The NEP technology generates a tunable amount of ethane and propane from naphtha or LPG feedstocks. In a typical NEP-based olefin production complex, the ethane will be fed to an ethane steam cracking unit and the propane will be fed to a propane dehydrogenation unit. This approach generates more high-value ethylene and propylene with reduced production of lower-value byproducts compared to a traditional mixed-feed steam cracking unit directly processing the same quantity and composition of feedstock. This new approach results in net cash margin increases from 15 to 50%. An NEP-based olefins complex also reduces CO2 intensity per ton of light olefins produced by 5 to 50% vs a traditional mixed feed steam cracker.