Energy

243 Items

Workers shovel waste from a wheat farm into a prototype for a biomass machine

AP/Andy Wong

Journal Article - Proceedings of the National Academy of Sciences of the United States of America

Gasification of Coal and Biomass: A Net Carbon-Negative Power Source for Environment-Friendly Electricity Generation in China

    Authors:
  • Xi Lu
  • Liang Cao
  • Haikun Wang
  • Jia Xing
  • Shuxiao Wang
  • Siyi Cai
  • Bo Shen
  • Qing Yang
  • Chris P. Nielsen
  • Michael B. McElroy
| 2019

Deploying coal-bioenergy gasification systems with carbon capture and storage (CBECCS) provides a promising opportunity for China to realize its carbon mitigation and air pollution abatement goals simultaneously. The authors conducted a comprehensive assessment of CBECCS technology for China, with a focus on plant and fuel configurations (e.g., biomass ratios) and economics, as well as CO2 and greenhouse gas emissions and cobenefits for air quality.

Saudi Arabia’s Moment in the Sun

AP/Donna Fenn Heintzen

Analysis & Opinions - Carnegie Endowment for International Peace

Saudi Arabia’s Moment in the Sun

| May 07, 2019

As part of a high profile tour of China in February, Saudi Arabia’s Crown Prince Mohammed Bin Salman (MBS) has overseen a range of multi-billion dollar pledges and MOUs with Beijing. This partly reflects Riyadh’s desire to diversify sources for investments and technology following the mass withdrawal of major Western business leaders from the Future Investment Initiative in October 2018, after the murder of Saudi Journalist Jamal Khashoggi in the Saudi Embassy in Istanbul. Yet cooperation with China on renewable energy, if successful, would realize a significant first step towards Saudi Arabia’s lofty ambitions for solar and wind power.

Dabhol Ratnagiri Power Station

Wikimedia CC/Ankur P

Analysis & Opinions - Belfer Center for Science and International Affairs, Harvard Kennedy School

Comments on India's Draft Electricity (Amendment) Act 2018

| Apr. 30, 2019

As the electricity sector undergoes a transformation in India, new challenges and opportunities are coming to the fore. It is imperative that the institutional framework, i.e., laws, rules, and policies, essential for its efficient operation are updated and redesigned. In that regard, the Electricity (Amendment) Act 2018 is a welcome and timely step.

A man prepares to charge his electric-powered vehicle parked at a shopping mall in Beijing, Monday, Sept. 11, 2017.

AP Photo/Andy Wong

Paper - Environment and Natural Resources Program, Belfer Center

The Role of Electric Vehicles in Decarbonizing China’s Transportation Sector

| April 2019

This paper focuses on the deep decarbonization of the transportation sector. The first part of the paper provides an assessment of China’s efforts to stimulate the rapid deployment of electric vehicles. The second part analyzes the CO2 equivalent reductions from a 20% electric vehicle deployment scenario. It concludes that under most assumptions, emissions will be reduced, but the total reduction will be less than many people believe due to the carbon intensity of battery manufacturing.

Stan Osserman, director of the Hawaii Center for Advanced Transportation Technologies, speaks in front of a new waste to energy facility at Joint Base Pearl Harbor-Hickam, Hawaii.

AP/Audrey McAvoy

Journal Article - Journal of Cleaner Production

Stochastic Cost-benefit Analysis of Urban Waste-to-Energy Systems

Municipal solid waste generation is a rapidly increasing challenge that is leading to severe pollution and environmental degradation in many urban areas of developing countries. This study presents the Waste to Energy Recovery Assessment (WERA) framework, a new quantitative decision support model for initial evaluation and alternative comparisons of different thermochemical treatments of municipal wastes. The framework is used to study waste-to-energy (WtE) systems for Abu Dhabi, Riyadh, Tokyo, and New York. The results show that WtE systems can fulfill only 1.4–3.6% of 2014 electricity demand in the analyzed cases.

Charging electric Vehicle

Flickr/Sino-German Urbanization Partnership

Journal Article - Elsevier Inc.

Electric Vehicle Recycling in China: Economic and Environmental Benefits

    Authors:
  • Fuquan Zhao
  • Zongwei Liu
  • Han Hao
| January 2019

With the rapid growth of electric vehicles in China, their benefits should be scientifically identified to support the industry development. Although the life cycle benefits of electric vehicles have been analyzed worldwide, the recycling phase has not been fully studied yet, especially in China. Therefore, this study focuses on the economic and environmental benefits of electric vehicle recycling in China. Based on the technology adopted by leading enterprises, the gross income and reduction of energy consumption and greenhouse gas emissions are calculated to reveal the benefits.

View of the crescent moon through the top of the earth's atmosphere. Photographed above 21.5°N, 113.3°E by International Space Station crew Expedition 13 over the South China Sea, just south of Macau (NASA image ID: ISS013-E-54329).

NASA

Discussion Paper

Governance of Highly Decentralized Nonstate Actors: the Case of Solar Geoengineering

| November 2018

We here introduce the idea of highly decentralized solar geoengineering, plausibly done in form of small high-altitude balloons. While solar geoengineering has the potential to greatly reduce climate change, it has generally been conceived as centralized and state deployed. Potential highly decentralized deployment moves the activity from the already contested arena of state action to that of environmentally motivated nongovernmental organizations and individuals, which could disrupt international relations and pose novel challenges for technology and environmental policy. We explore its feasibility, political implications, and governance.

A satellite view of the Gansu Dunhuang Solar Park, a photovoltaic power station under construction in Gansu Provence, as seen on June 9, 2018.

DigitalGlobe, CNES/Airbus, Google Earth, used with permission

Report - Environment and Natural Resources Program, Belfer Center

Harvard-Tsinghua Workshop on Low-Carbon Development and Public Policy

| September 2018

The Belfer Center’s Environment and Natural Resources Program and the Center for Science, Technology, and Education Policy at Tsinghua University held the fifth annual Tsinghua-Harvard Workshop on Low-Carbon Development and Public Policy. This event brought together leading experts on climate and energy from academic, business, and government communities in both the United States and China. This year’s workshop focused on electricity systems and renewable energy penetration.