Thank you for the great forum, Safe Driving over the weekend. Sincerely Jason
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Our picks
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10 x Dyness 9.6kWh Lithium Power Boxes Available!
Energy posted a topic in The Powerforum Store,
Dear All, As per the attached we have secured 10 x off the attached units. Units are in stock.
Dyness 9.6kWh Units in stock. Compatible with a host of Inverters.
R69 000 Including Vat Per 9.6kWh Unit.
10 Units available and in stock.
Please contact [email protected] ; Subject Dyness.
Sincerely
Jason-
- 1 reply
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Energy, -
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Planning a 2 x 3kW Vicron System
oddysee posted a topic in Starting In Solar? Feel free to introduce yourself,
Greetings all! It's been a long time since I've been lured out of the shadows into signing up on a new forum. What a great place this is - hats off to all the community leaders!
While I'm new to solar energy, I'm a long time petrol generator user. In my previous city, it was commonplace to use a generator when the grid choked. In the land of wine and fynbos, however, I hear no generators and I'm loathe to disturb the peace - not to mention that I no longer have a dedicated generator circuit. So, I've decided to part ways with my Honda 6.5kVA genny to pave the way for some Vicron goodness. Things appear to be worse than they've ever been so going green and sustainable seems inevitable.
Until recently, I decided I would "settle" with Goodwe due to the integrated MPPT charge controller, cost saving and NRS approval. My first love was always a Victron though and I'm leaning more towards this brand once more. I'm particularly sold on the rave reviews, flexibility and their app. The VictronConnect app has to be the best there is! I'm an IoT guy and this sorta thing is super important to me. I don't only want to consult a small LCD screen on the wall or do battle with an app that doesn't update properly.
My casual obsession and nightly research has led me to plan a system around the Victron MP II 48/3000. While I'd love to spring for the 48/5000, it's not possible right now. In order to get a "foot in the door", I figured I'd start with the 3kW now and then add another 6 months later. Good or bad idea?
In terms of solar panels, I'm not really sold on anything right now. Battery-wise, I started off being 100% sold on PylonTech US2000B but I'm now intrigued by the UFO 5kWh. I don't have a ton of garage floor space but have some great wall space that is already next to a mini-DB.
Fire away, gents!-
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- 12 replies
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Energy, -
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Goodwe vs others
markus_m2 posted a topic in Inverters,
Hey guys,
Been doing a lot of reading here - some brilliant advice and posts.
I'm looking at installing a hybrid system - around 4.5kW Inverter, 3.6kWp PV and probably 2 Pylontech 3000s, largely DIY.
So here's the question - what brand inverter?
Leaning towards the Goodwe as a brilliant little all-rounder. Seems to include all function we require in one unit, good quality, easy install, and all at a pretty reasonable price.
But what would we be missing out on compared to the competition?
Thinking specifically Victron and/or SMA - what extra features and enhancements do these offer over the Goodwe? I hear the Goodwe is a little limited in the setup / programming one can do - this'd be a serious drawback for me. Are the others worth the extra expense and complexity? (As I understand both these other systems one would need seperate modular units as opposed to Goodwe all-in-one)
Would really appreciate your guys' reasons for preferring one over the other...-
- 24 replies
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Energy, -
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Available Now : New 8 x Pylontech Pylon US2000 2.4kWh Li-Ion Solar Battery
Energy posted a topic in Classifieds,
Hi All I have 8 New in box x Pylon US2000 2.4kWh Li-Ion Solar Battery Available NOW for R12500 Excl Vat.
Please note first come first serve. They new stock from a project that did not continue.
All profits go to running of the forum - Thanks All.
I hope this is helpful.
Sincerely
Jason-
- 16 replies
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Energy, -
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What would you like to see on the online Store!
Energy posted a topic in The Powerforum Store,
Hi All
I would love your feedback, What items would you like to see on the online store at www.powerforum-store.co.za
All feedback welcome.
Sincerely
Jason-
- 7 replies
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By Jaco de Jongh · Posted
Depending on the setup and hardware in use and taking into consideration the conversion losses ext, a peak of 3200Whp will be realistic. Sometimes higher and sometime lower, but in that region. (Peak as in just before 12 midday) It will start at a few watts as the sun rises and increase to peak production and then start decreasing till sun under. -
Hi everyone, so I have absolutely no background in inverters and electrical work. I have a Mecer inverter connected to 4 batteries. I'm not sure of the make but the whole system was bought from Ellies in March 2019. The system worked perfectly even lasting 18 hours at one stage. But since January of this year, it would only last 2 hours of loadshedding. An electrician came out and tested the batteries and they were all perfect but when loadshedding hit the next day, same it died within 2 hours. It isn't overloaded at all but now it's not lasting the normal 18 hours. He even added 2 more batteries to see if it would help. Any idea why the system isn't lasting as long as it used to? -
Hi , Thanks ,yes this seems to be my problem. The inverter thinks the batteries are charged but they are not. I have changed 27 to 58. Still did not help. Is there some other way to fix this? Would a separate solar charge controller help? Looking for an ideas on how to resolve this. The solar panels get enough energy but because the inverter thinks the battery is charged it doesn't pull slot as it just takes what it needs for the load. -
Yea. I thought of rewiring it to lower the VOC. That is, 2S3P as I wasn't sure. I would give it a try. I also noticed that the max power it was able to pull , the PV was below 90v. Thanks -
Now that I have some spare time during the lock-down I am thinking that it is an excellent opportunity to kick-start a community based software development program for Axpert-like inverters. As this program is community based it will be freely available to all. (We could even post it on Github for all to benefit} I have written some software in Python and Python Gui for the Axpert, but I decided to try my hand in VB.Net (Visual Studio) and I have modified some code that was made available some time ago on this forum that was written in visual basic. I have turned this code upside down to get a handle on it and modified it to more or less do what I want. I am not a coder by the way and I am only Blessed by being able to read and understand Logic. My thinking is that I will start off with a relatively simple comprehensive program that I will share here and from there we will develop it into something that we can all use. My current format resembles a certain commercial one (which I like), so we will first have to alter it into something unique which we can call our own. Interested non-commercial developers are welcome to message me if they are keen to get involved. Non coders can share all their ideas here.....from design to wish-list. EDIT: And....Yes, the full code will be made available to all.
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