Lights Out, Power Down!


Happy Campus Sustainability Month Patriots!

University Sustainability exemplifies Mason’s commitment to a just and sustainable future for all.
Join us in supporting the Mason Community in its mission.
Mason celebrates many sustainable programs, events, and initiatives during Campus Sustainability Month!
Explore our Campus Sustainability Month Calender for featured events we encourage all Mason Patriots to attend to make an impact!





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October 4 @ 10:00 am - 2:00 pm

Location: University-wide
Mason Patriots are encouraged to voluntarily turn off and unplug all non-critical lighting and electrical loads in offices, residence halls, classrooms, and laboratories at the Fairfax, Science and Technology, and Mason Square Campuses from 10 a.m. – 2 p.m. on Wednesday, October 4th. The power will still remain on, and all university operations will continue normally. Mason Patriots make the university more sustainable by taking action! 2023 is the ninth year of Lights Out, Power Down! held to coincide with Energy Efficiency Day.


October 4
10:00 am - 2:00 pm



Every action matters.
Let’s act more sustainably individually and as a Mason community to make the university even more sustainable!
Integrate the sustainability topics you care about into your day-to-day: class projects, academic courses, research, and your work at Mason.
Let’s act this Campus Sustainability Month, every day, and every month!