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Sunday, February 19, 2012

The cost of German solar policies

Bjørn Lomborg is a controversial PhD political scientist who has questioned the cost effectiveness of various efforts to mitigate global warming.

His Feb. 16 syndicated commentary discusses the implications of Germany’s plans to drastically scale back its feed-in-tariff:
Germany’s Sunshine Daydream
By Bjørn Lomborg

Germany once prided itself on being the “photovoltaic world champion”, doling out generous subsidies – totaling more than $130 billion, according to research from Germany’s Ruhr University – to citizens to invest in solar energy. But now the German government is vowing to cut the subsidies sooner than planned, and to phase out support over the next five years. What went wrong?

There is a fundamental problem with subsidizing inefficient green technology: it is affordable only if it is done in tiny, tokenistic amounts. Using the government’s generous subsidies, Germans installed 7.5 gigawatts of photovoltaic (PV) capacity last year, more than double what the government had deemed “acceptable.” It is estimated that this increase alone will lead to a $260 hike in the average consumer’s annual power bill.

On short, overcast winter days, Germany’s 1.1 million solar-power systems can generate no electricity at all. The country is then forced to import considerable amounts of electricity from nuclear power plants in France and the Czech Republic. When the sun failed to shine last winter, one emergency back-up plan powered up an Austrian oil-fired plant to fill the supply gap.

Indeed, despite the massive investment, solar power accounts for only about 0.3% of Germany’s total energy. This is one of the key reasons why Germans now pay the second-highest price for electricity in the developed world (exceeded only by Denmark, which aims to be the “world wind-energy champion”). Germans pay three times more than their American counterpart.

Using solar, Germany is paying about $1,000 per ton of CO2 reduced. The current CO2 price in Europe is $8. Germany could have cut 131 times as much CO2 for the same price. Instead, the Germans are wasting more than 99 cents of every euro that they plow into solar panels.

It gets worse: because Germany is part of the European Union Emissions Trading System, the actual effect of extra solar panels in Germany leads to no CO2 reductions, because total emissions are already capped. Instead, the Germans simply allow other parts of the EU to emit more CO2. Germany’s solar panels have only made it cheaper for Portugal or Greece to use coal.

In the meantime, Germans have paid about $130 billion for a climate-change policy that has no impact on global warming. They have subsidized Chinese jobs and other European countries’ reliance on dirty energy sources. And they have needlessly burdened their economy. As even many German officials would probably attest, governments elsewhere cannot afford to repeat the same mistake.

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