252 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.

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.

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.

an operator inspects a photolithography tool used to manufacture these solar cells.

Daniel Derkacs/SolarJunction

Journal Article - Research Policy

Governments as Partners: The Role of Alliances in U.S. Cleantech Startup Innovation

Accelerating innovation in clean energy technologies is a policy priority for governments around the world aiming to mitigate climate change and to provide affordable energy. Most research has focused on the role of governments financing R&D and steering market demand, but there is a more limited understanding of the role of direct government interactions with startups across all sectors. The authors  propose and evaluate the value-creation mechanisms of network resources from different types of partners for startups, highlighting the unique resources of government partners for cleantech startups. 

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.

Venkatesh "Venky" Narayanamurti

Eliza Grinnell/Harvard SEAS

News - Belfer Center for Science and International Affairs, Harvard Kennedy School

"Venky" Narayanamurti Honored with Bueche Award

    Author:
  • Leah Burrows
| Oct. 03, 2018

Professor Venkatesh "Venky" Narayanamurti is the Benjamin Peirce Research Professor of Technology and Public Policy at Harvard University, former dean of the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS), and former director of the Belfer Center's Science, Technology, and Public Policy Program. The award is one of the highest honors given by the National Academy of Engineering, and recognizes an engineer who has shown dedication in science and technology as well as active involvement in determining U.S. science and technology policy.

Solar panels at the National Renewable Energy Laboratory gather sunlight at the test facility

AP/Jack Dempsey

Journal Article - MRS Energy & Sustainability

Nurturing Transformative U.S. Energy Research: Two Guiding Principles

The authors raise for debate and discussion what in their opinion is a growing mis-control and mis-protection of U.S. energy research. They outline the origin of this mis-control and mis-protection, and propose two guiding principles to mitigate them and instead nurture research: (1) focus on people, not projects; and (2) culturally insulate research from development, but not science from technology.

newer design of a nuclear reactor

DOE/Advanced Reactor Technology

Journal Article - Nature Energy

A Tortoise Approach for US Nuclear Research and Development

| July 30, 2018

In Aesop's fable, a swift hare races with a deliberate tortoise. In the end, the tortoise wins by taking a slow and steady approach. The authors argue that, given the economic constraints on US deployment of nuclear power, a "tortoise strategy" is more prudent for US government nuclear R&D efforts.