We just finished installing a 3450 watt solar PV system in the Rattlesnake where we employed 16 Enphase micro inverters. Micro inverters offer several advantages over more conventional string inverters.

Racking system in, Panel get ready!

Each solar module power production is optimized individually so little module mismatching occurs.  As well, if one module is shaded from a nearby tree, this one module will have reduced output, not the entire series string of modules as with the larger string inverters.  This advantage alone makes a huge difference but the pluses don’t end here.

Josh setting the first panel. Check out the lines on those racks and micro-inverters.

The Enphase engineers designed one of the coolest monitoring programs found in the PV world.  Each individual module reports its power output over the existing AC output wiring to your in home computer or with internet service, this data is directed to the company’s website where current and cumulative data is displayed and stored.

A good graphic says a thousand words so if you are interested check out this link to the Enphase monitoring examples.  http://enlighten.enphaseenergy.com/public/systems/BxqT67#.

Micro Inverters, Monitoring and Mountains.

PS – don’t those snowy spring peaks just look great in the distance?  It sure is nice to be working Solar in Montana.

Dan Brandborg
SBS Solar guru
dbrandbog@sbslink.com