Showing posts with label nl hydro. Show all posts
Showing posts with label nl hydro. Show all posts

Sunday, June 10, 2007

Supply Chain: The Transportation of Energy

This piece was previously published earlier this year in the energy supplement of Atlantic Business Magazine.

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The curious paradox of the energy market is that supplies are seldom located very close to demand; the industry term for that is stranded. So, as an energy-rich region develops its sources, the challenge becomes what to do with the stranded energy - how to get it to customers

The practical problem for Atlantic Canada as an energy supplier is that it lies some distance from the largest energy-consuming markets.

The solution depends on which form of energy you want to sell. The obstacles are variously technical, economic and/or political.

Natural Gas

Natural gas has a well-developed transportation infrastructure in the Maritimes. The Sable Offshore Energy Project, for example, transports natural gas by underwater pipeline to a shore facility for processing and then to the US through a larger pipeline network into Maine. That’s possible because of the proximity of Sable to land, the absence of iceberg hazard to the pipes and the relatively short distance to the US.

In the Newfoundland and Labrador offshore, estimates of discovered gas range up to 9 trillion cubic feet (tcf) on the Grand Banks and the Labrador shelf, with a possible additional 36tcf or more in undiscovered conventional resources. Undiscovered unconventional resources consist of gas that is known to lie underground and has been penetrated by drilling, but lies in rock types that have not yet seen large scale commercial production.

The substantial distance from source to closest landfall and the risk of iceberg scour are impedients to a sea floor pipeline to on-shore processing facilities. Generally, the solutions proposed so far focus on sea-based transportation of either LNG (liquified natural gas) liquified at sea or CNG (compressed natural gas).

LNG is natural gas cooled at the production source to 160 Celsius to reach a liquid state. At 1/600th of its original volume, it is then shipped to a re-gasification plant closer to market. There, it is returned to gaseous form for delivery to customers, generally through pipelines but also by truck. It is the international standard for transportation and shipping of natural gas.

But LNG facilities for liquification and re-gasification are enormously expensive, and LNG has never been produced on an offshore platform.

CNG, on the other hand, is simply natural gas that is compressed to reduce volume but remains in gas form – essentially form ready for consumer use. CNG is easier to produce and easier to handle. Of course you produce it – it’s a product; the word is being used in the general sense of producing any product and not in the specialised oil and gas, sense. CNG vessels can fill up at the field, using a relatively low cost offshore mooring buoy, and then steam directly to market without needing re-gasification. This is what the literature says. . they mean low-cost compared to a $500mill+ liquification facility

There remains considerable difference in opinion regarding Atlantic Canada’s supply forecasts to 2020. These are dependent on international factors such as gas prices, stability of supply and international demand as well as domestic factors such the cooperation of local political actors. The forecasts range from no production to an optimistic possible high of 2.3 Bcf/d in 2020.

Although commercial development of Newfoundland and Labrador’s stranded gas is not anticipated before 2020, the industry has been exploring transportation options and opportunities while the provincial government is busily finalizing a natural gas royalty regime.

Several companies in particular are studying natural gas transportation and have different takes on it.

Newfoundland LNG takes a conventional approach and has announced plans to build North America's first LNG storage and transshipment facility at Grassy Point on Placentia Bay in southeastern Newfoundland. This St. John's based company is expecting a burgeoning market for LNG transshipment facilities for overseas imports entering the North American marketplace because of the economics of the LNG trade in the Atlantic Basin.

The facility would include eight 160,000 cubic metre storage tanks, three jetties with berthing facilities capable of mooring 265,000 cubic metre LNG cargo ships, and a tugboat basin along one of North America's deepest ice free ports. It will not include re-gasification facilities because of the lack of local end use markets.

The project, which is expected to accommodate up to 400 vessels per year, is slated to begin construction next summer and come into service in late 2010.

An emerging player in the international gas transport business is EnerSea Transport of Houston, Texas. They claim to have developed the first cost effective CNG marine transport and storage system. Called VOTRANS (Volume Optimized Transport and Storage), the prototype is an ocean going gas delivery system comprising large diameter pipes contained within insulated structures integrated onto specially designed and constructed ships or barges. Their Atlantic Canadian presence is the St. John’s based EnerSea Canada, a highly active player in the Newfoundland and Labrador R&D community.

A home-grown variation on CNG is a concept championed by Trans Ocean Gas, also based in St. John’s. They have designed and patented fibre-reinforced modular plastic pressure vessels that can be fitted on ships, barges or trucks. Destructive burst testing on full scale fibre reinforced plastic pressure vessels will be conducted at Atlantic Steelworks facility in Sheet Harbour NS this fall.

The company has also announced an extension to their concept taking out patents for a plastic vessel designed to transport pressurized LNG, a high density liquefied natural gas form created by combining low temperatures with relatively low pressures.

Whatever the transportation solution adopted by the market factors such as strong natural gas prices over the long term, establishment of a royalty regime, continued exploration of new basins, uncertainty of LNG imports to the U.S. from overseas and the province's relative proximity to the U.S. market, all bode well for the development of the province's natural gas reserves.

Hydro

In the long term, the region’s largest single source of new energy is the proposed Lower Churchill development in central Labrador. This recently announced $9 billion hydro-electric project would produce roughly 4000 MW of energy every year that the facility remains in working order and water continues to flow.

Unlike oil, this source of energy is virtually infinite. Its operating costs are comparatively low, although the capital costs are comparable to offshore oil or higher.

But the question of getting it to market is fraught with political and technical challenges and is realistically limited to three options: selling generated power to Quebec, wheeling it through Quebec or developing the co-called “Anglo-Saxon route”.

The political problem with selling Lower Churchill power to Québec is the infamous 1969 Upper Churchill pact between former Newfoundland premier Joey Smallwood and his Québec counterpart, Jean Jacques Bertrand. At the time, Québec refused to provide a transmission right of way to the US.

A deal was signed requiring Newfoundland to sell power to Hydro Québec at a predetermined low price while Québec was free to resell the power to American buyers for whatever price the market would bear. When the 1970s energy crisis and inflation caused prices to soar, the result was a $14 billion windfall for Quebec between 1976 and 1995, while Newfoundland made do with $2 billion in net profit according to Newfoundland government estimates. The deal expires in 2041.

That history ensures that any deal that involves selling power to Québec will be a tough political sell in Newfoundland and Labrador. Compounding this difficulty is a declaration by Premier Williams that there could be no Lower Churchill deal with Québec unless Upper Churchill was revisited. But after more than 20 years of failed interprovincial litigation aimed at just that end, Québec remains disinclined to re-open the previous deal.

The second option, wheeling the power through Québec, is being actively pursued. Two choices present themselves. The first is that Québec would agree to transmit the power along their own lines for a fee. The Newfoundland and Labrador government has submitted a request to the government of Québec for quotes on power transmission.

However, because Québec is working to develop its own hydro projects, there may be no capacity left to carry additional power from Churchill Falls. That leaves the option of Québec granting permission for Newfoundland and Labrador to construct transmission lines through the province to the US or Ontario. Last estimates put that additional capital cost at $3 billion.

Finally, there’s the much-debated “Anglo-Saxon route” or Maritime route. First explored by Smallwood in 1964 to thwart Québec’s ‘revenge of geography’, this option involves running power lines east through Labrador, under the straits to the northern tip of the island of Newfoundland, down the west coast, under the gulf straits to the Maritimes and then finally into the US - all in order to bypass Québec territory.

Smallwood’s best estimate concluded that this route would cost almost $1 billion and would raise the price of electricity so much that it could no longer be sold at a competitive rate in the US market. No doubt today’s costs would be much higher.

And so Atlantic Canada grapples with the energy paradox. Having a source, even in abundance, is only the first step to viable development. There must also be effective ways of moving energy to market, so that it is competitively priced when it get there. Fortunately, there are always people, companies and universities in Atlantic Canada ready to generate and invest in innovative solutions to do that.

Friday, March 30, 2007

Hydro boss MacDonald blows smoke

Mr. Dean MacDonald gave a speech to the St. John's Rotary on Thursday, March 29. While it didn't receive the same buzz as the Wescott presentation at NOIA, it was more significant in a numbers of ways.

Over the years I've gone to lots of speeches by chairs of one crown corporation or another and they are generally sedate affairs.

It's worth reminding that these positions are not filled by people who have moved up through the ranks - they are not veterans of the industry. Therefore the chairs of the NL Housing Corporation and the NL Liquor Corporation are not distillers or home builders.

In fact these positions are political appointments who are given the task of ensuring that their organisation fulfills the policy role set out for them by government.

With that in mind, it's worth examining the basic themes of Mr. MacDonald's speech as covered by the local media.

The speech was mainly a spirited defence of the undersea electrical transmission route for Lower Churchill power and a general dismissal of the nay-sayers who question that proposal.

Sometimes called the Anglo-Saxon or Maritime route, this plan would see Lower Churchill power wheeled away from the Quebec border towards the coast of Labrador where it would be transmitted undersea to the island of Newfoundland. From there it would be transmitted down the west coast through another undersea line to New Brunswick.

Mr. MacDonald justifies this position by arguing that although it would add another billion of so to the cost of the project as a whole, that's money well spent because:
"The cost is such a damn good cost to not have to depend on anybody. To maybe pay a little more to build it, but when you sell it, we don't have to pay a toll charge on the way."
The costs to build the infrastructure for this route was estimated in 1968 as roughly $1billion. Accounting for improved technology and increased construction costs, the current price tag has increased to at least $2billion.

This was rejected in the 60's because it made the cost of power uneconomical to the customers.

MacDonald went on to note that there are many locations in the world with subsea transmission of power over longer distances.

At this point it's worth taking a look at a presentation called Subsea Power Transfer - What is the challenge delivered by Svend Rocke of ABB offshore Systems at the Applied Technology Workshop - Technology for for the Next Generation Subsea Systems in Oslo, Norway on February 11th, 2003.

When it comes to the technology and engineering of undersea power transmission systems, ABB offshore Systems are as good as it gets.

In a nutshell, his presentation makes it pretty clear that undersea power transmission is do-able but is the preferred option only when there is no alternative land route available. The reasons for using subsea transmission as a last resort are
  • complexity of the components;
  • increased costs of construction; and
  • difficulty in effecting repairs
In general it's hard to escape the idea that it's not really a good idea to run high voltage power lines near or under salt water unless you really have to.

Are there locations in the world with subsea transmission of power over longer distances than we are talking about for this province? Yes there are.

But in no case are we talking about this much power being transmitted when there was an alternate land route available.

So if undersea transmission is the last resort, why does Mr. MacDonald give it so much profile? The answer, I think, can be found in an interview given by Mr. Cy Abery, former President to NL Hydro in the Independent in May 2006. In that story, it said:
"We always put that out there to make it sound like we had options," Abery says. "But everybody in the business knows that'’s foolishness. It sounds good in the newspaper. Joe Smallwood started that back in the 1960s calling it the Anglo-Saxon route. It was crazy then and it's crazy now."

Abery says any talk of a Maritimes route doesn't fool Hydro Quebec.

"They just smile," he says. "I mean you're in the middle of Labrador. The only border we've got is with Quebec. So you've either got to sell it to Quebec, or go through Quebec. And there's no reason you wouldn't sell it to Quebec. Their money is just as good as anybody else's money as long as you got enough of it."

Abery says Newfoundland could sell the power to another customer, in Ontario say, and simply pay Hydro Quebec to wheel it across its transmission lines. The fee for doing it wouldn't be unreasonable, he notes.
So the story of subsea transmission of power to avoid Quebec seems to be a smoke and mirror ploy before coming to an eventual commercial/political accommodation with Quebec and Hydro Quebec.

That kind of political goal fits in neatly with the rest of his speech which was purely political and had large parts having nothing to do at all with NL Hydro or electrical issues.

It's not often you see the Chair of a crown-owned electrical utility spray as much testosterone in a room as he did tossing out lines like "I'm mad as a Newfoundlander and Labradorian about what's gone on here. There may be a price to pay in the short term, but we have to draw a line in the sand" and "I'm ready for this war."

I can't help but wonder how exciting those Hydro Board meetings really are.

If the subsea transmission path ever does get built, it will be hard to view it as a technological marvel. In reality, it will be an expensive triumph of political spite over the ability to reach a commercial and political accommodation with our neighboring province.

That should be a bitter pill to swallow for an administration of self-styled world class negotiators.