Over the past ten years, there’s been tremendous progress on carbon capture and storage. What are the next steps?
This post originally appeared on Greenbiz.com. It is the final piece in a three-part series that coincides with the Global Carbon Capture and Storage Institute’s meeting this week in Pittsburgh. Click to read Part 1 and Part 2.
It was nearly a decade ago that I, along with other researchers at national labs and universities, first began exploring the regulatory barriers to carbon capture and storage (CCS).
Looking back at our findings, it’s clear that there has been tremendous progress towards addressing these barriers as they were first described.
In the U.S., 21 states already have CCS regulations or incentives in place. Country-specific regulations are in force in the UK (based on the EU Directive for Geological Storage of Carbon Dioxide) and Australia, and many countries are currently drafting their CCS regulations.
Progress for CCS
Comparing the details of the new regulations reveals a unified understanding of how to address many of the most important issues, such as protecting human health and the environment, and suggests real progress.
These important similarities include: Siting requirements that address g eologic characteristics to ensure the integrity of the storage site, Requiring that site-specific risk assessments be conducted and contingency plans be developed prior to injection, Rigorous processes for establishing a monitoring area, based on simulation models and actual data collected during operation, and Ensuring that the area for monitoring goes beyond the injected CO2 itself to encompass any areas of elevated pressure within the subsurface reservoir.
Next Steps
If CCS technology is going to be deployed to mitigate climate change, we have to establish the right procedures for long-term stewardship and community engagement. Currently, however, governments are addressing these two issues quite differently.
The approach to long-term stewardship varies by country, state/province, and in some cases by project. Project-specific government coverage for stewardship (including liability) was granted for the FutureGen project in the U.S. and for the Gorgon project in Australia. In addition, seven U.S. states have rules for post-closure stewardship, and many have established CCS trust funds for long-term monitoring and remediation. At the national level, many governments are building on the EU model whereby the responsibility for a site is transferred to an appropriate government authority only after the operator can demonstrate that the stored CO2 will not pose a threat to human health and the environment. (This aligns with the approach outlined in the widely-adopted CCS Guidelines).
Community engagement is often covered under environmental impact statement requirements, but unfortunately the existing rules are often not implemented uniformly. Regulators are now designing protocols for engagement and public participation around CCS projects.
Part of the challenge for implementing CCS regulations is that in most countries, responsibility for CCS falls under several different ministries or agencies.
To address this in the U.S., President Obama recently established an interagency CCS Task Force to develop a coordinated and comprehensive plan for expediting CCS deployment.
Another challenge most governments face is that many aspects of CCS are covered under existing rules and regulations, which must now be revised to effectively accommodate CCS. For example, the U.S. has an established program for managing injection of underground waste, but the unique properties of CO2 have prompted EPA to draft regulations that are specific to geologic CO2 storage.
A Climate of Cooperation
Addressing climate change is not something any one country can do alone. Globally, we must establish a culture of cooperation if we are to accelerate the deployment and availability of new technologies like CCS. Our cooperation and capacity building needs to go beyond the technical details of research, development, and demonstration, and incorporate greater collaboration and knowledge-sharing on policy and regulatory issues.
The Global CCS Institute, along with the International Energy Agency’s (IEA) regulators’ network is taking a leading role in establishing a platform for cooperation when designing CCS policies and regulatory options. Global cooperation is essential if CCS is to realize its potential as a responsible and effective option for climate mitigation.
Sarah Forbes, Senior Associatesforbes@wri.org+1 (202) 729-7714follow on twitterSarah M. Forbes has been a senior associate at the World Resources Institute (WRI) since May 2008.






3 Comments
i think we should just wait
i think we should just wait for the result ,and before that ,we may not influence the policy-decision just by our imagination.
None of the "major advances"
None of the "major advances" made in coal carbon capture and storage have been made public, as they are hidden behind proprietary shields - if the even exist.
So far, the demonstration systems are little more than coal gasification units and/or enhanced CO2 oil well systems. The efforts to use various filters and membranes to separate the CO2 and the H2 have likewise flopped, probably due to the many contaminants (sulfur, etc.) present in coal combustion streams. It may be true that the overall efficiency of coal-to-gasoline systems has increased slightly - but coal-to-gasoline increases CO2 emissions, even relative to crude oil.
The actual energy cost of capturing CO2 from a fuel combustion stream has never been revealed - probably because it still exceeds the amount of energy that can be extracted from the fuel itself. The only major "demonstration projects" seen today only capture a small portion of the total CO2, and even these projects - like the one in Virginia - don't report how much energy it takes to do so.
Even if you could capture the CO2 without prohibitive energy loss, the storage options seem less and less plausible. Injecting CO2 into old reservoirs in any quantity seems highly unlikely - see the recent study on the physics of reservoir injection by Economides in the Journal of Petroleum Science and Engineering (Google News will take you to the articles on it).
The paper's conclusion is that fossil fuel carbon capture and sequestration "is not a practical means to provide any substantive reduction in CO2 emissions, although it has been repeatedly presented as such by others."
At the very least, a completely independent and transparent review of the CCS claims should be conducted before the DOE gives any more money to this implausible scheme - and well-meaning environmentalists and economists should reconsider their support for it.
While you are correct that
While you are correct that often the details of commercial product tests are not always made public, there are many studies that estimate the cost and performance of CO2 capture based on systems studies. There are also two online tools you may be interested in testing that allow you to estimate the cost and performance of power plants equipped with CO2 capture. The documentation for these models is available online and both tools give you the option of setting key parameters to estimate the energy penalty associated with CO2 capture:
Regarding the Economides paper and the concerns presented about storage capacity limitations, please see my April 28th post, which includes references to many of the scientific rebuttals that have been published.
You are right that independent and transparent reviews of our government-funded research programs must continue. Such reviews of the DOE CCS program have been completed in the past and conducted by the Government Accounting Office and the National Research Council.