mathematical and Statistical Innovation.

doi.org/10.1007/s405...
Ten challenges for mathematical modeling of the green-energy transition - Current Sustainable/Renewable Energy Reports
Purpose of Review The global transition from fossil fuels to renewable energy creates a wide array of challenges that call for new models and analytical methods. This review identifies ten mathematica...
doi.org
September 11, 2025 at 9:31 PM
I'm honored to have been named a member of the Grand Solutions committee for Green Research, Technology and Innovation of Innovation Fund Denmark. I look forward to helping Denmark undertake vital and valuable green-technology research.

innovationsfonden.dk/en/grand-sol...
Grand Solutions committee for Green Research, Technology and Innovation | Innovationsfonden
innovationsfonden.dk
September 10, 2025 at 9:48 PM
Hot off the presses! This book chapter (co-authored with a former MS student) examines the resource-adequacy challenge of deeply decarbonized electricity systems. Keeping the lights on 24/7 is THE roadblock to getting the final 10-15% of carbon out of electricity.

dx.doi.org/10.1007/978-...
Comparing Concentrating-Solar-Power and Photovoltaic-Solar Plants as Extended-Duration Peaking Resources in Electricity Systems
This chapter compares the performance of two solar electricity-generation technologies with complementary energy-storage technologies—concentrating solar power (CSP) with thermal energy storage ...
dx.doi.org
September 6, 2025 at 3:34 PM
Proud (unofficial) adviser moment: this open-access paper, which is co-authored by MS student Lukas Pauschert, who visited me from @rwth.bsky.social, appeared in CS/RER recently. The paper surveys market-based approaches to procure inertia for electricity systems.

dx.doi.org/10.1007/s405...
Market Designs for Inertia Remuneration in Electricity Systems - Current Sustainable/Renewable Energy Reports
Purpose of Review The share of asynchronous inverter-based resources is increasing in many electricity systems, displacing synchronous generators. This leads to a decreasing level of system inertia, w...
dx.doi.org
September 5, 2025 at 10:24 PM
Today is one of those days that I stumbled upon a paper that covers an interesting and innovative idea--non-firm grid-connection agreements. There is hype about the grid being antiquated, due to distributed and behind-the-meter resources.

doi.org/10.1007/s405...
Non-Firm Grid Connections: A Review of Access Types, Mechanisms, and Regulatory Frameworks - Current Sustainable/Renewable Energy Reports
Purpose of Review Non-firm (flexible) grid connection agreements are emerging as a fast, lower-cost alternative to traditional firm access for integrating renewable and distributed energy resources (D...
doi.org
August 28, 2025 at 6:20 PM
This article gives a concise and up-to-date survey of electricity-system resilience. It covers topics ranging from definitions, metrics, and planning and reactive strategies that can enhance resilience. It's open-access and available to read free-of-charge.

doi.org/10.1007/s405...
Resilience-Driven Planning and Real-Time Control Strategies: Challenges and Solutions - Current Sustainable/Renewable Energy Reports
This paper reviews the existing definitions of grid resilience and its metrics at distribution and transmission levels, while investigating resilience requirements and assessment methods. The paper al...
doi.org
August 23, 2025 at 10:00 PM