Supergrid news | 40 comments (40 topical, editorial, 0 hidden)

Re: Supergrid news (none / 0)

I kind of figured as much. Interestingly, with EMF it probably should be the other way around since there are a number of marine animals that use electric fields to survive. But according to this 2009 report, the impacts of underwater cables are still unknown:

Therefore at this point it is known that the sub-sea cable emissions can be detected by the sensory organs of several marine organisms although very little can be predicted about what kind of interaction this may trigger. It is very hard, with current data, to estimate if there can be a species or an ecological impact from EMF.

by Jace on Wed Apr 13th, 2011 at 01:00:12 PM EST
[ Parent ]

Re: Supergrid news (none / 0)

These are DC lines, so the EMF consideration is a lot less than with AC.

by asdf on Wed Apr 13th, 2011 at 04:50:28 PM EST
[ Parent ]

Re: Supergrid news (none / 0)

I just read Redmond O'Hanlon's book "Trawler". A good read and, yes, it is far from an in depth look at deep sea fishes but one point of emphasis that seems hard to dispute is that we still know very little about this environment and what lives in it. This paper only reinforces that.

While you're right about DC and EMF, there have been no actual site studies that I know that look at impacts of electrical fields on these environments.

by Jace on Wed Apr 13th, 2011 at 06:38:39 PM EST
[ Parent ]

This is not that relevant (none / 1)

We are talking sea depths of 20-40m only, and some of the best known seas in the world. Cables are buried deep to avoid being torn by anchors, or to cross shipping lanes or pipelines....

So far, the biggest environmental worry is the noise when hammering steel foundations into the sea bed (think giant hammer meets gain nail...)

Wind power

by Jerome a Paris (etg@eurotrib.com) on Thu Apr 14th, 2011 at 02:46:35 AM EST
[ Parent ]

Re: This is not that relevant (none / 0)

Clearly I should stick to things I know something about...

by Jace on Thu Apr 14th, 2011 at 09:58:48 AM EST
[ Parent ]

Supergrid news | 40 comments (40 topical, 0 editorial, 0 hidden)

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