Thank you Chairman Murphy, Ranking Member DeGette, and members of the Subcommittee. I appreciate the opportunity to discuss the
Coal fuels approximately 40 percent of our domestic electricity production. As the
A major challenge to coal, however, is that it is a major source of carbon dioxide (CO2) emissions. Therefore, it is critical that we promote currently available technologies and develop more economic and broadly available technologies to reduce those emissions from coal-fired power plants. To that end, the
As the President has made clear, fossil fuels - including coal - provide more than 80 percent of our energy today and they are projected to remain a large source of energy for decades. The fossil solicitation - in addition to the
Clean Coal Research Program
DOE continues to play a leadership role in the development of clean coal technologies with a focus on CCS. The Clean Coal Research Program - administered by
The Clean Coal Research Program, in partnership with the private sector, is focused on maximizing efficiency and environmental performance, while minimizing the costs of these new technologies. In recent years, the Program has been restructured to focus on clean coal technologies with CCS. The Program pursues the following two major strategies:
1) capturing and storing greenhouse gases; and
2) improving the efficiency and footprint of fossil energy systems.
The first strategy aims to remove emissions of greenhouse gases from fossil fueled energy systems. The second strategy seeks to improve the fuel-to-energy efficiencies of these systems, thus reducing pollutant emissions, water usage, and carbon emissions on a per unit of energy basis. Collectively, these two strategies constitute the
The Clean Coal Research Program is addressing the key challenges that confront the development and deployment of clean coal technologies through research on cost-effective capture technologies; monitoring, verification, and accounting technologies to ensure permanent storage; and development of advanced energy systems. Research is focused on developing technology options that dramatically lower the cost of capturing carbon dioxide from fossil fueled energy plants. This research can be categorized into three technical pathways: post-combustion, pre-combustion, and oxy- combustion. Post-combustion refers to capturing CO2 from the stack gas after a fuel has been combusted in air. Pre-combustion refers to a process where a hydrocarbon fuel is converted to a mixture of hydrogen and carbon dioxide, and CO2 is captured from the gas mixture before it is combusted. Oxy-combustion is an approach where a hydrocarbon fuel is combusted in pure or nearly pure oxygen rather than air, which releases energy and produces a mixture of CO2 and water that can easily be separated to produce pure CO2. We pursue all three pathways today because all three pathways are comparable in terms of cost and efficiency, and all have engineering strengths.
Collectively, research in each of these technical pathways is exploring a wide range of technical approaches such as hydrogen membranes; oxy-combustion concepts; solid sorbents; catalyzed solvents; advanced gas/liquid scrubbing technologies; and advanced hybrid concepts such as liquid membrane contactors.
These efforts cover not only improvements to state-of-the-art technologies but also development of several revolutionary concepts, such as metal organic frameworks, ionic liquids, enzyme-based systems, and chemical looping -a form of oxy-combustion that utilizes oxygen from metal oxide as an oxygen carrier for fuel combustion, or for making hydrogen by "reducing" water. In combustion applications, the products of chemical looping are CO2 and H2O as steam. Thus, once the steam is condensed, a relatively pure stream of CO2 is produced ready for sequestration. This work has also led to manufacturing breakthroughs in microfluidics, nanofabrication, and molecular design. Coupling these developments with other advances in efficiency improvements and cost reduction from developments in gasification and turbines will help provide a technology base of fossil energy systems integrated with CCS that will be widely adopted.
Regional Carbon Sequestration Partnerships
The Regional Carbon Sequestration Partnerships were created by DOE in 2003 through a competitive solicitation. The Partnerships were designed to address a range of issues associated with geologic storage of CO2. The Clean Coal Research Program has been performing CCS field tests focused on injection, monitoring, verification, accounting and other aspects of geologic storage for many years, and the seven Regional Carbon Sequestration Partnerships are critical to this effort. These Partnerships are comprised of state agencies, universities, and private companies. They represent more than 400 unique organizations in 43 States, and four Canadian Provinces. Geographic differences in fossil fuel use and potential storage sites across
Together, the Partnerships form a network of capability, knowledge, and infrastructure that will help enable geologic storage technology to play a role in the clean energy economy. They represent regions encompassing 97 percent of coal-fired CO2 emissions, 97 percent of industrial CO2 emissions, 96 percent of the total land mass, and essentially all the geologic storage sites that can potentially be available for geologic carbon storage.
During the Validation Phase of the program, Regional Partnerships drilled wells and injected small quantities of CO2 to validate the potential of key storage locations totaling more than 1 million metric tons of CO2 at 19 small scale injection projects throughout
Over the course of these initiatives, DOE and the Partnerships are addressing key infrastructure issues related to permitting, pore space ownership, site access, liability, public outreach, and education. An important product of this work is a series of Best Practice Manuals on topics such as site characterization, site construction, operations, monitoring, mitigation, closure, and long-term stewardship. These Manuals will serve as guidelines for a future geologic sequestration industry in their regions, and help transfer the lessons learned from DOE's Clean Coal Research Program to all regional stakeholders. The first editions of the Best Practice Manuals are available on DOE's reference shelf n1 and the Manuals will be periodically updated as lessons learned from the large scale field tests are realized.
We have also pursued projects designed to develop technologies and protocols for the monitoring, verification, and accounting (MVA) of CO2 storage in geologic formations as well as simulating the behavior of geologically-stored CO2. MVA of geologic storage sites is an important part of making geologic storage a safe, effective and reliable method of greenhouse gas control. These activities will culminate in a set of best practices for the deployment of carbon capture, utilization and storage technology.
In addition to this foundational science, technology, infrastructure, and practice, DOE and the Partnerships continue to work closely with the
Demonstrations at Commercial-Scale
The Clean Coal Program's work is to meet the technical and economic challenges associated with the deployment of newer coal technologies. Commercial-scale demonstrations help the industry understand and overcome start-up issues, address component integration issues, and gain the early learning commercial experience necessary to reduce technology risk and secure private financing and investment for future plants.
The Department is implementing commercial-scale demonstration projects through the Clean Coal Power Initiative (CCPI),
The CCPI is a cost-shared partnership between the Government and industry to develop and demonstrate advanced coal-based power generation technologies at the commercial scale. By enabling advanced technologies to overcome technical risks involved with scale-up and bringing them to the point of commercial readiness, CCPI accelerates the development of advanced coal generation technologies integrated with CCS. The CCPI also facilitates the movement of technologies into the marketplace that are emerging from the core research and development activities.
The CCPI program received an additional
In addition to the CCPI and
Examples of progress on these projects include the Archer Daniels Midland ICCS project in
It is important to understand that every large demonstration project matures through a series of stages, each of which requires important milestones and results. These allows the teams of managers at DOE headquarters and NETL to monitor progress, manage changing national and global commercial settings, and ensure appropriate use of public funds in support of the approved national objectives.
CO2 Utilization Technologies
The coal research and development program has supported research on CO2 utilization technologies for more than a decade. When the Carbon Storage Program (formerly named the Sequestration Program) was initiated in the mid-1990s, it was recognized that technologies such as mineralization, chemical conversion to useful products, algae production, enhanced oil recovery and enhanced coal bed methane recovery could play an important role in mitigating CO2 emissions. Other than EOR, the CO2 emissions reduction potential of these approaches is limited, due to factors such as cost and market saturation of salable byproducts. Even so, these approaches are logical "first-market entry" candidates for greenhouse gas mitigation, due to their ability to produce revenue from use of the CO2 that could be used to offset the costs for these "early adopters." Hence, these options provide a technology bridge and smoother transition to the deployment of the large-scale, stand-alone geologic sequestration operations that will ultimately be needed to achieve the much larger emissions reductions required to approach stabilizing greenhouse gas concentrations in the atmosphere.
EOR represents the most near term and most commercially attractive utilization option for captured CO2. Over the history of the Department, the focus of CO2-EOR R&D has shifted from increased incremental oil production to monitoring, verification, and accounting of geologically stored CO2 as part of a climate change mitigation strategy. As early as the 1970s, DOE-funded projects were developing concepts to improve the effectiveness and applicability of CO2-EOR. Currently, most commercial EOR projects have been strategically located near cheap sources of naturally occurring CO2 or along pipelines from such sources. If research into reducing the cost of CO2 capture from power plants proves successful, anthropogenic sources of CO2 may become readily available for EOR projects.
The DOE's 2012 Carbon Utilization and Storage Atlas of
Today, nearly three out of every four coal-burning power plants in this country are equipped with technologies that can trace their roots back to DOE's advanced coal technology program. These efforts helped accelerate production of cost-effective compliance options to address legacy environmental issues associated with coal use. CCS and related clean coal technologies can play a critical role in mitigating CO2 emissions under many potential future carbon stabilization scenarios. CO2 utilization technologies with salable byproducts are logical "first market entry" candidates for greenhouse gas mitigation due to their ability to produce revenue from the use of CO2. EOR will be the dominant utilization opportunity in the near term and will impart additional experience that will be useful in the Department's continued focus on R&D in other storage formations, such as deep saline aquifers, necessary to address climate change. Nevertheless, challenges remain to promote currently available technologies and develop more economic and broadly available technologies for deployment of CCS. The Department's research programs and efforts have spearheaded R&D that would not have occurred otherwise and has successfully leveraged private investment in advancing the readiness of these emerging clean coal technologies.
Mr. Chairman, and members of the Subcommittee, this completes my prepared statement. I would be happy to answer any questions you may have at this time.
n2 Details about all of the Fossil Energy projects funded by the Recovery Act can be found here: http://energy.gov/fe/fe-implementation-recovery-act.
Read this original document at: http://docs.house.gov/meetings/IF/IF02/20140211/101742/HHRG-113-IF02-Wstate-KlaraS-20140211.pdf
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