This is an older design with some flaws, use this newer one; https://factorioprints.com/view/-MRFqW4PU4rq71Q6bh5W
Possibly the most dense base in Factorio 140m * 232m, 15.39 SPM / Km^2
Inputs indicated by combinators on the left. 2.6 GW required.

Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
This is an older design with some flaws, use this newer one; https://factorioprints.com/view/-MRFqW4PU4rq71Q6bh5W
Possibly the most dense base in Factorio 140m * 232m, 15.39 SPM / Km^2
Inputs indicated by combinators on the left. 2.6 GW required.