Posted by Andy Hall on October 25, 2007, 7:20 am
Have you looked at their trade surplus?
Posted by Eeyore on October 25, 2007, 8:42 am
A lot is now sold internally.
Posted by Roger on October 24, 2007, 8:24 am
I would have thought that not having electricity at the flick of a
switch would generate far more public anger than the welfare of the
birds, but there are far more tidal inlets than needed to provide power
even if some of them would be very expensive propositions in terms of
Just about any tidal inlet would do in extremis but the larger the
scheme the longer the build time and the longer the government has to
plan ahead. In any event the lead times for major projects must be of
the same order as nuclear power stations so the time is rapidly running
out if they want to avoid a repeat of the 3 day working week.
The places you quote are just some of the major indentations in the
coast but some may not be good choices anyway. ISTM that the critical
feature of any such barrage is the relationship between the cost of the
barrage and the amount of usable water it can impound.
Of the ones you don't mention the Wash seems a better bet than Morecombe
Bay and Harwich Harbour a better bet than the Blackwater but the former
would really have the animal lovers up in arms and the latter is one of
the busiest ports in the country. But just up the coast from Harwich is
the River Deben which on the face of it would be ideal being a narrow
river with a long stretch of tidal water.
You need a large height difference to make pump storage schemes
effective which rules out most of England but tidal barrages should be a
better bet in any case.
There is nothing we can do other than complain bitterly while continuing
to buy their slave labour goods. :-)
Posted by Doctor Drivel on October 24, 2007, 11:35 am
The Mersey has a large estuary full of water. The water enters via the
Mersey narrows. The strong tidal current entering the narrows does what is
called a tidal scour. It creates deep water in the narrows, hence why
Liverpool is a large deep water port. There are few places on the west of
England/Wales for such deep water havens. I think Liverpool is the only one.
The Severn is a funnel shape and the river not that deep at all, so the
barrage has to be far out to store enough water.. The Mersey once dammed in
and the estuary dredged out eventually will hold a hell of a lot of water
for its area because of the depth.
The estimates are that the two barrages will provide from 6 to 10% of the Us
electricity. Also there will be less trucks using energy on the roads if
the waterways created are used to the full extent.
Tesco supermarket import ship loads of US, South American, Australian and
South Africa wine. They used southern English ports and trucked it up to
Manchester where it was bottled in their plant. Now they land the wine at
Liverpool container port, transfer the containers to smaller ships which
sail up the Manchester Ship Canal and off load at Irlam 2 miles from the
bottling plant, taking hundreds of inefficient trucks off the roads. If
they had brains in the first place they could have put the bottling plant on
the canal cutting in their own lay-by and take direct from the ship into the
plant, avoiding the cost of 2 miles by truck as well.
The knock on affects of stable dammed in waterways should not be
Posted by Andy Hall on October 24, 2007, 5:56 pm
If the customers had brains they wouldn't be buying wine processed in this way.