I will be out of the office starting  12/10/2007 and will not return until
31/10/2007.

I am out of the office and will have limited access to my e mails, I will
respond to your message when I return, alternatively if it is urgent you
can contact Holly Newton on +44(0)1392 284 421.

I will be out of the office starting  12/10/2007 and will not return until
22/10/2007.

If your query is urgent please contact Ron Peddie on 01847 806617

Donna



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Enter your vote today!  A new poll has been created for the
tidal_power_uk group:

Are you happy with the SDC's position (as outlined in its final report published
on 1st October 2007) on a Severn barrage?

   o Yes, very
   o Yes, somewhat
   o No, somewhat
   o No, very


To vote, please visit the following web page:
http://uk.groups.yahoo.com/group/tidal_power_uk/surveys?id=1936864

Note: Please do not reply to this message. Poll votes are
not collected via email. To vote, you must go to the Yahoo! Groups
web site listed above.

Thanks!

The Marine Environmental Data Action Group (MEDAG) is pleased to announce that they have published a GIS application that catalogues available tide and sea level data around the UK coast giving timescales, instrument, contact and other details. This compliments a catalogue of wave data, and a previously released DVD that contains over 4000 current meter data series and the software to explore and extract those data.

Follow the links from the MEDAG homepage http://www.oceannet.org/medag/index.html to gain access to these data resources, or contact enquiries@... for further details.

We hope that the Tidal Power UK group will find these data resources usefull.

Does anyone know when the most recent current velocity survey
performed along the proposed Severn Barrage site and what type of
survey it was, i.e.  Acoustic Doppler Current Profiler, Current Meter,
etc.?

I will be out of the office starting  31/01/2008 and will not return until
25/02/2008.

I am out of the office and will have limited access to my e mails, I will
respond to your message when I return, alternatively if it is urgent you
can contact Holly Newton on +44(0)1392 284 421.

Excellent paper by David J.C. MacKay of Cavendish Laboratory,
Cambridge, quantifying the benefits of using tidal lagoons to smooth
out intermittent power from wind.
http://www.inference.phy.cam.ac.uk/sustainable/book/tex/Lagoons.pdf

Article in South Wales Evening Post

BAY LAGOON BACKER CALLS FOR POLICY SEA CHANGE
Date : 26.07.08



BY Richard YOULE environment reporter

richard.youle@...

THE man behind a proposed energy-generating lagoon in Swansea Bay
says he hasn't given up on the project, despite continuing silence
from the UK Government on the scheme.

Peter Ullman wants to capture rising and falling tides in a rocky
lagoon structure that would then funnel the water through turbines to
generate clean electricity for thousands of city homes.

Mr Ullman, chief executive of American firm Tidal Electric, was
speaking in the wake of an announcement by the Government of 10
potential schemes it is investigating to harness the huge tidal range
of the Severn Estuary.

They include the much-vaunted Severn barrage, running from Lavernock
Point, near Cardiff, to Brean Down, near Weston-super-Mare, a longer
barrage from Minehead, Somerset, to Aberthaw, in the Vale of
Glamorgan, a series of tidal lagoons, and a tidal reef.

The shortlist of 10 will be whittled down later this year, with
further feasibility studies taking place until late 2009 or early
2010.

The Swansea Bay project is not included in this shortlist because it
is not in the Severn Estuary. But because it's not part of the
ongoing government investigation, which has effectively put all the
schemes on hold, it could in theory get underway quickly if consent
was given.

"We have been ready to go for years," said Mr Ullman. "The issue for
us is whether we can get consent - but you just don't know what the
UK Government is going to do."

Having consulted 55 different groups about the Swansea Bay lagoon
scheme, and had the project studied by five independent specialists,
Mr Ullman believes a change in government policy is needed to give
him - and potential investors - confidence. But he added: "I have not
given up on Swansea Bay."

Tidal Electric is hoping to build tidal lagoons in Canada and in the
Sea of Cortez, off Mexico. "The Mexican Government is proposing to be
our partner on a 500MW scheme, which is much bigger than the 60MW
Swansea Bay scheme," said Mr Ullman. "We are hoping to close the
deal."

There are other advantages of Tidal Lagoons. The walls of tidal lagoons
could support wind turbines, and the lagoons themselves fish farming. On
the East Coast of England they could also act as barriers to coastal
erosion, and this has been proposed to local councils in that area.

Construction in many cases could be using the "Mulberry" technique as
deployed on the Normandy Coast in 1944 to construct harbours.

regards
Ferrand, see www.grunweb.org.uk/page25.html

The empoundment can be made more cheaply and without the use of
concrete by using a Gabion Wall type construction, with dredged
material, or maybe loose rock, with an impermeable membrane
incorporated. This will reduce the carbon cost during construction.

If the wall is ever demolished the only concrete to dispose of will be
the turbine housing.

If wind turbines are constructed on the wall, they will need to be
piled, but this will still be cheaper than fabricating the wall of
concrete.

Re wind turbines on pond walls, if contra rotating units are used, which
are "arrays" on a framework with a low overturning moment, foundation
requirements are much reduced, Floating units can be considered, moored
to pond walls.
regards
Ferrand

The present activities of the Financial World remind one of the two
ladies of legend who earned a precarious living by taking in each
other's washing or the Ozzlum Bird, which flies in ever decreasing
circles until with a cry of Oozelum and a cloud of feathers it
vanishes up it's own fundament.

We have all confused Money with Real Wealth, especially the tax
gatherers who have enthusiastically backed the Oozelum, collecting
taxes each time it went round.

The result of all this for the UK is that it is "Broke",
The Office of National Statistics has UK assets, as of 2006 (the
latest stats available, and no doubt it'll be less now) as
£6.5trillion. Less residential property (£3.8trillion) leaves
£2.7trillion.

Net debt stands at £600billion, but to include public sector pensions,
PFI, Northern Rock etc takes that figure to £1.8trillion.

Add the £500billion figure that has been bandied around this week as a
guarantee to the banking sector and we get £2.3trillion.

The Burning Our Money blog on the website estimates this to rise to
£6.5trillion if all commericial bank debt is guaranteed. i.e Credit
Card Debt etc.

It's a depressing picture, do take a look at this:
http://tpa.typepad.com/waste/2008/10/maxxed.html –

Real Wealth comes from harvesting or mining, plus human effort.
Harvesting areas include the Land, The Oceans, and the Sky. Mining can
be by Land or Sea.

So to start collecting Real Wealth we must rapidly set on the Energy
Harvest. Those who advocate Nuclear should remember that it, central
fossil power stations, and large wind farms are preferred by
Politicians as they can tax the output.  Large wind farms are probably
uneconomic in principle as compared to many other Renewable
Engineering Projects

Trouble is that the UK Government has done little or nothing to set on
this Harvest other than form a new department for Climate Change and
Energy headed by someone who has no apparent knowledge or connection
with Energy or Harvesting, and may well be himself – and presiding
over- one of a tream of scientific analphabets.

THEY MOAN ABOUT A FORTHCOMING DEPRESSION.
BUT WITH MOST UK DWELLINGS LACKING SOLAR WATER HEATING, SOLAR PANELS,
AND HEAT PUMPS.  TIDAL POWER UNDEVELOPED. WIND POWER TOO COSTLY.
BIOFUELS FROM CO2 UNDEVELOPED ETC. HOW CAN WE HAVE A DEPRESSION -
OTHER THAN THROUGH FAILURE OF POLITICAL AND PRIVATE WILL TO TAKE
ADVANTAGE OF THE VAST MANUFACTURING,  INSTALLATION AND OPERATIONAL
OPPORTUNITIES ON OFFER FROM RENEWABLE ENGINEERING ????
IT IS COUNTER INFLATIONARY TOO !!
Regards
Ferrand www.grunweb.org.uk
Ps feedback appreciated, especially on asset and debt data for other
countries.

I will be out of the office starting  07/11/2008 and will not return until
24/11/2008.

I am out of the office and will have limited access to my e mails, I will
respond to your message when I return, alternatively if it is urgent you
can contact Holly Newton on +44(0)1392 284 421.

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Is there any interest in this group with the consultation ending on Friday?