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Analysis Focus: NG-based Power Plants

Life Cycle Analysis of Natural Gas Extraction and Power Generation

Date: 8/30/2016
Contact: Timothy J. Skone, P.E.

This report is an update to the NETL 2014 life cycle analysis report of environmental profile for natural gas production and delivery in the United States. This report expands the scope of the environmental profile to include a broad range of impacts and updates the greenhouse gas (GHG) profile to reflect year 2012 production statistics and emission factors based on the current state of science as in 2015. The national methane emission rate is 1.6 percent and ranges between 1.2 and 2.2 percent. This national emission rate is a production weighted composite of 31 different combinations of extraction technologies and regions. The report also evaluates the life cycle environmental profile for producing electricity from natural gas. On 100- and 20-year time frames, the life cycle GHG emissions for baseload electricity from the existing fleet of natural gas fired power plants are 514 and 613 kg CO2e/MWh, respectively.

Analysis of Natural Gas Fuel Cell Plant Configurations - Revision 1

Date: 11/29/2013
Contact: Gregory Hackett

This report presents the results of an updated Pathway Study for natural gas fueled, fuel cell (NGFC) power systems with carbon capture and storage (CCS). The results quantify the performance and cost benefits for a series of projected gains made through the development of advances in the component technologies or improvements in plant operation and maintenance. The results represent the potential future benefits of NGFC technology development. They also provide DOE with a basis to select the most appropriate development path for NGFC, and to measure and prioritize the contribution of its R&D program to future power systems technology.

Performance and Cost of a Natural Gas Fuel Cell Plant with Complete Internal Reforming

Date: 11/27/2013
Contact: Gregory Hackett

The performance and cost of a natural gas fueled, fuel cell (NGFC) power system with complete internal reformation (IR) is presented in this report. The report presents an update to a previous NGFC Pathway Study that includes carbon capture and storage (2011). IR utilizes heat generated in the fuel cell stack directly for the endothermic reformation reaction, improving system efficiency. NGFC systems with complete IR form the ultimate embodiment of the current fuel cell technology development program at the National Energy Technology Laboratory, which is consistent with the commercialization strategies being pursued in the stationary power generation sector.

Cost and Performance Baseline for Fossil Energy Plants, Volume 1: Bituminous Coal and Natural Gas to Electricity, Revision 2a, September 2013

Date: 9/1/2013
Contact: Timothy Fout

Objective is to establish baseline performance and cost estimates for today’s fossil energy plants, it is necessary to look at the current state of technology. Such a baseline can be used to benchmark the progress of the Fossil Energy RD&D portfolio. This study provides an accurate, independent assessment of the cost and performance for Pulverized Coal (PC) Combustion, Integrated Gasification Combined Cycles (IGCC), and Natural Gas Combined Cycles (NGCC), all with and without carbon dioxide (CO2) capture and sequestration assuming that the plants use technology available today.

Quality Guidelines for Energy System Studies: Capital Cost Scaling Methodology

Date: 1/31/2013
Contact: William Summers

The purpose of this section of the Quality Guidelines is to provide a standard basis for scaling costs, with specific emphasis on scaling exponents. The intention of having a standardized document is to provide guidelines for proper procedures to reduce the potential of errors and increase credibility through consistency. This document contains a listing of frequently used pieces of equipment and their corresponding scaling exponent for various plant types, along with their ranges of applicability. This document also details the equations to be used with each exponent.