Energy

51 Items

rendering of Carbon Engineering’s air capture design

Courtesy of Carbon Engineering

Journal Article - Joule

A Process for Capturing CO2 from the Atmosphere

    Authors:
  • Geoffrey Holmes
  • David St. Angelo
  • Kenton Heidel
| 2018

The authors describe a process for capturing CO2 from the atmosphere in an industrial plant. The design captures ∼1 Mt-CO2/year in a continuous process using an aqueous KOH sorbent coupled to a calcium caustic recovery loop. They describe the design rationale, summarize performance of the major unit operations, and provide a capital cost breakdown developed with an independent consulting engineering firm. They report results from a pilot plant that provides data on performance of the major unit operations.

A Chinese power plant.

Wikimedia CC/Tobixen

Journal Article - Journal of Cleaner Production

Changing Carbon Content of Chinese Coal and Implications for Emissions of CO2

| September 2018

The changing carbon content of coal consumed in China between 2002 and 2012 is quantified using information from the power sector. The carbon content decreased by 7.7% over this interval, the decrease particularly pronounced between 2007 and 2009. Inferences with respect to the changing carbon content of coal and the oxidation rate for its consumption, combined with the recent information on coal use in China, are employed to evaluate the trend in emissions of CO2. Emissions are estimated to have increased by 158% between 2002 and 2012, from 3.9 Gt y-1 to 9.2 Gt y-1.

solar panels are seen near the power grid in northwestern China

AP/Ng Han Guan, File

Journal Article - Environmental Research Letters

Climate, Air Quality and Human Health Benefits of Various Solar Photovoltaic Deployment Scenarios in China in 2030

    Authors:
  • Junnan Yang
  • Xiaoyuan Li
  • Fabian Wagner
  • Denise L. Mauzerall
| 2018

Solar photovoltaic (PV) electricity generation can greatly reduce both air pollutant and greenhouse gas emissions compared to fossil fuel electricity generation. The Chinese government plans to greatly scale up solar PV installation between now and 2030. However, different PV development pathways will influence the range of air quality and climate benefits. Benefits depend on how much electricity generated from PV is integrated into power grids and the type of power plant displaced. Using a coal-intensive power sector projection as the base case, the authors estimate the climate, air quality, and related human health benefits of various 2030 PV deployment scenarios.

A woman wears a face mask as she looks at her smartphone while walking along a street in Beijing

AP

Journal Article - Applied Energy

Potential Co-benefits of Electrification for Air Quality, Health, and CO2 Mitigation in 2030 China

    Authors:
  • Junnan Yang
  • Xi Lu
  • Denise L. Mauzerall
| May 15, 2018

Electrification with decarbonized electricity is a central strategy for carbon mitigation. End-use electrification can also reduce air pollutant emissions from the demand sectors, which brings public health co-benefits. In this article, the authors focus on electrification strategies for China, a country committed to both reducing air pollution and peaking carbon emissions before 2030. Considering both coal-intensive and decarbonized power system scenarios for 2030, they assess the air quality, health, and climate co-benefits of various end-use electrification scenarios for the vehicle and residential sectors relative to a non-electrified coal-intensive business-as-usual scenario.

high voltage power lines

AP

Journal Article - Energies

Potential Arbitrage Revenue of Energy Storage Systems in PJM

| 2017

The volatility of electricity prices is attracting interest in the opportunity of providing net revenue by energy arbitrage. The authors analyzed the potential revenue of a generic Energy Storage System (ESS) in 7395 different locations within the electricity markets of Pennsylvania-New Jersey-Maryland interconnection (PJM), the largest U.S. regional transmission organization, using hourly locational marginal prices over the seven-year period 2008–2014.

Shanghai

Creative Commons

Journal Article - Environmental Research Letters

Air Quality and Climate Benefits of Long-distance Electricity Transmission in China

    Authors:
  • Jiahai Yuan
  • Yu Zhao
  • Meiyun Lin
  • Qiang Zhang
  • David G. Victor
  • Denise L. Mauzerall
| 2017

China is the world's top carbon emitter and suffers from severe air pollution. It has recently made commitments to improve air quality and to peak its CO2 emissions by 2030. The authors examine one strategy that can potentially address both issues—utilizing long-distance electricity transmission to bring renewable power to the polluted eastern provinces. 

Earth at night, 2012. People around the world depend upon electric lighting. Generating electricity using increased amounts of non-fossil fuels is critical to slowing climate change.

USA.gov

Journal Article - Ecological Economics

Using Inclusive Wealth for Policy Evaluation: Application to Electricity Infrastructure Planning in Oil-Exporting Countries

| 2017

Decision-makers often seek to design policies that support sustainable development. Prospective evaluations of how effectively such policies are likely to meet sustainability goals have nonetheless remained relatively challenging. Evaluating policies against sustainability goals can be facilitated through the inclusive wealth framework, which characterizes development in terms of the value to society of its underlying capital assets, and defines development to be potentially sustainable if that value does not decline over time.

The Philippines' Pilillia Wind Farm 7 days before inauguration, 13 January 2016

Creative Commons

Journal Article - Journal of Cleaner Production

Driving Force or Forced Transition?: The Role of Development Cooperation in Promoting Energy Transitions in the Philippines and Morocco

| August 2016

This article contributes to the understanding of transitions towards low carbon societies in the developing world. While adding extensive empirical insights from the status of energy transitions in two countries faced with major energy challenges, the Philippines and Morocco, the authors contribution enquires what role external actors like international donors in general, and Germany in particular, can play in such transitions.

Vice President Joe Biden talks with staff at the National Renewable Energy Lab's Process Development and Integration Laboratory, which brings together technical experts from NREL, the solar industry, & universities for collaborative research, 4 June 2012.

Dennis Schroeder

Journal Article - Risk Analysis

Quantifying the Effects of Expert Selection and Elicitation Design on Experts' Confidence in Their Judgments About Future Energy Technologies

| 2016

Expert elicitations are now frequently used to characterize uncertain future technology outcomes. However, their usefulness is limited, in part because: estimates across studies are not easily comparable; choices in survey design and expert selection may bias results; and overconfidence is a persistent problem. The authors provide quantitative evidence of how these choices affect experts' estimates.

A rural stove using biomass cakes, fuelwood and trash as cooking fuel... It is a major source of air pollution in India, and produces smoke and numerous indoor air pollutants at concentrations 5 times higher than coal.

Wikipedia

Journal Article - Nature Energy

Energy decisions reframed as justice and ethical concerns

| 6 May 2016

Many energy consumers, and even analysts and policymakers, confront and frame energy and climate risks in a moral vacuum, rarely incorporating broader social justice concerns. Here, to remedy this gap, we investigate how concepts from justice and ethics can inform energy decision-making by reframing five energy problems — nuclear waste, involuntary resettlement, energy pollution, energy poverty and climate change — as pressing justice concerns.