I think the cost of operating and running an algae farm for biofuel production is too expensive for the breweries. Another reason is the size of reactors or ponds for growing algae for biofuel is pretty massive. Most companies that grow algae for biofuel have multiple ponds the size of football fields and sometimes the yield is still pretty low.

I think working with algae farms would be the best way. They can provide the nutrients to the algae farmers. Which would be an easier additional revenue stream.

I think a better solution to cut the transportation would be to build a algae farm using closed systems next to the breweries or close to them