How do you catch the sun to make electricity at night? This German inventor has an answer.

solar storageHe’s electrified his bicycle. He’s electrified his Porsche. When he introduces his dog, Paula, you almost expect him to tell you that he’s electrified her, too.

Not yet, but you never know. The engineer from a small town in southwestern Germany is a classic tinkerer. His home is his development lab, and when he’s not wiring up his vehicles, he’s working on the latest iteration of an invention that he thinks will help solve what might be the biggest problem in Germany’s energiewende — its historic transition from fossil fuels and nuclear power to mostly solar and wind power.

Just a few years in, the country already gets more than a quarter of its electricity from renewables. But those sources aren’t always available, which limits their effectiveness


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