Publications
Showing 45 results for Author: Rocio Uria Martinez
Jul, 2026
Journal
Oil price states and drivers: An analysis of the second-month spot-futures price differential
Oil remains a dominant component of global energy use, and its price, characterized by frequent changes and an ever-present potential for large swings, continues to be a focus of industry participants, policymakers and analysts attention. This study examines the behavior of future spot oil prices using a continuous-time hidden Markov model (HMM) and daily price data spanni…
Mar, 2026
Conference Paper
Calculating Critical Inertia of a Power System
The increasing integration of renewable energy sources in modern power systems has led to a decline in system inertia, raising concerns about frequency stability following large disturbances. Determining critical inertia is essential to prevent excessive frequency decline and ensure grid stability. This paper evaluates four different methods for calculating critical inerti…
Aug, 2025
Journal
Cost Analysis of Pathways for the U.S. Shipping Fleet to Comply with the IMO 2020 Rule
Since 2020, ocean-going vessels must comply with the International Maritime Organization (IMO) mandate to reduce the sulfur content of marine fuels (outside emission control areas) to no more than 0.5%. This paper analyzes the cost of different approaches for the U.S. fleet, which has special cost considerations because of the Jones Act, to comply with the regulation. We p…
Apr, 2025
Journal
Towards low-carbon low-energy concrete alternatives: Life cycle assessment of carbonated cementitious material-based precast panels
Cement is responsible for 22 % of all global CO2 emissions from industrial processes. Technological innovation for developing and deploying of alternative materials will be required to decarbonize the cement industry. Carbonated cementitious materials (CCMs) are building materials that rely on carbon mineralization for their strength. A process-based cradle-to-gate life cy…
Nov, 2023
ORNL Report
Meta-Analysis of the Oil Price Elasticity of the GDP for Policy Analysis: Documentation
Nov, 2023
Journal
Energy security role of biofuels in evolving liquid fuel markets
We explore the role of biofuels in mitigating the negative impacts of oil supply shocks on fuel markets under a range of oil price trajectories and biofuel blending mandate levels. Using a partial equilibrium model of US biofuels production and petroleum fuels trade, we discuss the adjustments in light‐duty vehicle fuel mix, fuel prices, and renewable identification number…
Nov, 2023
Conference Paper
Cost of Oil and Biomass Supply Shocks under Different Biofuel Supply Chain Configurations
This analysis estimates the cost of selected oil and biomass supply shocks for producers and consumers in the light-duty vehicle fuel market under various supply chain configurations using a mathematical programing model, BioTrans. The supply chain configurations differ by whether they include selected flexibility levers: multi-feedstock biorefineries; advanced biomass log…
Nov, 2023
Journal
United States trends in non-powered dam electrification
Over the past two decades, retrofitting existing non-powered dams for electricity generation has been the primary hydropower development activity in United States. A total of 58 existing non-powered dams are currently licensed to produce an estimated 3.7 TWh of annual energy output from 888 MW of cumulative installed capacity. In this article we provide a review of develop…
Nov, 2023
ORNL Report
Using Meta-Analysis to Estimate World Oil Demand Elasticity
Oil demand elasticities are important behavioral parameters for assessing the effectiveness of many energy policy proposals and the economic impact of oil market shocks. Most of the literature on petroleum demand computes elasticities for one particular petroleum product in a country or group of countries. There are fewer published values for world oil demand elasticity be…