While Seattle-based Amazon is best known for its dominant position as an online retailer, the company has been in the cloud computing space since 2006 with Amazon Web Services, a subdivision that has since become a leader in its category. It is reportedly generating around 17% of Amazon’s overall revenue, which hit $575 billion last year.

Both companies seek new sources of carbon-free electricity to meet surging demand from data centers and artificial intelligence.

Amazon’s agreement with Washington-based Energy Northwest will produce four advanced SMRs that will be built, owned, and operated by the utilities consortium. The tech giant is also investing in SMR reactors and fuel developer X-energy, it said. X-energy’s design for advanced nuclear reactors will be used for Amazon’s project with Energy Northwest.