Thank you for the great forum, Safe Driving over the weekend. Sincerely Jason
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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-
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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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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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It sounds like it's running loads from utility all night; is that correct? I'd check setting 01; if it's SOL (might be called something else; you didn't say exactly what model inverters you have) then you can change it to SbU to use the battery more and the mains less. Depending on just how big it is and how much you use it, but generally a modest inverter based air conditioner should be fine. It would help us a lot to tell us your values for these settings: 01 (Output source priority), 12 (Back to utility battery voltage), 13 (back to grid battery voltage), 16 (charger source priority), and 29 (low DC cutoff voltage). -
I don't believe that this will work. My understanding is that the bus soft start power supply / oscillator is only used at start-up to pre-charge the bus capacitors. With no load, it charges these capacitors to the ~375 V point (from poor memory) in a few seconds. So your 10 V per second bus voltage creep seems more like value drift of the bus voltage sensing resistors. Can you get a bus voltage reading from your software when the multimeter is reading 500 V? Another reading when the unit is cool and the bus voltage is near 375 V would be good.
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I am only surmising that from the steady current that the batteries seem to be drawing evidenced by the Table Mountain type shape of this on the image in my first post. During this time the household consumption is tracked almost exactly by grid supply until the batteries take over just before 12. This is the frustration, why can't the panels additionally supply the household needs when there is clearly capacity to do this in the middle of the day? As for new set up using your recommended settings, Cape Town just had it's first drizzly day in a long time and a late afternoon washing machine use has blown my best laid plans. -
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Ok are you going to be using the Pi to connect up the BMV as well and to control the inverter.
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