Recent content by JohnPoole

They highly subscribed engineer "with the Swiss accent", Andreas Spies, looks into the claim about why microconverters are needed. I've found Andreas' YouTube channel to be worthy of an Ivy League education in electronics. See his just-published (10/23/2022) video at:

Tigo TS4-A-O product at: https://www.tigoenergy.com/product/ts4-a-o From Tigo's about page: https://www.tigoenergy.com/about https://www.sma-america.com/products/solarinverters.html SMA "Headquarters: Niestetal, Germany" and "Founded: 1981" per...

@fafrd I'm not the one who had the problem. I simply posed a question to the manufacturer asking for an explanation and no response was given to my inquiry. @RichardB is the one who wrote about the problem he encountered in east Texas when the temperature got hot.

I never did receive a response from NEP. Recall, they did acknowledge receipt through the return-receipt facility in email.

@Warpspeed You can view transcripts of videos on YouTube. (1) Click the ellipsis, then (2) click "Show transcript" and the transcript will appear on the right: You're welcome! When I learned of this, I wondered how could I have been a viewer of YouTube so long and not known about this feature.

I commend readers of this thread to my posting on the Open Energy Monitor Forum https://community.openenergymonitor.org/t/open-source-microinverter-epilogue/20732/29

Thank you, @RichardB. I'd say that specification is pretty critical and ought to appear on their dimension diagram. Day 2. No response from NEP. I downloaded their PDF document entitled "BDM 600 LV INGLES" modified 3/10/21, and named it BDM-600-LV.pdf You might think they would have...

I sent an email to NEP at Jul 18, 2022, 9:59 PM Pacific Daylight Time which was acknolwedge by returned receipt 20 minutes later on "Mon, Jul 18, 10:18 PM". My email asked: [removed, see Reply #5 above] No response so far. I'll update with a reply to this topic if and when I receive a response.

@RichardB have you continued to have "shutdown" when the temperature exceeds 90F? Would you be willing to share what the unit cost of the BDM-600 was and/or where you procured it? CED? The data sheet for the BDM-600X | Dual 590Wac states: There seems to be a discrepancy between the stated...

NEP is the acronym for Northern Electric Power Technology Inc. which has a web site at: https://northernep.com The NEP BDM-600 and BDM-600X microinverters are at https://northernep.com/products/microinverters/bdm-600 CED Greentech (the AUBURN, MA office is listed at the contact point) is an...

@Warpspeed, au contrare. What you and your pals at The Back Shed have done is very helpful. Thank you very much for your initial posting and suggestions, it's opened an area to me that merits further investigation. My assessment is you're getting down to the nitty gritty, smoothing the curves...

I completed my first review of WarpSpeed's suggestion. His suggestion is kind of like drinking from a firehose. Conclusion: The Back Shed forum has a lot of low level/ hands on activity experimenting with inverters. Really good stuff and something more technical that what I am seeing in this...

@Warpspeed suggested The Back Shed per the above. A search on their site using their Google search facility for their web site did not return any results using the criteria '"open source" microinverter" (but did include a page full of 4 Ads suggested by Google)...

I was exploring what efforts, if any, have been made in the realm of open source for microconverters. I found this set of blog entries made over a span of 3 days. I thought if anyone else is interested in what has been done in terms of open source, this post might be a good place to start...

I watched a video created by NEP and it was blurry and became painful to view. The big question for me is: do they control your system? Do you have to register with them? Do you have to have a key generated by them? I'll have to ask: is there software open source? Just as Enphase "owns"...