Northern Germany, from the Polish borderlands in the east to the Netherlands in the west, is the stronghold of Germany’s muscular onshore wind power industry. This is where the lion’s share of the country’s nearly 30,000 wind turbines are sited, a combined force equal to the power generation of about 10 nuclear reactors. Where Germany’s northernmost tip abuts Denmark, soaring turbines crowd the horizon as far as the eye can see. And many more are coming as Germany strives to go carbon neutral by 2050.
Yet despite their impressive might, the north’s wind parks are a reminder not only of how much has been accomplished in Germany’s Energiewende, or clean energy transition, but also of what remains to be done. Although the country has made a Herculean effort to shift to a clean energy economy — in just the past five years government support and costs to consumers have totaled an estimated 160 billioneuros ($181 billion) — Germany’s greenhouse gas emissions have not declined as rapidly as expected in response to the vigorous expansion of renewable energy, which now generates 40 percent of the country’s electricity. Germany’s politicians are even resigned to falling significantly short of the country’s 2020 goal of reducing emissions by 40 percent below 1990 levels.
Germany’s failings have come as a vexing shock to its environmentally conscious citizenry. While Germans still overwhelmingly back the energy transition — for years polls showed support in excess of 90 percent — about three-quarters say the government is not doing enough to slow global warming.
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Have investors lost interest in “clean energy”?
Before 2011 global investment in clean energy (wind, solar, biomass, biofuels etc.) grew rapidly. Then in and around 2011 many governments abandoned renewables subsidies in favor of capacity auctions, and growth in global clean energy investment ceased. Investment in North and South America has not increased since 2007 and in Asia it has not increased since 2015. Clean energy investment in Europe has been declining steadily since 2011, and investment in the UK and Germany is now approaching zero. The current level of investment (~$300 billion a year) is also too low to support a global transition to renewable electricity and to meet global emissions targets. The indications are that it will reach adequate levels only if lavish government subsidies are reinstated. The global renewable electricity transition may fail simply because of a lack of funding.
A year ago, using data from Bloomberg New Energy Finance (BNEF), I put up a post discussing global “clean energy” investment between 1Q 2005 and 2Q 2017. BNEF has now published a new report adding a year of data through 2Q 2018 along with some more detailed graphics. This post reproduces some of the more interesting ones, with an emphasis on Europe.
First we will deal with the question of the inadequacy of clean energy funding. According to the BP Statistical Review global electricity demand in 2017 was 621 TWh higher than in 2016, an increase of 2.5%. Table 1 shows how this added demand was filled:
*Wind, solar, geothermal, biomass, waste, biofuels etc.
To decarbonize the world’s electricity sector and to meet emissions targets enough renewable generation must be added each year a) to cover increased global demand and b) to replace a significant amount of fossil fuel generation. Table 1, however, shows that the 307 TWh of renewable generation added in 2017 was enough to fill only about half of the increase in global demand.
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