DESALINATION STATION is
a Seawater Pumped-storage Power Desalinator, an
brought about by the need to solve a particular
problem - desalinate
water for Sydney without generating greenhouse gas.
I like to call
that the biggest green
"battery" in the world.
seawater (SPS) into
"upper" tank and desalinates
using pressure gained for Reverse Osmosis (RO) and
dropped to make
hydro-electricity on the way
down - and/or drops unprocessed seawater to
Steam Hydro to Distill.
machine doing the job
of two is probably a more
efficient use of energy... but that's just the beginning.
The KEY to
is to replace water with seawater in
pumped-storage - it then becomes seawater pumped-storage requiring only
tank (because the sea is the "lower") and conventional pumped-storage
requires TWO. An
important consideration for Sydney when choosing a desalination plant -
apart from a green choice to make water - when the drought is over Shep can revert to an
on-demand green power station.
idea but no donut - the physical height required is prohibitive. There's
one or maybe 2 places on the planet where this idea will work. Aqaba
somewhere else ! (but
this posted as
a reminder - it sounded like
idea at the time:)
of you may have noticed there are no actual figures anywhere on this
site - this is because I had none - but now I do.
Further research has revealed that basically the
same idea has already been published by the
United Nations Press with
all the facts and figures in detail around 10 years ago known as the "The
Aqaba hybrid scheme".
following text is published in the
United Nations Press.
Aqaba hybrid scheme
of any new thermal or nuclear power station in the region would benefit
from a pumped-storage scheme for efficient off-peak energy use. Hybrid
water-energy co-generation is the application of sea-water
pumped-storage with reverse osmosis desalination 1993; Murakami and
Musiake, 1994). The Aqaba scheme (see fig. 11.6) would pump sea water
during off-peak periods to store it in an upper reservoir at the top of
an escarpment 600 m above sealevel. The stored sea water would be
discharged into a penstock shaft to yield an effective water pressure
of 60 kg/cm2 at the end of the pressure pipe system, simultaneously
generating 600 MW of peak electricity and producing 100 MCM of fresh
potable water (see fig. 11.7). Off-peak electricity to lift the sea
water to 600 m above sealevel would be supplied not only from a steam
power plant at Aqaba but also from steam power plants in either Egypt
or Israel, or from other regional electricity grids.
Aqaba research indicates:
we are to rely upon gravity alone, a 600
hill is required to supply
the high pressure required for reverse osmosis desalination to take
The study reveals a basic flaw in the ShepHydro idea. It is now
known this was not taken into account and would need to be
before the lovely but outragious claims could be fulfilled.
Note: the web site text shall remain unchanged but the outrageous
"ecologically sustainable and renewable" claims were dependant upon
this assumption: "elevating seawater in pumped-storage would achieve
"pressure" to desalinate".
of a flaw in the invention is now known - the energy efficiency was
underestimated. That one fact makes all the difference -
because it NOW would require a substantial hill - and that limits
practicality... unless you have "many" 600 meter hills.
My apologies to those who have assisted me
on this journey who have been led astray by the assumption or omission
of this pivital information that came to light several months later
and after extensive meetings assisted by Sydney Water. Bottomline,
getting 2 products - electricity and water - for the price of one falls
short, some 30% "energy" short.
There are many roads to China, and I am encouraged by the hundreds of
ideas and inventions that are appearing on the internet - that are
also being tested in the real world. It matters not who finds the way
- it matters that we find a way out of the Climate Change soup.
thanks to all at Sydney Water, TUPL and Oceana for
and helpful assistance.
configuration in comparison to conventional desalination reduces
greenhouse emissions by some 75% - because Shep produces 100% green
to SMH Nov 1 2004, Carr's desalinator is expected to produce 255,500
tonnes of greenhouse gasses per year. ShepHydro on Day 1 would
amount when using the same fossil fuel - but on
Day 2, and every day after, Shep benefits from feeding its' own
clean hydro power
back into itself - and would only require an external 25% to re-fill to
|Because Shep produces its' own
power and it's 100% green - everyday after represents a quantifiable saving of 75% greenhouse - reducing the total
greenhouse gas emissions to 66,000 tonnes
pumped-storage role of supplying on-demand instant power has served
faithfully for 100 years. Tomorrow seawater pumped-storage will
double in efficiency to supply water as-well
for around the same cost, but a whole lot cleaner.
leaves a balance of 25% excess energy required from
the grid and Shep reciprocates as an intrinsic
part of the
circuit delivering on-demand power to balance the load and produces water as-well.
green technology like the Aquanator or Solar or Wind pick up the balance, Shep could go 100% green producing on-demand
power and water... and this
demands your attention because it could be a major breakthrough in
You know you
use up more gas in your car speeding around instead of cruising - and
all that stopping and starting just adds up costing you extra, well,
it's the same for the big boys - they just have
KEEP ON RUNNING
energy you would lose by switching off a power station at night and
re-starting in the
morning is just not worth it... it would cost too much, so they just
keep them running. It's a loss but it's a practical decision. The
excess energy that isn't used is lost. I guess the losses are
calculated into my electricity bill. The user ends up paying, that's me
YOU USE IT OR YOU LOSE IT
As you know, unless
you store electricity somewhere, like in a battery, you use it or you
lose it. The same goes for power stations.
To store excess energy, overnight they use "pumped-storage". Pump
water from the "lower" tank into the "upper" tank to store.
Pumped-storage provides "on-demand" clean electricity at a moments
notice. In the morning when you
up a put the kettle on - you demand electricity - the "pumped-storage"
gate opens and
the water falls from the "upper"
to the second "lower" tank
and makes the hydro-electricity that
boils your kettle.
It's significant to note that pumped-storage has upper
and lower tanks.
Because you can boil
the kettle at any hour
of the day or night you need on-demand power, and you have it - at your
switch. If everyone
decides to have a t-break at the same time, electricity is rushed
towards you to fill your need. If the electricity cannot be delivered
in that moment, you experience a blackout. All your computers shut down
- you're left in the dark and can't make a cup of tea - leaving you
frustrated with no idea of what when
or how long.
The role of pumped-storage is to supply on-demand
it's job. And it's been that way for 100 years although conventional
pumped-storage has it limitations. Due to the enormity of the claim "clean
green ecologically sustainable and renewable power and water forever"
I wish to note, "seemingly small changes make big differences". Later,
I will outline pumped-storage's limitations and how to improve it's
efficiency, which may appear to be a small change but is the key to
unlocking enormous resource.
GREEN RE-CHARGEABLE BATTERY
If the power stations
could ramp up quickly and
efficiently to handle
peaks - they would - but it's not practical or cost effective. The
alternative practise of using excess energy to pump
water into an "upper" tank - storing - and dropping to the "lower" tank
later - is the most efficient and cost effective use of energy - as you
know "you use it or lose it". One could liken filling the "upper" tank
to re-charging a battery... and for simplicity sake is easiest described
as a "battery" although
there is always a cry, "but it's
not!". Yes it's not but get over it. It is
important to note: the power available from pumped-storage is the
largest clean "battery" on the planet.
Having more of these clean "battery" devices would combat blackouts,
is very worthwhile addition to any power grid system.
The "battery" for the grid is
pumped-storage power station and it's
Stations especially like to run at a consistent level and SHEP is the
companion to store all that overnight energy because SHEP along with
electricity ALSO delivers
fresh water... because it can. You can't
make fresh water from fresh water -- but you can
make fresh water from
seawater... and electricity
can't taste the
stations provide on-demand peak
power and are already embeded in the grid - and we already pay for the
service. The cost is calculated in your bill. It sounds like a
change - to pump seawater instead of fresh water in a pumped-storage
power station - but there needs to be years of research and testing.
Well to shave 20 years and make it a real no-brainer, all we need is a
seawater power station... like this one.
PUMPED-STORAGE POWER STATION IS IN OKINAWA JAPAN.
Finding JCOLD seawater power
station last week on the net just blew me off my seat. Where have I
been? Under a rock? But the internet does this everday and never ceases
This brings SHEP
INTO REALITY and one giant step
closer - to
for producing hydro-electricity and simultaneously desalinating water - towards
a clean green ecologically sustainable and renewable almost
unlimited energy and clean water future. But not only that, the
seawater pumped-storage version is cheaper
to produce than regular fresh water pumped-storage because it requires
only one "upper" tank built (see pic.) since the sea is
the "lower" tank... so it's cheaper? but wait there's
machine doing the job
of two is probably a more
efficient use of energy. Having to build one
not two has got to be cheaper. Changing
from a limited
fresh water resource to unlimited renewable and to then realize source
and resource are one
opens the door to a clean green ecologically sustainable renewable
triple bottom-line ethical business practise.
tonnes front page Sydney
Morning Herald Nov 1 2004