BERLIN — Scientists in Germany flipped the switch Thursday on what’s being described as “the world’s largest artificial sun” and which they hope will help shed light on new ways of making climate-friendly fuel.

The giant honeycomb-like setup of 149 spotlights — officially known as “Synlight” — in Juelich, about 30 kilometers (19 miles) west of Cologne, uses xenon short-arc lamps normally found in cinemas to simulate natural sunlight that’s often in short supply in Germany at this time of year.

By focusing the entire array on a single 20-by-20 centimeter (8×8 inch) spot, scientists from the German Aerospace Center, or DLR, will be able to produce the equivalent of 10,000 times the amount of solar radiation that would normally shine on the same surface.

Creating such furnace-like conditions — with temperatures of up to 3,000 degrees Celsius (5,432 Fahrenheit) — is key to testing novel ways of making hydrogen, according to Bernhard Hoffschmidt, the director of DLR’s Institute for Solar Research.

Many consider hydrogen to be the fuel of the future because it produces no carbon emissions when burned, meaning it doesn’t add to global warming. But since hydrogen doesn’t occur naturally, it first has to be made by splitting water into its two components — the other being oxygen — in a process that currently requires large amounts of electricity.

Researchers hope to bypass the electricity stage by tapping into the enormous amount of energy that reaches Earth in the form of light from the sun.