"The Natural Philosopher" wrote in message
...

So there is unlimited oil in the ground that will always take less energy
to extract than is actually in the oil?

On average only about 40% from a field is extracted because of the uneven
shapes of the caverns. More flexible pipes are being employed to extract
about twice as much, which means the North Sea has twice as much oil.

But, peak oil is reality. In less than a century about half the world's oil
reserves have been exhausted. A serious problem. The UK can use 100%
electricity for everything including all transport and heating, etc by using
tidal lagoons.

The UK can get all its power from tidal lagoons built into the Irish Sea. It
is largely a matter of dumping rock in the sea on an unprecedented scale.
British engineers can manage that OK, and the British Isles geography is the
best in the World for such an undertaking. It involves moving about 2500
million tons of rock to the Irish Sea, creating tidal lagoons to supply 100%
of Britain's electricity needs.

The numbers are staggering but possible. A heavy train can move perhaps 500
plus tons of rock so about 4 or 5 million train loads are needed. The UKs
waste can be dumped into the lagoon walls too while under construction. The
scale is no less than the laying of rail systems through the UK in the
1800s - trackbed, rails, trains, stations, bridge, tunnels, etc.

Tidal lagoons are both the long-term answer and they are more acceptable
politically. It would take maybe 30 railways to haul rock from say 30 large
quarries over 25 years to meet 100% of Britain's need for energy. 2500
million tons of rock and 25% of the Irish Sea. This is clearly possible and
mostly involves hauling rock from mountains to sea on an unprecedented
scale. New valleys can be created also with new lakes and fresh water
reservoirs, so knock on effects. Britain's engineers are easily up for that
challenge. The walls built can also be bridges and anti tidal surge
barriers too. There are many knock on benefits.

The insides of hills and mountains can be cut out for the rock and lakes
constructed top and bottom to make provision for instant use peak time hydro
stations and fresh water reservoirs - half time energy peaks in major
football games on TV.

The UK can then run super-fast Maglev trains city centre to city centre,
that can replace air travel and oil usage, without any problems in running
costs. In fact propeller plane using electric motors and the more efficient
battery sets could be used for island hopper planes.

Fuel poverty and pollution is then a thing of the past.