One of the most powerful things a University can do (as opposed to a company or government department) is to have impact through TEACHING and RESEARCH. If we don't harness these strengths, we'll always have much less impact than we could have.
I propose a high profile University challenge event (eg USYD vs UNSW or Melbourne, but with the aim of becoming national/international) to encourage student teams to develop new solutions- which could be piloted on campus.
Highly successful models for this event include: https://www.solardecathlon.gov/; https://www.worldsolarchallenge.org/; and in other areas: https://2019.robocup.org/, and (the only one of these that USYD has actually taken part in) https://www.spaceportamericacup.com/ (which USYD won, with the highest ever points).
This is an opportunity to engage students, encourage them to use their university skills to take meaningful action, encourage teamwork, make a public statement and put ourselves on the map. (BTW there is NSW govt funding for this kind of competition).