A big expansion of CSBP’s ammonia plant has been recommended for approval by the Environmental Protection Authority, one of a series of greener chemical projects planned in Kwinana’s growing industrial area. The project — previously estimated to cost more than $500 million — is set to substantially lift production of the chemical, which plays a vital role as an ingredient in nitrogen fertilisers, by 300,000 tonnes a year. The company has touted the plan as a way to reduce its exposure to price and supply volatility, and says once completed the project would be one of the most emissions-friendly ammonia plants of a similar scale around the world. Wesfarmers-owned CSBP had considered an even bigger expansion to add to its existing 525,000tpa plant but opted for a smaller-scale plan. The chemical is mostly used to make fertiliser and explosives. But it is also more broadly being considered as a method to ship hydrogen. CSBP’s plant will mostly run off natural gas using about 27 terajoules a day, however the proposal also includes a 10 megawatt electrolyser to process water into green hydrogen. The EPA approval also sets rules to cut carbon emissions over the project’s three-decade life in line with a net zero by 2050 target. It’s unclear when a final investment decision will be made, and a spokeswoman for the company said there was still a lot of assessment work to be done. “Some of (the matters to consider) include the long-term forecast of ammonia prices as well as associated carbon management solutions, such as (carbon capture and storage), which will deliver on the low carbon component for the project,” she said. ‘This work will be done as the approvals process continues.” Wesfarmers’ project is one of a raft of energy facilities proposed through Perth’s main industrial corridor with a greener tinge. Oil and gas giant BP is developing a sustainable aviation fuel plant on the site of the old Kwinana refinery, with a further project to produce green hydrogen also in the works. Meanwhile, Woodside has secured a big plot of land for the H2Perth blue and green hydrogen project amid departmental concerns about a shortage of heavy industrial land in Kwinana.