Here are a few articles on PV monitoring from SolarPro Magazine. You may access these through solarpro.com for free. Just create an account, log in, and search by the issue number or article title.
Hybridoma Technology ( Production , Purification , and Application )
Pv monitoring references
1. SolarPro (Issue 2.5):
Making the Case for Residential Photovoltaic System Monitoring by Brian Farhi
SolarPro( Issue 4.6):
Commercial PV System Data Monitoring, Part One By Kyra Moore , Rebekah Hren
SolarPro (Issue 5.1):
Commercial PV System Data Monitoring, Part Two By Kyra Moore , Rebekah Hren