Life Cycle Analysis

Combination

These analyses provide comparisons of different energy technologies. This includes written analyses and dynamic tools that compare cost and environmental metrics of different technologies.


Indirect Impacts of Renewable Electricity Penetration and the Growing Importance of a Life Cycle Perspective
In this presentation, given at the LCA XIV Conference, it is observed that the percent of direct emissions to total emissions from the U.S. electricity mix decreases by 1.34%, and indirect emissions associated with wind, solar thermal, geothermal, and natural gas increase from 2010 to 2040. As such, the field of LCA becomes more important in the next 30 years in determining both the direct and indirect GHG emissions associated with comparative energy technologies, as well as other potential environmental impacts, where differences in indirect and direct emissions would be captured in framing economy wide policies.
Authors: Jeremie Hakian, Joe Marriott, James Littlefield, Greg Cooney, Timothy J. Skone, P.E.
Date: December, 2014

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Overview of LCA at NETL
At the Department of Energy’s National Energy Technology Laboratory, life cycle analysis (LCA) is used as tool and framework for performing these types of evaluations. This presentations, given at the LCA XIV Conference, describes the LCA process at NETL, including unique application of stochastic methods to environmental and economic analyses, and show highlights from several recent studies such as a greenhouse gas inventory of unconventional natural gas extraction, and a comparison of advanced power technology options.
Authors: Timothy J. Skone, PE, Robert James
Date: December, 2014

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Value of LCA and its Applicability to Natural Gas Analysis
This presentation discusses the value of an LCA perspective on natural gas with a focus on upstream natural gas. It also discusses the current natural gas research.
Authors: James Littlefield, Joe Marriott, Timothy J. Skone
Date: June, 2014

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Time series analysis of radiative forcing in a co-fired power system
This presentation considers the effect of GHG emission timing from of a power plant using different feedstocks -- coal, hybrid poplar, and roundwood. It also focuses on methods and aspects of the biomass systems, such as GWP metric, DLUC and ILUC, biomass uptake and emission, and modeling choice.
Authors: Greg Schivley, Troy R. Hawkins, Wesley W. Ingwerson, Joseph Marriott, Timothy J. Skone
Date: May, 2014

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Estimating the GHG Footprint of Large-scale, Interconnected Energy Systems
This presentation discusses the benefits of LCA in regards to energy analysis. It compares technology options, evaluates policy impact on systems, considers coal and natural gas boundaries, and evaluates metrics.
Authors: Timothy J. Skone, PE, Joe Marriott, James Littlefield, Greg Cooney
Date: May, 2014

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From Unit Processes to Completed LCAs - NETL Life Cycle Analysis Library
This poster describes what the Department of Energy (DOE) National Energy Technology Laboratory (NETL) unit process library is, how the unit processes are used in NETL life cycle analysis (LCA), and how to access it.
Authors: Tim Skone
Date: October, 2013

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Overview of Energy Life Cycle Analysis at NETL
This presentation describes the life cycle analysis (LCA) process at the National Energy Technology Laboratory (NETL). NETL uses LCA as a tool for evaluating the advantages and disadvantages of energy technology and policy options on a common basis. LCA includes the impacts of converting fuel to useful energy, infrastructure construction, extraction and transportation of fuel, and transport of the final energy product to the end user.
Authors: Tim Skone
Date: October, 2013

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The Challenge of Co-product Management for Large-scale Energy Systems—Power, Fuel and CO2
Applying traditional co-product management methods such as physical allocation and system expansion in conventional ways can lead to large study uncertainty in life cycle analysis (LCA) of large scale energy systems. The National Energy Technology Laboratory's (NETL) LCA model of Carbon dioxide-Enhanced Oil Recovery (CO2-EOR) is a cradle-to-grave model that accounts for the greenhouse gas emissions and other environmental burdens from a system which connects the power sector to the liquid fuels sector. The model leverages existing NETL life cycle data to account for environmental burdens upstream and downstream from the CO2-EOR site, including alternative sources of CO2, petroleum refining, and gasoline or diesel combustion. The use of advanced power plants with carbon capture as a source of CO2 results in the co-production of electricity and transportation fuels (gasoline or diesel). Co-product allocation can be avoided by expanding the system to include displacement of other routes to electricity generation, but conjecture about the expanded system leads to wide uncertainty. If energy is used as a basis for co-product allocation between electricity and liquid fuel (diesel or gasoline), the differences between the useful energy in the energy products hinders comparability. Partitioning a portion of the system, in this case the power plant, to perform more accurate energy allocation is a third approach, and is possible when detailed plant schematics allow disaggregation of integrated processes.
Authors: Tim Skone
Date: October, 2013

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Power Generation Technology Comparison from a Life Cycle Perspective
This analysis provides insight into key criteria for the feasibility of seven types of energy technologies. The seven types of technologies include electricity from natural gas, co-firing of coal and biomass, nuclear fuel, wind, hydropower, geothermal, and solar thermal resources. The key criteria for evaluating these technologies are defined.
Authors: Tim Skone, James Littlefield, Greg Cooney, Joe Marriott, PhD
Date: March, 2013

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Overview of Energy LCA at NETL
Life Cycle Analysis (LCA) is used to inform and defend NETL's technology programs, provide bases for comparison, and identify opportunities for improvement. NETL uses a 5-stage life cycle approach, beginning with raw material acquistion and ending with product use. Metrics include greenhouse gas emissions, other air emissions, water use, water quality, and resource consumption. Uncertainty is quantified for all results produced by NETL's LCA program. NETL's LCA program has made data and modeling tools available to the public.
Authors: Tim Skone
Date: September, 2012

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From Unit Processes to Completed LCAs: NETL LCA Library
NETL's unit process library holds over 300 unit processes that allow cradle-to-grave analyses of energy systems. It includes gate-to-gate unit processes as well as "rolled up" unit processes that provide cradle-to-gate inventory results. In addition to the unit process database, NETL has also developed publicly available tools that allow calculation of life cycle results.
Authors: Tim Skone
Date: September, 2012

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Exploring Economics and Environmental Performance: Power Systems LCA Tool
The Power LCAT tool shows environmental and cost results for NETL's LCA's of power systems, including fossil and wind power. In addition to reporting results for costs and emissions, it allows trade-off analysis between costs and emissions. It also allows the user to evaluate the sensitivity of results to changes in key parameters.
Authors: Tim Skone
Date: September, 2012

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Role of Alternative Energy Sources: Technology Assessment Compilation
NETL has applied a single set of methods for calculating the environmental, cost, and other aspects of seven options for baseload power generation. LCA is used to calculate environmental results, and life cycle boundaries are also applied to cost results. A set of other technical and non-technical criteria are used to gain a broad understanding of the roles of alternative energy sources in the U.S. energy portfolio.
Authors: Robert James, Tim Skone
Date: September, 2012

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NETL Upstream Dashboard Tool
The goal of the Upstream Tool is to allow the user to customize key parameters specific to their Life Cycle case study or desired scenario, and generate customized Upstream Emissions results quickly and simply.
Authors: Tim Skone, Greg Cooney, Chungyan Shih
Date: June, 2012

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Power Systems Life Cycle Analysis Tool
The Power Systems Life Cycle Analysis Tool (Power LCAT) is a high-level dynamic model that calculates production costs and tracks environmental performance for a range of electricity generation technologies: natural gas combined cycle (NGCC), integrated gasification combined cycle (IGCC), supercritical pulverized coal (SCPC), existing pulverized coal (EXPC), nuclear, and wind (with and without backup power). All of the fossil fuel technologies also include the option of carbon capture and sequestration technologies (CCS). The model allows for quick sensitivity analysis on key technical and financial assumptions, such as: capital, O&M, and fuel costs; interest rates; construction time; heat rates; taxes; depreciation; and capacity factors. Power LCAT is targeted at helping policy makers, students, and interested stakeholders understand the economic and environmental tradeoffs associated with various electricity production options.
Authors: Justin Adder, Thomas E. Drennen, Joel Andruski
Date: May, 2012

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LCA: Power Studies Compilation
Develops an inventory of emissions results, and calculates life cycle costs for each plant with and without CCS.
Authors: Robert James
Date: October, 2010

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