This is a solar application at the campus of Princeton University near the main street of Nassau. The solar panels are energizing sign post including a map and bus line directions. The sign post can be switch on as depicted in Pictures 3 and 4. 
Being a case of academic application of renewable energy, professors and students can draw a lot from this small scale renewable energy project. 
| Picture 1 | 
| Picture 2 | 
| Picture 3 | 
| Picture 4 | 
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