Recent content by Turkey Hollow Solar

How have your DS3 units been working? I agree...you need a wired connection to update firmware on the ECU (wifi interface), then for updating firmware on the microinverters, which happens automatically. They would then work without an internet connection, but you would not have the benefit...

https://krannich-solar.com/us-en/ We have been happy with Krannich Solar for our APSystems DS3-L units. Don't know if they have the 880VA version.

Could anyone elaborate on the grid-side causes for voltage spikes and microinverter drop-out? What kinds of grid events could cause a voltage spike? It only needs to be for 50ms to trip, so it could be noise. I've heard that service meters with Advanced Metering Infrastructure (AMI) remote...

Its a very nice build, and I appreciate that you shared it. American ingenuity at its finest! It looks like a fun project you have there...and a sensible path to energy independence. After seeing some of the creations people dream up on YouTube...cattle gates, mobile home trailer frames...

Good point about snow losses in PVWatts. The default settings is zero (under systems losses), but if the panels get covered with snow for days or weeks, it must become significant. We have seen impressive spikes in bifacial output after a fresh snow in winter. So it makes sense that...

The unistrut still looks good...seems like that would last forever! I bet the cross bracing helps in the wind. That design looks really nice. You could almost sell that as a kit just the way you built it.

Impressive unistrut creation there...thanks for sharing!

Very impressive re-engineering! What kind of steel is that for the strongbacks you added? Since the panels are bifacial, it makes sense to not shade the backsides if possible. Looks like your setup could be engineered to accomplish that. I looked, and was unable to find a ground mount system...

I totally agree on this...PVWatts does not (yet) consider bifacial panels in their main tool. Maybe included in other more complex tools that have? Before building our system this spring, we setup 4 bifacial panels for testing over the winter. We had 2 on an APSystems YC-600 (2 panels, 300W...

Goal is to accumulate maximum credits...local power allows transfer of credits to other customers, but not cash payment, for excess credits. Flat rate for Net Metering No option for that with our power company This was my thought also, which is why I did the analysis on PVWatts. No plans for...

Wow...thanks for checking that! I appreciate the help....it does help gain confidence!

Thanks for the link...very helpful!

Thanks for the helpful data. There seems like a ton more content on PVWatts that I haven't found time to explore!

Correct....we're not charging batteries, so the goal is the most kWH overall.

I don't know why 35 is conventional here....but I've heard that from a few suppliers and installers. 45deg is an interesting idea. Beneficial from both a snow shedding and backside uptake perspective. It could increase winter production from the bifacials (it really works...the modules go...