Say no to wind farms: Shale of the
century
By MATT RIDLEY
The arguments for wind farms just
became obsolete. We’re entering an era when gas will be cheap, plentiful – and
green
Which would you rather have in the
view from your house? A thing about the size of a domestic garage, or eight
towers twice the height of Nelson’s column with blades noisily thrumming the
air? The energy they can produce over ten years is similar: eight wind turbines
of 2.5 megawatts (working at about 25 per cent capacity) roughly equal the
output of an average Pennsylvania shale gas well (converted to electricity at
50 per cent efficiency) in its first ten years.
Difficult choice? Let’s make it
easier. The gas well can be hidden in a hollow, behind a hedge. The eight wind
turbines must be on top of hills, because that is where the wind blows, visible
for up to 40 miles. And they require the construction of new pylons marching to
the towns; the gas well is connected by an underground pipe.
Unpersuaded? Wind turbines slice
thousands of birds of prey in half every year, including white-tailed eagles in
Norway, golden eagles in California, wedge-tailed eagles in Tasmania. There’s a
video on YouTube of one winging a griffon vulture in Crete. According to a
study in Pennsylvania, a wind farm with eight turbines would kill about 200
bats a year. The pressure wave from the passing blade just implodes the little
creatures’ lungs. You and I can go to jail for harming bats or eagles; wind
companies are immune.
Still can’t make up your mind? The
wind farm requires eight tonnes of an element called neodymium, which is
produced only in Inner Mongolia, by boiling ores in acid leaving lakes of
radioactive tailings so toxic that no creature goes near them.
Not convinced? The gas well requires
no subsidy — in fact it pays a hefty tax to the government — whereas the wind
turbines each cost you a substantial add-on to your electricity bill, part of
which goes to the rich landowner whose land they stand on. Wind power costs
three times as much as gas-fired power. Make that nine times if the wind farm
is offshore. And that’s assuming the cost of decommissioning the wind farm is
left to your children — few will last 25 years.
Decided yet? I forgot to mention
something. If you choose the gas well, that’s it, you can have it. If you
choose the farm, you are going to need the gas well too. That’s because when
the wind does not blow you will need a back-up power station running on
something more reliable. But the bloke who builds gas power stations is not
happy to build one that only operates when the wind drops, so he’s now
demanding a subsidy, too.
What’s that you say? Gas is running
out? Have you not heard the news? It’s not. Until five years ago, gas was the
fuel everybody thought would run out first, before oil and coal. America was
getting so worried even Alan Greenspan told it to start building gas import
terminals, which it did. They are now being mothballed, or turned into export
terminals.
A chap called George Mitchell turned
the gas industry on its head. Using just the right combination of horizontal
drilling and hydraulic fracturing (fracking) – both well-established
technologies — he worked out how to get gas out of shale, where most of it is,
rather than just out of (conventional) porous rocks, where it sometimes pools.
The Barnett shale in Texas, where Mitchell worked, turned into one of the
biggest gas reserves in America. Then the Haynesville shale in Louisiana
dwarfed it. The Marcellus shale mainly in Pennsylvania then trumped that with a
barely believable 500 trillion cubic feet of gas, as big as any oil field ever
found, on the doorstep of the biggest market in the world.
The International Energy Agency
reckons there is a quarter of a millennium’s worth of cheap shale gas in the
world. A company called Cuadrilla drilled a hole in Blackpool, hoping to find a
few trillion cubic feet of gas. Last month it announced 200 trillion cubic
feet, nearly half the size of the giant Marcellus field. That’s enough to keep
the entire British economy going for many decades. And it’s just the first
field to have been drilled.
The impact of shale gas in America
is already huge. Gas prices have decoupled from oil prices and are half what
they are in Europe. Chemical companies, which use gas as a feedstock, are
rushing back from the Persian Gulf to the Gulf of Mexico. Cities are converting
their bus fleets to gas. Coal projects are being shelved; nuclear ones
abandoned.
Rural Pennsylvania is being
transformed by the royalties that shale gas pays (Lancashire take note). Drive
around the hills near Pittsburgh and you see new fences, repainted barns and —
in the local towns — thriving car dealerships and upmarket shops. The one thing
you barely see is gas rigs. The one I visited was hidden in a hollow in the
woods, invisible till I came round the last corner, where a flock of wild
turkeys was crossing the road. Drilling rigs are on site for about five weeks,
fracking trucks a few weeks after that, and when they are gone all that is left
is a ‘Christmas tree’ wellhead and a few small storage tanks.
Jesse Ausubel is a soft-spoken
academic ecologist at Rockefeller University in New York, not given to
hyperbole. So when I asked him about the future of gas, I was surprised by the
strength of his reply. ‘It’s unstoppable,’ he says simply. Gas, he says, will
be the world’s dominant fuel for most of the next century. Coal and renewables
will have to give way, while oil is used mainly for transport. Even nuclear may
have to wait in the wings.
And he is not even talking mainly
about shale gas. He reckons a still bigger story is waiting to be told about
offshore gas from the so-called cold seeps around the continental margins.
Israel has made a huge find and is planning a pipeline to Greece, to the
irritation of the Turks. The Brazilians are striking rich. The Gulf of Guinea
is hot. Even our own Rockall Bank looks promising. Ausubel thinks that much of
this gas is not even ‘fossil’ fuel, but ancient methane from the universe that
was trapped deep in the earth’s rocks — like the methane that forms lakes on
Titan, one of Saturn’s moons.
The best thing about cheap gas is
who it annoys. The Russians and the Iranians hate it because they thought they
were going to corner the gas market in the coming decades. The greens hate it
because it destroys their argument that fossil fuels are going to get more and
more costly until even wind and solar power are competitive. The nuclear
industry ditto. The coal industry will be a big loser (incidentally, as
somebody who gets some income from coal, I declare that writing this article is
against my vested interest).
Little wonder a furious attempt to
blacken shale gas’s reputation is under way, driven by an unlikely alliance of
big green, big coal, big nuclear and big gas providers. The environmental
objections to shale gas are almost comically fabricated or exaggerated.
Hydraulic fracturing, or fracking, uses 99.86 per cent water and sand, the rest
being a dilute solution of a few chemicals of the kind you find beneath your
kitchen sink.
State regulators in Alaska, Colorado,
Indiana, Louisiana, Michigan, Oklahoma, Pennsylvania, South Dakota, Texas and
Wyoming have all asserted in writing that there have been no verified or
documented cases of groundwater contamination as a result of hydraulic
fracking. Those flaming taps in the film Gasland were literally nothing to do
with shale gas drilling and the film-maker knew it before he wrote the script.
The claim that gas production generates more greenhouse gases than coal is
based on mistaken assumptions about gas leakage rates and cherry-picked time
horizons for computing greenhouse impact.
Like Japanese soldiers hiding in the
jungle decades after the war was over, our political masters have apparently
not heard the news. David Cameron and Chris Huhne are still insisting that the
future belongs to renewables. They are still signing contracts on your behalf
guaranteeing huge incomes to landowners and power companies, and guaranteeing
thereby the destruction of landscapes and jobs. The government’s ‘green’
subsidies are costing the average small business £250,000 a year. That’s ten
jobs a firm. Making energy cheap is — as the industrial revolution proved — the
quickest way to create jobs; making it expensive is the quickest way to lose
them.
Not only are renewables far more
expensive, intermittent and resource-depleting (their demand for steel and
concrete is gigantic) than gas; they are also hugely more damaging to the
environment, because they are so land-hungry. Wind kills birds and spoils
landscapes; solar paves deserts; tidal wipes out the ecosystems of migratory
birds; biofuel starves the poor and devastates the rainforest; hydro interrupts
fish migration. Next time you hear somebody call these ‘clean’ energy, don’t
let him get away with it.
Wind cannot even help cut carbon emissions,
because it needs carbon back-up, which is wastefully inefficient when powering
up or down (nuclear cannot be turned on and off so fast). Even Germany and
Denmark have failed to cut their carbon emissions by installing vast quantities
of wind.
Yet switching to gas would hasten
decarbonisation. In a combined cycle, turbine gas converts to electricity with
higher efficiency than other fossil fuels. And when you burn gas, you oxidise
four hydrogen atoms for every carbon atom. That’s a better ratio than oil, much
better than coal and much, much better than wood. Ausubel calculates that,
thanks to gas, we will accelerate a relentless shift from carbon to hydrogen as
the source of our energy without touching renewables.
To persist with a policy of pursuing
subsidised renewable energy in the midst of a terrible recession, at a time
when vast reserves of cheap low-carbon gas have suddenly become available, is
so perverse it borders on the insane. Nothing but bureaucratic inertia and
vested interest can explain it.
Very good post :P
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