Ulva sp. is an emerging biomass to produce food, chemicals and fuels. However, such a biomass processing is challenging, and often new equipment and protocols are needed. Specific challenges include large amounts of intracellular salts and different from lignocellulose biomass cell wall. In this talk I will discuss 1) equipment and process development for extraction of phytochemicals from the Ulva sp. biomass using high voltage pulsed electric field preprocessing, 2) hydrothermal biomass processing to produce bio-crude and biochar and 3) halophytic fermentation of Ulva sp. biomass to produce polyhydroxyalkanoates, promising substitutes of polyesters.