Pushing Geothermal Power in Alberta  

Posted by Big Gav in , ,

Tyler Hamilton at Clean Break has a post on a push to use geothermal energy in the Canadian province of Alberta - Geothermal in Alberta finally getting some push.

It’s still a long shot, not technologically as much as politically, but more voices are beginning to speak out about the potential for geothermal heat and power generation in Alberta, a province that’s heavily dependent on coal and where the oil sands rely on clean gas to produce the dirtiest of liquid petro products.

The Pembina Institute came out with a report this month that explores the many ways Alberta could transition away from coal and toward more sustainable and cleaner forms of electricity generation. I was most impressed with the section on geothermal, given that in Canada there hasn’t been much interest in this renewable source of power, with the exception of yours truly and a dozen or so industry and academic folks who are trying to draw attention to this immense opportunity.

According to the Pembina report, “very little information has been gathered on the size of Alberta’s geothermal potential,” however “research data that is available shows that the potential is enormous.”

Pembina says there is an estimated 21 billion gigawatt-hours of energy released every year below the surface of Alberta at depths of less than 5 km. “Even with the conservation assumption that only 0.5 per cent of this potential is recoverable, it represents the equivalent of roughly 14 million megawatts of generating capacity.” That, it goes on the point out, is more than 1,100 times the current total installed generating capacity of Alberta. This doesn’t even include depths greater than 5 km, which could be tapped using enhanced or “engineered” geothermal systems (EGS).

When Pembina explores the barriers to implementation, we get explanations such as “lack of awareness” and “uncertain resource” because of insufficient research and data. There is also the issue of uncertain costs, not so much with conventional geothermal but with the use of EGS. Another barrier is the challenges of drilling to depths of several kilometres.

The first two barriers, of course, shouldn’t be there in the first place. There’s no reason why we can’t raise awareness and conduct more research around this promising form of renewable energy. Sadly, it’s not on the radar of federal politicians (though, to their credit, some bureacrats are working away in the background).

3 comments

"This doesn’t even include depths greater than 5 km, which could be tapped using enhanced or “engineered” geothermal systems (EGS)."

And why do you think you need EGS to go deeper than 5 km.?

Because everybody says so? :-)

Google and Ormat are among the partners conducting EGS experiments with a non-productive shallow well in Ormat's Desert Peak producing field. The permeability of the well was insufficient for production.

Germany is drilling quite deep for low temperature geothermal brines. Among other things, they are utilizing the kalina cycle pioneered in Iceland for efficient use of such resources for geothermal power. Legend, of course, has it that all geothermal assets in Iceland are splendid, hot resources.

Thank you for your posting. Indeed Alberta should be investing in geothermal power but so should the rest of Canada and the rest of the world too.

Best, Terry

I'm all for low temperature geothermal power as well as EGS - see here for a detailed write up on the topic :

http://ourcleanenergyfuture.blogspot.com/2008/11/low-temperature-geothermal-power.html

"I'm all for low temperature geothermal power as well as EGS"

Mighty fine, Big Gav, but something odd has been happening in your upside down land :-) of Australia.

Understand I am only relying on press releases by folks that seem to be able to pump a lot more than steam.

Seems Panax has discovered and is developing a sizable geothermal resource of the regular kind. They claim they will be first to market - and wouldn't seem unlikely if the rest of the story is true.

What gives?

Lot of that kind of thing going on.

More sophisticated prospecting tools is what gives.

And maybe that is what is most important of all.

Just a thought.

Best, Terry

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