[RE-wrenches] Fronius IG vs IG Plus inverters

I foresee some more failures in the IG plus, the details of which I will not share here, but you can ask me off-list if you like. I will say that the IG plus has a trifling bracket design with rectangle holes that is not really strong enough to hold the inverter up on its own, and does not lend

Re: [RE-wrenches] Fronius IG vs IG Plus inverters

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

Re: [RE-wrenches] Fronius IG vs IG Plus inverters

HI August, Thanks for the note. I'm solely interested because of the voltage window - I always struggle around the 3.5-4.5 kW range for string inverters, particularly with SMA which is my general preference. I have defaulted to Enphase in some cases, but typically shy away from them because lack

Re: [RE-wrenches] Fronius IG vs IG Plus inverters

Hi Howe, Why are you still interested in the original IG? We've had a fairly high failure rate with the original IG and I wouldn't recommend going back to them unless you're getting some sort of amazing inventory clearance price... We have over 100 IG+s in the field with only two failures to dat

Re: [RE-wrenches] Fronius IG vs IG Plus inverters

I replaced the IG at my house 5 times under warranty (the circuit board failure that William described, no fires just some internal melting) before finally getting them to give me an IG+, which has been working flawlessly now for almost 2 years. As a company we replaced all of the IGs we installed-

Re: [RE-wrenches] Fronius IG vs IG Plus inverters

All I have had good experiences with the IG Plus. It is easy to work with and the different power stages make for a more efficient inverter. The IG however is not very good in my opinion. The groundfault cards tend to go bad due to poor ventilation. Dust and dirt tends to get trapped inside the in

Re: [RE-wrenches] Fronius IG vs IG Plus inverters

William, Thanks for the clarification on the disconnect - I vaguely remember this issue with Fronius we used in the distant past. As I remember, several manufacturers' early integrated disconnects were this way. All, Anyone else have a particularly poor track record with Fronius? Worse with the

Re: [RE-wrenches] Fronius IG vs IG Plus inverters

Howie: The IG has an integrated disconnect section, but it the electronics are not removable from the disconnect. Therefore it is not safe to replace an IG unless it is dark or you can tarp the modules. The Plus series has two chassis that mate. You can turn of the DC and remove the electr

Re: [RE-wrenches] Fronius IG vs IG Plus inverters

Thanks William - good to know. I gave up on Fronius because of production problems. Sorry to here it is still an issue. Howie -- Howie Michaelson NABCEP Certified Solar PV Installer™ Catamount Solar, LLC Renewable Energy Systems Sales and Service VT Solar & Wind Incentive Program Partner http:

Re: [RE-wrenches] Fronius IG vs IG Plus inverters

Multiple power stages in the Plus make for a more efficient inverter at lower solar outputs. Just installed six of the 11.4s and went really smoothly. Love the modular disconnects which the inverter literally plugs/drops into. Best regards, Mark Dickson, NABCEP Certified Solar PV Install

Re: [RE-wrenches] Fronius IG vs IG Plus inverters

Thanks for the feedback Kistopher. 1 question: I thought that the IG also came with the integrated AC/DC disco as well as the IG Plus. I know the IG doesn't come with the string fusing. Am I missing something here? Thanks, Howie -- Howie Michaelson NABCEP Certified Solar PV Installer™ Catamo

Re: [RE-wrenches] Fronius IG vs IG Plus inverters

Howie: The IG has flow-through ventilation (causes corrosion on circuit boards). The plus has a removable bottom section with fuses and DC disconnect. They both have failed for us at an alarming rate. William Miller At 09:24 AM 6/28/2011, you wrote: Hi All, Anyone care to relate the dif

Re: [RE-wrenches] Fronius IG vs IG Plus inverters

I have used both recently. The IG Plus is nice for two reasons: the integrated DC disconnect and the onboard string fusing/combining capability. Their tech support has been easy to work with and have reimbursed me for labor when needed with no questions asked. On Tue, Jun 28, 2011 at 11:24 AM, H

[RE-wrenches] Fronius IG vs IG Plus inverters

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