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Perennial grasses are touted as sustainable feedstocks for energy production. Such benefits, however, may be offset if excessive nitrogen (N) fertilization leads to economic and environmental issues. Furthermore, as yields respond to changes in climate, nutrient requirements will change, and thus guidance on minimal N inputs is necessary to ensure sustainable bioenergy production.

Organization:
DOE
Author(s):
Huaihai Chen , Zhongmin Dai , Henriette I. Jager , Stan D. Wullschleger , Jianming Xu , Christopher W. Schadt
Funded from the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office.

Practicing agriculture decreases downstream water quality when compared to non-agricultural lands. Agricultural watersheds that also grow perennial biofuel feedstocks can be designed to improve water quality compared to agricultural watersheds without perennials. The question then becomes which conservation practices should be employed and where in the landscape should they be situated to achieve water quality objectives when growing biofuel feedstocks.

Organization:
DOE
Author(s):
Jasmine A.F. Kreig , Herbert Ssegane , Indrajeet Chaubey , Maria C. Negri , Henriette I. Jager
Funded from the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office.

This workshop examines the potential benefits, feasibility, and barriers to the use of biofuels in place of heavy fuel oil (HFO) and marine gas oil for marine vessels. More than 90% of world’s shipped goods
travel by marine cargo vessels powered by internal combustion (diesel) engines using primarily low-cost residual HFO, which is high in sulfur content. Recognizing that marine shipping is the largest source of

Organization:
DOE
Author(s):
Mike Kass , Zia Abdullah , Mary Biddy , Corinne Drennan , Troy Hawkins , Susanne Jones , Johnathan Holladay , Dough Longman , Emily Newes , Tim Theiss , Tom Thompson , Michael Wang
Funded from the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office.

Advanced biomass feedstocks tend to provide more non-fuel ecosystem goods and services (ES) than 1st-generation alternatives. We explore the idea that payment for non-fuel ES could facilitate market penetration of advanced biofuels by closing the profitability gap. As a specific example, we discuss the Mississippi-Atchafalaya River Basin (MARB), where 1st-generation bioenergy feedstocks (e.g., corn-grain) have been integrated into the agricultural landscape.

Organization:
DOE
Author(s):
Henriette I.Jager , Rebecca A. Efroymson
Funded from the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office.

Ecological disturbances are occurring with greater frequency and intensity than in the past. Under projected shifts in disturbance regimes and patterns of recovery, societal and environmental impacts are expected to be more extreme and to span larger spatial extents. Moreover, preexisting conditions will require a longer time to re‐establish, if they do so at all. The word “unprecedented” is appearing more often in news reporting on droughts, fires, hurricanes, tsunamis, ice storms, and insect outbreaks.

Organization:
DOE
Author(s):
Virginia H Dale , Henriette I Jager , Amy K Wolfe , Rebecca A Efroymson
Funded from the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office.

Policy makers are interested in estimates of the potential economic impacts of oil price shocks, particularly during periods of rapid and large increases that accompany severe supply shocks. Literature estimates of the economic impacts of oil price shocks, summarized by the oil price elasticity of GDP, span a very wide range due to both fundamental economic and methodological factors. This paper presents a quantitative meta-analysis of the oil price elasticity of GDP for net oil importing countries, with a focus on the United States (US).

Organization:
DOE
Author(s):
Gbadebo A.Oladosu , Paul N.Leiby , David C.Bowman , Rocio Uría-Martínez , Megan M.Johnson
Funded from the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office.

The ongoing debate about costs and benefits of wood‐pellet based bioenergy production in the southeastern United States (SE USA) requires an understanding of the science and context influencing market decisions associated with its sustainability. Production of pellets has garnered much attention as US exports have grown from negligible amounts in the early 2000s to 4.6 million metric tonnes in 2015. Currently, 98% of these pellet exports are shipped to Europe to displace coal in power plants.

Organization:
DOE
Author(s):
Virginia H. Dale , Keith L. Kline , Esther S. Parish , Annette L. Cowie , Robert Emory , Robert W. Malmsheimer , Raphael Slade , Charles Tattersall (Tat) SMITH Jr
Funded from the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office.

Wood pellet exports from the Southeastern United States (SE US) to Europe have been increasing in response to European Union member state policies to displace coal with renewable biomass for electricity generation. An understanding of the interactions among SE US forest markets, forest management, and forest ecosystem services is required to quantify the effects of pellet production compared to what would be expected under a reference case or ‘counterfactual scenario’ without pellet production.

Organization:
DOE
Author(s):
Esther S. Parish , Virginia H. Dale , Keith L. Kline , Robert C. Abt
Funded from the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office.

Published in Bioenergy and Land Use Change (pp. 141–153). John Wiley & Sons, Inc.

Organization:
DOE
Author(s):
Nagendra Singh , Keith L. Kline , Rebecca A. Efroymson , Budhendra Bhaduri , Bridget O'Banion
Funded from the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office.

To date, feedstock resource assessments have evaluated cellulosic and algal feedstocks independently, without consideration of demands for, and resource allocation to, each other. We assess potential land competition between algal and terrestrial feedstocks in the United States, and evaluate a scenario in which 41.5 × 109 L yr−1 of second-generation biofuels are produced on pastureland, the most likely land base where both feedstock types may be deployed.

Organization:
DOE
Author(s):
Langholtz, M. , A. M. Coleman , L.M. Eaton , M. S. Wigmosta , Chad Hellwinckel , Craig C. Brandt
Funded from the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office.