The OurEnergyLibrary aggregates and indexes publicly available fact sheets, journal articles, reports, studies, and other publications on U.S. energy topics. It is updated every week to include the most recent energy resources from academia, government, industry, non-profits, think tanks, and trade associations. Suggest a resource by emailing us at info@ourenergypolicy.org.
Resource Library
171 to 180 of 9786 item(s) were returned.
Author(s): Anupriya, Emma McCoy, and Daniel J. Graham
Publisher: Nature
Publication Date: September 1, 2025
Given the substantial contribution of transport operations to global energy demand, enhancing their energy efficiency is crucial for sustainable urban mobility. This study investigates whether intensifying the use of fixed transport networks, termed operational densification, reduces energy consumption. Grounded in economic theory, we develop a novel causal model to estimate the energy impacts of densification across two major commuting modes: urban rail transit (metro) and private car travel. Using a unique panel dataset of 27 metro operations worldwide, we find that a 10% increase in passenger-kilometres travelled on a fixed network reduces energy use per passenger-kilometre by 3.45%. These gains …
View Full Resource
Author(s): Ayodeji Okunlola, Matthew Davis, and Amit Kumar
Publisher: Nature
Publication Date: August 28, 2025
Electrolytic hydrogen can support the decarbonization of the power sector. Achieving cost-effective power-to-gas-to-power (PGP) integration through targeted emissions pricing can accelerate the adoption of electrolytic hydrogen in greenhouse gas-intensive power sectors. This study develops a framework for assessing the economic viability of electrolytic hydrogen-based PGP systems in fossil fuel-dependent grids, while considering the competing objectives of the electricity system operator, a risk-averse investor, and the government. Here we show that, given the risk-averse investor’s inherent pursuit of profit maximization, a break-even carbon abatement cost of at least 57 Canadian Dollars per tonne of CO₂ by 2030 from the government, with …
View Full Resource
Author(s): Julie Mulvaney Kemp, Dev Millstein, Will Gorman, Seongeun Jeong, and Ryan Wiser
Publisher: Nature
Publication Date: August 28, 2025
Electric transmission infrastructure plays a vital role during extreme weather and supply disruptions and can enable low-cost electricity systems. This paper contributes to a more complete understanding of the value and cost-effectiveness of transmission, as well as barriers to its development. By studying wholesale energy market prices in the United States between 2012 and 2022, we find that additional transfer capacity between regions would have been especially valuable, with a median value of $116 million per GW per year. This capacity would often have provided balanced benefits to each region. The market value of transmission was highly influenced by a …
View Full Resource
Author(s): Philip Sandwell, Benedict Winchester, Shivika Mittal, Christos N. Markides, Hamish Beath, and Jenny Nelson
Publisher: Nature
Publication Date: August 28, 2025
Despite recent improvements to electricity access in lower-income countries, reliability remains low for many. Local renewable electricity infrastructure supplementing the national grid offers a promising route to improved reliability for rural communities. However, improvements in the reliability of national grids create risks for investors including the possibility of “stranded” renewable assets. We use energy-system modelling to explore ways in which solar photovoltaic (PV)-based mini-grids could be interconnected with national grids. We explore the impact of reduced electricity demand to quantify the investment risks of losing customers. Our results indicate that national grid–connected mini-grids can reduce the unit electricity costs for …
View Full Resource
Author(s): Julie Mulvaney Kemp, Dev Millstein, Will Gorman, Seongeun Jeong, and Ryan Wiser
Publisher: Nature
Publication Date: August 28, 2025
Electric transmission infrastructure plays a vital role during extreme weather and supply disruptions and can enable low-cost electricity systems. This paper contributes to a more complete understanding of the value and cost-effectiveness of transmission, as well as barriers to its development. By studying wholesale energy market prices in the United States between 2012 and 2022, we find that additional transfer capacity between regions would have been especially valuable, with a median value of $116 million per GW per year. This capacity would often have provided balanced benefits to each region. The market value of transmission was highly influenced by a …
View Full Resource
Author(s): Nicholas Roy and Dallas Burtraw
Publisher: RFF
Publication Date: August 27, 2025
This issue brief considers an opportunity for state governments to respond to this challenge by enhancing electricity affordability for households and concurrently boosting environmental outcomes. Investments in renewable energy and energy efficiency would reduce electricity costs. With the loss of federal support for these investments, we explore the potential introduction of a price on carbon dioxide (CO2) emissions in the electricity sector at the state level, via a cap or limit on power sector emissions sources, and coupling that price with a policy to direct program revenues to reduce residential electricity rates (Meng and Prasad 2025).…
View Full Resource
Author(s): IEF
Publisher: IEF
Publication Date: August 20, 2025
Overview: Update with Data Through June 2025 Oil demand in JODI-reporting countries was up in June by 1.23 mb/d month-on-month (m/m) and by 638.1 kb/d year-on-year (y/y). The m/m growth was driven mainly by higher demand in the US (+1.28 mb/d), Canada (+263 kb/d), Italy (+261 kb/d), the UK (+179 kb/d) and South Korea (+153 kb/d). The y/y increase was also driven by higher crude oil demand from the US (1.36 mb/d), Canada (+228 kb/d), Italy (+183 kb/d), the UK and India (+118 kb/d), and Norway (+107 kb/d), partially offset by lower demand from Indonesia (-1.26 mb/d), and Germany (-208 …
View Full Resource
Author(s): Energy Sector Management Assistance Program (ESMAP)
Publisher: The World Bank and ESMAP
Publication Date: August 14, 2025
Since the publication of the previous (2022) RISE edition, progress toward universal electrification reversed course for the first time in 20 years. About 685 million people, most of them living in Sub-Saharan Africa, lacked access in 2022. While RISE electricity access scores climbed in many countries between 2021 and 2023, progress in fragile states stalled due to structural barriers and instability. Most countries with substantial unelectrified populations have high RISE scores, but this has not translated into significant electrification gains, because access requires more than sound policies. Expanding access requires capacity for implementation, together with efforts to address barriers to …
View Full Resource
Author(s): Nicolas Allien, Emmanuel Py, and James Knuckles
Publisher: Livewire , The World Bank, ESMAP
Publication Date: August 14, 2025
The bottom line. In spring 2024, the World Bank Group and the African Development Bank launched an ambitious effort to connect 300 million people in Africa with electricity access by 2030. The subsequent M300 Africa Energy Summit held in January in Dar es Salaam, Tanzania, was a landmark gathering focused on accelerating energy access across Africa. Renewable energy mini grids are expected to play a key role in this deployment. But for a scale-up commensurate with the need, governments—with support from donors—must create an enabling environment capable of attracting private investment and ensuring long-term sustainability.…
View Full Resource
Author(s): Huan Xie, Ihab Omar, Husam Rajab, Rishabh Chaturvedi, Abdullah Abed Hussein, Narinderjit Singh Sawaran Singh, Jaber M. Asiri, Nimesh Raj, Tannmay Gupta, and Ahmad Alizadeh
Publisher: Scientific Reports
Publication Date: August 12, 2025
This article delves into the eco-friendly operation of a smart microgrid, highlighting its ability to maintain voltage security through a flexible renewable hybrid system. The framework incorporates wind and bio-waste energy sources to produce electricity, while leveraging electric vehicles as mobile storage units and flexibility resources. The hybrid system is also capable of managing reactive power. The design focuses on two core Objectives: minimizing operational costs and bolstering voltage security in the grid. To ensure these goals are met, several critical constraints are addressed, including the AC optimal dispatch model, security limitations of the smart microgrid, management of hybrid resources …
View Full Resource
Disclaimer: OurEnergyPolicy.org makes no claim as to the accuracy or quality of Resources produced by third parties.