There are many ways to make a work openly available that do not require authors to pay any fees!  You may:

If you are an author who has already been accepted to a publication that charges an Article Processing Charge (APC) for all articles, you may be able to seek a waiver from the publisher after indicating that there are no institutional funds available. 

Also consider choosing a journal with which the University has a relationship that provides a discount on APCs.

Any further questions? Please contact openaccess@umn.edu

Questions or comments about open access issues at the University of Minnesota, and in general, can be directed to openaccess@umn.edu.