A breakthrough solar oven got hot enough to produce carbon-free cement and steel

Its mirrors can generate heat up to 1,482 ºC.
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A breakthrough solar oven got hot enough to produce carbon-free cement and steel
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A sneak peek at the innovations that will change our everyday lives in the future.


Heliogen is a secretive startup developing a promising solar technology that relies on transforming sunlight into extreme heat.

Using mirrors to reflect light into a single point achieved temperatures just three times lower than the surfaces of the sun. That extreme heat can be used to produce cement, glass, or steel – industries that are heavily reliant on fossil fuels.


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