Gas versus wind

De ontdekking van grote hoeveelheden schaliegas, die met nieuwe technologieën relatief goedkoop kunnen worden gewonnen en ons voor eeuwen van energie tegen betaalbare prijzen kunnen voorzien, zou als een godsgeschenk moeten worden beschouwd. Maar velen blijken die opvatting toch niet te delen. Zij beschouwen het als een forse streep door hun rekening.

Op de website 'Rational Optimist' schrijft Matt Ridley:

Wind must give way to gas before it ruins us all, and our landscapes. 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 roughly 25% capacity) roughly equal the output of an average Pennsylvania shale gas well (converted to electricity at 50% 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.

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. ...

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.

The International Energy Agency reckons there is 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.

Maar zal deze unieke kans ook met beide handen worden aangegrepen?

The best thing about cheap gas is whom 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 till even wind and solar power are competitive. The nuclear industry ditto. The coal industry will be a big loser 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 conventional gas producers. The environmental objections to shale gas are almost comically fabricated or exaggerated.

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 per 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 rain forest; hydro interrupts fish migration. Next time you hear somebody call these “clean” energy, don’t let him get away with it.

Conclusie:

To persist with a policy of pursuing subsidized 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.

Lees verder hier.