Well, yes! It seems, Gates Institute of Technology, Gooty, Andhra Pradesh (India) is being powered entirely using solar panels (100 KW) and hence, it is not connected to/doesn't draw power from, the grid. This project has been executed by Su-kam, a well known brand in the backup power segment, in India.
Gates Institute of Technology is located 300 KM south of Hyderabad, capital of the Indian state Andhra Pradesh and more than 1,400 engineering students are studying in its campus. Su-kam has installed a 100 KW solar panel system (on the college rooftop), along with a battery bank (capacity: 20 KW). Since only nominal power would be required in the night, the battery capacity has right-sized, hence saving a lot of capital and recurring cost.
This is an excellent example for other such institutions to follow, as power situation in India is rather precarious. Either grid power is so unreliable (in remote areas) or there is regular scheduled power-cuts for multiple hours, every day. Collages and other institutions are already looking at solar/wind power as a back-up power source, but colleges (especially the ones located in remote locations) could also look at disconnecting from the grid and opting for solar/wind power as their main and only power source. Perhaps, grid connectivity/diesel generators can still act as a secondary/back-up source.
Well, being totally disconnected from the grid is possible and you just read about a college which has already done it. Do work your economics, and you'll be surprised at how much power can be saved on the long-run if you opt for a renewable energy power generation plant, within your campus.
Source/Further Info: Su-kam's webpage.
