This is the German flag. It has not yet been raised at the London Olympics.

Germany now generates 25 percent of its electricity from renewable sources. The nation has not, however, won any Olympic medals.

Germany produced 67.9 billion kilowatt hours of renewable energy in the first half of 2012, a record high and an increase of 19.5 percent from the same period last year, industry figures showed on Thursday. …

Wind energy was the largest contributor of green power, accounting for 9.2 percent of all energy output, BDEW said.

Biomass, or material acquired from living organisms, accounted for 5.7 percent and solar technology for 5.3 percent.

After the Fukushima meltdown in Japan, Germany pledged to eliminate all nuclear power, increasing its use of renewables to 35 percent by 2035. If it were to keep increasing at 19.5 percent a year, it would hit that target by 2015.

For Germany to match its 2008 medal haul, it needs just under three medals a day for the rest of the Olympics.