Coal would not be better, Kenneth. The exhaust clean up refers to compounds of elements such as nitrogen (NOx) - not carbon dioxide - and this is technology also commonly found on coal-fired installations. While you are correct that pound for pound coal is more calorific, unlike coconut husks it is not carbon neutral. The coconut husks would previously been a disposal issue, rather than a fuel resource.
Ms. Van der Elst says it is deep geothermal "pumping up hot water from aquifers of over 1500 m deep, which is reinjected after cooling via a second well."
Hope that clarifies.
Thanks for your thoughtful comments, Stan.
However, I am not sure I agree with your statement that it will never happen.
I dare say many people cited the high costs of the early mobile telephone, or the earliest motor cars, while they expressed similarly negative sentiment. And to some extent they were right. Early cars and phones were clunky, expensive and generally a bit rubbish. But today we all know that over the years costs have fallen to the point where now just about everyone has one. And certainly no-one questions whether they are useful - even essential - components of modern life.
Load shedding or interruptible supply contracts are another tool which can be used to provide flexibility - I am not advocating simply switching off communities but I see no reason why some organisations couldn't shift peak loads to more convenient - in terms of power supply - periods. They don't necessarily have to go out of business to do that and may even secure a competitive advantage with low-cost power in return for that flexibility.
Rather than investing in hardware to keep German power out of Poland, as you claim, perhaps an approach which would enable Poland to maximise use of Germany's excess capacity (again low cost) is possible rather than impossible?
My point is that by creating a mechanism which incentivises 'stability' we are able to accelerate the move to successfully address some of these undoubted variability issues. The solution will take, I believe, a mix of technologies and techniques, some of which have probably not been invented yet.
But then, never is an awfully long time.
You're absolutly correct Stan, load shedding is the wrong term, I should have said interruptible supply contracts. Apologies.
Thanks for your comment Paul. In fact the IEA CSP Technology Roadmap cites a total figure of 11.3% of global electricity production, given appropriate support, by 2050. I am sorry for my less than precise reporting.
I agree, and look forward to seeing the come to pass in the coming years.
Thanks Martin, more details on this project may be found here:
You raise a valid point, Joel, but the point of this type of article is to open the debate rather than to limit the discourse to those with an obvious stake in the success of the industry.
Though evidently those with an intimate knowledge of the business are more likely to hold an opinion, we nonetheless invite and welcome any response to the same question - from those with a less favourable view too.
Well there are subsidies and then there are subsidies, Rolf. Putting the environmental argument to one side for a moment, I see oil is now reportedly trading at an 18 month high, something over $87/bbl.
In considering the costs of developing EV infrastructure, the likely costs of maintaining the oil-based status quo and continued reliance on such a volatile resource must also be weighed up.
While this article certainly does focus on large central inverters, the potential impact of microinverters is acknowledged in para 9, referring to an additional box panel which appeared in the magazine.
Please do follow the link at the foot of the piece which will direct you to a recent REW anlaysis of the microinverter sector.
Apologies for the typo, you are correct Koh-i-Noor, the figure is 20 GW.
The 150 GW refers to the current total installed generation capacity in India, both renewables and other forms of generation.