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Tampilkan postingan dengan label Canada. Tampilkan semua postingan
Tampilkan postingan dengan label Canada. Tampilkan semua postingan

Selasa, 07 Februari 2012

B.C. Aims to Sell Cleaner LNG

I just ran across British Columbia's new provincial natural gas strategy, which includes a specific strategy for expanding liquefied natural gas (LNG) production as a way to mitigate global climate change. That might sound odd to those who are worried--unnecessarily--that gas might be even worse than coal, emissions-wise, but the province seems to have a good grasp of the benefits of replacing coal combustion in Asia with cleaner fuels like natural gas. They've also come up with a unique selling point for their LNG, on the basis that it would be produced using low-emissions electricity and thus have an emissions edge over other LNG sources. Whether this will confer an advantage on B.C.'s LNG by enabling it to collect a premium or capture a larger share of rapidly growing global LNG trade remains to be seen.

This story caught my eye because it fit neatly with one theme of a webinar in which I recently participated at The Energy Collective. Although most greenhouse gas emissions from fossil fuels occur at the point of combustion in a car, truck, plane, train, ship or power plant, the upstream emissions aren't insignificant and can be reduced in some cases by employing renewable energy in their production. Examples I cited in the webinar included an enhanced oil recovery demonstration project in California that employs concentrated solar power to produce some of the steam used to extract oil from an old oil field, and another project to extract geothermal energy from hot fluids brought to the surface as part of the oil production process.

The case that B.C. makes for reducing greenhouse gas emissions from LNG production by relying on the province's bountiful hydro- and wind power resources is a different application of the same principles. That's because whether the energy for cooling billions of cubic feet per day of natural gas to its liquefaction temperature of -162ºC comes from a local electricity grid or from burning some of the gas in a dedicated cogeneration facility, in most locations this adds significantly to the lifecycle emissions of the LNG. One study that I found on the California Energy Commission's site, produced by PACE Consultants, indicates that liquefaction accounts for around 10% of the lifecycle emissions of LNG converted to electricity in an efficient gas turbine power plant. Eliminating those extra emissions by powering a liquefaction plant with green electricity would bring the emissions from LNG much closer to those from pipeline natural gas and increase its advantage versus coal.

So now what B.C.'s LNG projects need is customers in Asia who will put a premium on "cleaner LNG"--presumably in countries that have committed to large greenhouse gas emission cuts that they can't achieve with indigenous fuels. Japan comes to mind, but I'm sure there are others. These customers would also have to be willing to deal with the longer voyage times from Kitimat, northern B.C. to Asia, compared to competing projects in Australia. That extra 1,000 miles or so translates into higher freight costs and a larger tanker fleet, along with somewhat higher emissions from transportation--though not enough to negate the liquefaction advantage. With so many new and expanding LNG projects around the world competing for market share, I'll be very interested to see whether B.C.'s new strategy pays off.

Rabu, 18 Januari 2012

Playing Games with US Energy Security

Well, that didn't take long. The administration issued its decision denying the Keystone XL Pipeline application today, rather than using the remaining 34 days in the Congressionally mandated timeline to attempt to find a better solution. This is a prime example of what frustrates so many Americans of all political affiliations about how the nation is being governed. If you read the carefully drafted press release from the State Department, which had been given responsibility for determining whether the pipeline was in the national interest, it explicitly states that today's decision was neither final nor on the merits of the project. Implicit in this document is that today's move is exactly that, the latest move in the game that the President and Congress have been playing with a project large enough to affect the energy security of this country for decades to come. It is unseemly, and it didn't have to be played this way, despite the White House's protests that the 60-day timeline was unrealistic--after three years of study.

Here's a different statement the President could have issued, which might not have satisfied either side of the argument but would have left his administration looking like one with a bias for action and answers, instead of delays and obstacles:

"Today I have instructed the State Department to issue a pro forma finding against the application for the Keystone XL Pipeline project, with the clear understanding that this decision is a temporary expedient to provide the time necessary to resolve the remaining outstanding issues, as quickly as humanly possible. I hereby commit that my administration will do everything in its power to work with the government of Canadian Prime Minister Harper and with Governor Heineman of Nebraska to reach a mutually satisfactory solution that will allow this critical project strengthening the energy bonds between our two nations to proceed, while finding meaningful ways to address the concerns that many Americans have about the project's potential local and global environmental impacts. With renewed tensions in the Persian Gulf and with millions of Americans still out of work, we can do nothing less, even as we remain committed to protecting the environment that benefits us all. I have directed Secretary Clinton to work closely with Energy Secretary Chu and EPA Administrator Jackson and with their counterparts in Canada to develop a solution that addresses these needs, and to report back to me within 90 days with its outline ."

I don't diminish the political challenges of issuing such a statement when key parts of the President's support base have been so vocal in opposing this project. All you have to do is look at the latest set of talking points against the project from the Natural Resources Defense Council (NRDC). As disappointingly illogical a mishmash as they may be, based on misinterpreted data and a bizarre defense of cheap oil for the Midwest, they still reflect heartfelt, even visceral, reactions to the Keystone project--or more accurately to the oil sands development that it was expected to enable. Fair enough. I respect their right to an opportunity to provide input and guidance toward an eventual compromise, but not to a veto over US energy policy.

Nor should the opponents of the Keystone XL project fool themselves. Today's decision was guided by expediency, just as the future, possibly quite different decision for which the door was left open would be, perhaps at a point in time when the political calculus has shifted in favor of the project due to some external event. A decision based on principle would have looked quite different. "The Department’s denial of the permit application does not preclude any subsequent permit application or applications for similar projects." Whose move is it now?

Senin, 22 Agustus 2011

Oil Sands Anxiety Is Overblown

As I was catching up on a two-week backlog of news after my vacation, I ran across a New York Times editorial with the promising title of "Tar Sands and the Carbon Numbers." Thinking that perhaps the Times might have woken up to the necessity of comparing the lifecycle emissions from oil sands to those from other crude oils, I was disappointed to find its editors perpetuating the common misunderstanding concerning these emissions when viewed only from an oil-production perspective. That's a shame, because it results in the scape-goating of Canadian producers and pipeline companies while conveniently avoiding the soul-searching that ought to accompany a clear understanding that, whether we're talking about oil sands or conventional oil imported from any other source, the vast majority of the lifecycle emissions will occur here, when the products into which these oils will be refined are consumed. It is also condescending toward the sovereign responsibility of our NAFTA neighbor for managing their national emissions under the Kyoto Protocol, which they ratified but we didn't.



The pending State Department review of the proposed Keystone XL pipeline project linking Alberta's oil and oil-sands projects to Gulf Coast refineries has become a hot-button issue for US environmental groups. Producing oil from oil sands, which were more commonly called tar sands until that became a term of disparagement, certainly involves more environmental consequences than most--though not all--conventional crude oils. Since US groups haven't been very successful targeting the oil sands projects in Alberta, where they contribute significantly to Canada's oil output and overall economy, the export pipeline has become a target of convenience. From my perspective, the angst about pipeline safety and acidic bitumen is mainly a red herring; the oil industry routinely handles other crude oils of similar sulfur levels and acidity, usually by adjusting the metallurgy of the pipes and vessels involved. The real issue here is greenhouse gas emissions, which the Times and most other critics of oil sands narrowly compare to those from producing conventional oils.



The Environment Canada report cited by the Times indicates that oil sands production and upgrading result in emissions about 70% higher per barrel than for the production of Canada's average conventional oil. That's in the range of other estimates I've seen. However, what the Times fails to mention is that such "upstream" emissions only account for a fraction of the total lifecycle emissions attributable to any oil. By far the biggest portion--even for oil sands--comes from the combustion of petroleum products by end-users.



So if at least 70% of the emissions from oil sands crude occur in the US, rather than Canada, and if the lifecycle (well-to-wheels) emissions from oil sands only average around 15% higher than for the average US refinery's crude slate, while emitting little or no more than some commonly imported crude oils from other countries, are the XL pipeline's opponents exaggerating its impact? I believe they are, unless they're also willing to take on imports of consumer goods and other products from higher-emitting countries like China. That would be difficult to justify to the World Trade Organization, considering that the US doesn't have a statutory limit on its own greenhouse gas emissions. It might also put us in an awkward position with regard to our exports to countries that have adopted strict emissions reduction targets.



Meanwhile we shouldn't forget that under UN agreements it is Canada that bears responsibility for the extra emissions that oil sands generate in Alberta. The Environment Canada report indicates that oil sands are likely to contribute 11.7% of Canada's GHG emissions by 2020, up from 6.7% in 2005, when Canada's share of global GHG emissions stood at less than 2%. The expected increase in oil sands output would account for essentially all of the projected 7% rise in Canada's emissions over that interval, an amount equivalent to 0.1% of current global emissions. The means by which Canada could address those incremental emissions include improved technology, offsetting cuts in other sectors, emissions trading and offsets purchased from other countries, or the Canadian government could simply choose to restrict oil sands output. Whatever path they choose, we have plenty of our own emissions to consider without going into a tizzy over a Canadian sector that currently emits roughly as much as US livestock waste management.



Trying to control the emissions from oil sands by blocking this pipeline is a perfect illustration of the difficulty of attempting to tackle a complex global environmental problem by focusing on isolated measures that only bear indirectly on the outcomes that matter. The weakness of the Times' argument is reflected in the following sentence, referring to Canada's policies: "The United States can't do much about that, but it can stop the Keystone XL pipeline." The implication seems to be that we would be better off if Canada exported its oil sands to developing Asia, their next best market, relieving us of any associated guilt, even if it made no actual difference in global emissions. I hope that when the State Department decides this matter, it gives appropriate weight to the fact that, other than fuel economy improvements in the US car fleet, our energy ties with Canada represent the single most effective energy security measure undertaken by this country since the oil crises of the 1970s.

Selasa, 12 April 2011

What's the Alternative to Oil Sands?

I can recall when technologies like oil sands and coal gasification were commonly referred to as alternative energy, with the same high-tech aura now attached to solar power and advanced biofuels. Much has changed since then, not least our perspective on climate change and the greenhouse gases that contribute to it. It's no longer possible to consider Canada's oil sands production and the means of transporting it without a serious examination of the environmental consequences, both at the source and along its journey to market. However, while I understand that perspective, the reaction to the proposed Keystone XL pipeline seems disconnected from the reality that crucial supplies of Middle Eastern oil suddenly look much riskier than they did. We should certainly weigh the costs and benefits of oil sands carefully, but the missing element from this conversation is the question of what the alternative would be if we ruled out more oil sands imports.

This train of thought began with a sobering analysis of the energy implications of the unrest in the Middle East by Amy Myers Jaffe of the Baker Institute at Rice University in Houston. The challenge she highlights is much subtler than the risk of exports from countries like Libya being disrupted for a few months or even a few years. Existing spare capacity in other producing countries can cope with some of that, although a portion of that capacity is in other countries that could be just another domino or two down the road, while the rest is in Saudi Arabia, which might not be immune, either. Yet if the worst case is the disruption of exports, we have a substantial Strategic Petroleum Reserve to fall back on. Prices might rise significantly, but the prospect of no fuel at your local gas station at any price remains remote for now.

However, as Ms. Jaffe demonstrates, much of the incremental oil production capacity on which forecasters have been relying to meet additional oil demand over the next two decades, and to backstop declining production in non-OPEC countries, must come from the same region that is now in turmoil. And as the charts in her presentation show, revolutions--democratic or otherwise--rarely result in higher oil output. If new governments or chastened existing governments don't invest in developing that extra capacity, then Peak Oil won't just be a theoretical construct in geology; it will be a very real outcome in geopolitics, and one that strategic inventories like the SPR would be unable to mitigate.

We have had a tendency to view Canada as the Saudi Arabia of the north. Considering that we now receive more oil from there than from all the countries of the Persian Gulf combined, and that our NAFTA partner's proved reserves of 178 billion barrels are second only to those of the Kingdom, that's not unreasonable. As recently as 2002, though, Canada's oil reserves were under 6 billion barrels, before the oil sands could be booked as reserves in large quantities. Without its oil sands, Canada would be just another mature oil province with declining conventional output. The question of how rapidly to develop those resources, and whether to export their output outside North America to any significant degree, is currently a hot topic in Canadian politics. The pipeline to transport this oil to Kitimat, British Columbia for export to Asia seems to be subject to a similar debate to the one we're having in this country concerning the Keystone XL line from Alberta to the Gulf Coast. But what if these projects didn't go forward? A world without oil sands might have a little less in the way of greenhouse gas emissions, but it would also have much higher oil prices, and those prices would be more volatile.

So what are the alternatives to these "dirty tar sands", as environmentalists now invariably refer to them? Well, if you're been reading my blog for a while, you know that wind and solar power don't enter into this discussion, because very little electricity is used for transportation and very little oil is used for generating electricity, outside of the developing world and now post-Tohoku Quake Japan. If we don't have access to oil sands imports, then the only other near-to-medium term options for reducing our oil imports from less stable suppliers involve more domestic oil production, more efficient vehicles, and more biofuels production.

Unfortunately the latest Department of Energy forecast incorporating all of those options still leaves us importing nearly 9 million barrels per day of oil in 2025. Without a significant portion of it coming from Canadian oil sands, we will still be forced to rely on imports from places like Venezuela and the Middle East, some of which aren't much more environmentally sound than the oil sands production. And that assumes that all the domestic production in these plans actually materializes. Turning up our noses at both offshore drilling and oil sands is pretty much mutually exclusive. (Or for that matter, shale gas and oil sands, even though these are different forms of energy.)

As for biofuels, we've already got just about as much corn ethanol as we can handle for many reasons, and the more advanced variety has not been especially cooperative in turning up on schedule. Replacing the oil sands capacity that the proposed Keystone XL pipeline could deliver would require more than 23 billion additional gallons per year of ethanol, or 180% of last year's US ethanol output. That figure exceeds the entire 2022 cellulosic and advanced biofuel target under the federal Renewable Fuels Standard. Biofuels are an important part of our energy mix, but the time when they could make oil sands crude unnecessary is still a long way off.

Americans are conflicted. We complain about $4 gasoline, and we're uneasy about another military intervention in the oil patch of the Middle East and North Africa, but then we throw obstacle after obstacle in the path of one of the few options that can provide us with a larger supply of reliable fuel from North America. No matter how sympathetic I am with communities that don't want the new pipeline to pass through or near them, or with concerns about the 17% increase in lifecycle greenhouse gas emissions that oil sands represent, compared to conventional oil, closing our border to additional imports of oil sands crude can only undermine US energy security, at the worst possible time.

Selasa, 06 Juli 2010

Putting Energy Security At Risk

In catching up on a week's worth of news after my vacation, several stories caught my eye. The US Congress is apparently renewing its effort to cut tax breaks for the domestic oil & gas industry, while the administration intends to reinstate the offshore drilling moratorium that had been set aside by a federal judge in Louisiana. At the same time, 50 members of Congress have written to Secretary of State Clinton asking her to block a new pipeline to carry crude produced from Canadian oilsands to US refineries. However, even when you factor in the energy contribution of new initiatives such as the $2 billion in loan guarantees for solar power projects announced last week, the net result of all of this would be to undermine two of the central pillars of US energy security for the last several decades: producing more energy here at home and importing energy preferentially from stable and friendly neighbors like Canada and Mexico. For all the lip service about energy independence prompted by the Gulf Coast oil spill, these actions would ultimately make us more reliant on OPEC and unfriendly regimes.

Start with the industry subsidies, which Representative Blumenauer (D-OR) indicates are worth $6 billion per year. Setting aside the important context that these represent reductions in industry tax rates that even after these benefits are still higher than those most other US industries pay, this works out to an average of just $0.18 per million BTUs worth of domestic petroleum and natural gas production, or about $1.05/bbl. Compare that to $18.90/bbl in subsidies for corn ethanol and the equivalent of $2.60 per million BTU for electricity from wind and other renewable sources. As I've noted many times, oil & gas subsidies amount to a lot of money--though ethanol subsidies will come close to exceeding them in aggregate this year--not because they're overly generous, but because the scale of oil & gas still dwarfs all renewables combined.

I'm not a big fan of any of these subsidies, and I think it's high time that the ethanol subsidy, in particular, be brought more in line with its net energy contribution. At the same time, if we want a domestic energy industry that can make a meaningful contribution to covering our needs, then some level of tax breaks and other benefits appears necessary. And while the oil & gas industry is certainly mature and profitable, relative to biofuels and renewable electricity, it is also a global industry that competes with producers around the world, many of which are owned by the same OPEC members that have set the current oil price through effective constraints on their own production. And when drilling eventually resumes off the Gulf Coast, it is guaranteed to be much more costly. Adding higher taxes to these higher costs and tighter regulations must inevitably result in fewer wells being drilled and more oil imported--and from where?

Not from Canada, if the signers of the oilsands letter get their way. Oilsands production raises legitimate environmental concerns, both locally and globally. Producing oil from these deposits results in higher greenhouse gas emissions, though environmentalists usually fail to mention that tripling the emissions from production, compared to conventional oil, raises the total lifecycle emissions of the oil by just 17% compared to the average barrel refined in the US, because the vast majority of those emissions occur when the resulting petroleum products are burned, not when the oil is produced or processed. Now, a 17% increase in emissions is not nothing, but it must be weighed against two other factors. First, if oil prices are high enough, this oil will likely be produced anyway, even if we don't take it. Canadian companies have already signed deals to send oilsands crude to China, and they would do more of this if we turned up our noses at the stuff. Secondly, there's no guarantee that the oil we'd import from elsewhere would result in substantially lower emissions. That's particularly true for crude produced from heavy oil deposits in Venezuela and elsewhere, which average 14% higher lifecycle emissions.

Canada has been our largest foreign oil supplier for years, but with oilsands making up a steadily-growing share of Canadian output, restrictions on our oilsands intake would torpedo that relationship. With Mexican production going into steep decline, we would have to import more from Russia and the Middle East to make up the difference. That doesn't sound like a recipe for energy security to me.

Nor can greener sources close this gap any time soon. If you doubt that, take a look at Abengoa's Solana concentrated solar power project, which the Department of Energy just awarded a $1.45 billion loan guarantee. This technology uses the sun's energy to generate steam for electricity production, and its thermal storage allows it to do so more reliably, and over a longer portion of the day than photovoltaic cells. This is one of the most promising renewable energy technologies available, though at an effective cost of over $5,000 per kW of capacity it's hardly cheap. Yet when you convert its annual power output into equivalent barrels of oil (via the quantity of natural gas it would likely back out) it works out to less than 3,000 barrels per day. Replacing the energy contribution of Gulf Coast drilling or Canadian oilsands imports would require hundreds of such facilities, along with tens of millions of electric cars to enable their output to substitute for oil, very little of which is used to generate electricity in the US.

While renewable energy sources must inevitably meet a growing proportion of our energy needs in the years ahead, for the present US energy security still hinges on oil, which accounts for 92% of our net energy imports. If the Congress is serious about enhancing US energy security, then it should focus its efforts on reining in consumption, rather than erecting further barriers to oil produced here in the US or by our most reliable foreign supplier.

Selasa, 16 September 2008

Climate Change and Unconventional Oil

While Americans are focused on the debate over expanded oil drilling, which might eventually add up to a million barrels per day of incremental oil production, a much larger expansion is underway north of the border, tapping Canada's oil sands reserves. Today's Financial Times (subscription required for full access) reports that environmentalists and socially-responsible investment funds are meeting today with Shell and BP, concerning the environmental and financial risks of the greenhouse gas emissions inherent in oil sands production. This has important implications for future oil supplies, particularly with oil prices falling to a level that might threaten further investment in oil sands, even without considering the cost of mitigating or offsetting the sector's CO2 emissions.

Worries about the greenhouse gas (GHG) emissions from oil sands operations are not new. Ten years ago my former company approached one of the large Canadian producers about employing Texaco's (now GE's) gasification technology to turn byproduct petroleum coke into gas to fuel the oil sands extraction process, incidentally creating an option for the CO2 to be sequestered in depleted oil and gas reservoirs. Neither the economics nor the consensus for action on climate change was sufficient to move ahead, at the time. But with Canada imposing stricter rules for industrial sources of CO2, and with a new global agreement on climate change in prospect at the end of 2009, that perspective may be shifting.

According to the FT, the groups in today's meeting in London are focused on the financial risks associated with emissions from oil sands--emissions that are several times larger than those from conventional oil production. Some are calling for a moratorium on new oil sands and oil shale projects. If oil were still over $120/bbl, that argument would carry little weight. Even if the most extreme estimate provided by Greenpeace were correct, suggesting that oil sands extraction emits 100kg more CO2 per barrel than conventional oil production, that would equate to under $4/bbl of extra cost, based on the price of 2012 emissions credits on the European Climate Exchange at current exchange rates.

Two factors render that figure more significant than it might appear. Falling oil prices are pushing new oil sands projects close to their breakeven point, according to Total, hampering the industry's ability to mitigate emissions. At the same time, the sheer magnitude of the oil sands expansion makes these emissions too large to ignore. The latest forecast from the Canadian Association of Petroleum Producers indicates that oil sands output should increase from 1.2 million barrels per day (MBD) last year to 2.8 MBD in 2015 and 3.5 MBD in 2020. Without making expensive changes in operations to reduce emissions and capture and store CO2, or buying emissions offsets, oil sands operations could increase Canada's current GHG emissions by as much as 10%. As a signatory to the Kyoto Protocol, the Canadian government cannot just look the other way, while these emissions mount.

There are many areas in which the goal of improving energy security aligns with reducing GHG emissions, including improved efficiency and more use of renewable energy. But oil sands--and by extension oil shale--represents a clear conflict between our desire to reduce our dependence on Middle Eastern oil and the need to halt the accumulation of greenhouse gases in the atmosphere. And with oil nearing $90/bbl, a $4 increase in production costs to manage CO2 could stall new development and reduce future oil output by enough to tip the global supply and demand balance even further in favor of OPEC and Russia. Unless the next administration is willing to sit down with our NAFTA partners to discuss a comprehensive North American approach to both energy and emissions, this matter will ultimately be settled in Ottowa, where neither the US Congress nor President can offer more than friendly advice.