This Python scripts allows retrieval of the Envoy Local API from Enphase: http://enphase.com/global/files/Envoy-API-Technical-Brief.pdf
Please note, you need Envoy software release R3.9 or later to be able to read your local Envoy status.
Try not to read your Envoy more than once every 5 minutes as the PV Inverters will only produce data every 5 minutes.
Install Python 2.7: https://www.python.org/download/releases/2.7
Tested with Python 2.7.6 but 2.7.7 should work too.
Run the script using the command line: c:\Python27\python.exe Envoy.py
After successfull retrieval you can do anything with the data, like put it in a database, push it to PVOutput, etc.: write_logging("*** Doing something here with wattsNow: %s" % wattsNow)