[RE-wrenches] Fronius IG vs IG Plus inverters

[Bob-O Schultze]

Howie,
I've had nothing but good luck with Fronius. I've had a few failures (what inverter manu doesn't?) but very few and Fronius has excellent tech support and  the best installer compensation program out there. I never load up any inverter to maximum PV watts if I can help it. I think that's a bad idea with any piece of electronics. 
I use both the IG and the IG Plus depending on the situation. Love the low PV voltage input on the IG, especially on small systems. While it's generally bad design to feed any inverter less than about 75% of it's MPPT window, sometimes ya gotta do what you gotta do. The multiple string inputs on the IG Plus doesn't do much for me. I prefer to put my series fusing up on the roof and in Oregon, we are now required to put a disco up there on nearly all systems anyway, so...why?
Cheers, bob-O

On Jun 28, 2011, at 9:24 AM, Howie Michaelson wrote:

Hi All,

Anyone care to relate the differences (pros/cons) of the Fronius IG vs. IG
Plus inverters?  Haven't used either and haven't dealt with Fronius in 5
or 6 years.

Thanks,
Howie
-- 
Howie Michaelson
NABCEP Certified Solar PV Installer™

Catamount Solar, LLC
Renewable Energy Systems Sales and Service
VT Solar & Wind Incentive Program Partner
http://www.CatamountSolar.com
802-272-0004