Skip to content
View in the app

A better way to browse. Learn more.

Power Forum - Renewable Energy Discussion

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Marcodp

Members
  • Joined

  • Last visited

  1. I have just been asked a question which I was sure I knew the answer to, but you never know :-) .... one is always open to learning :-) I have a north facing roof, with no trees or obstructions creating shade, on which I have 3 strings - 2 of the strings consists of 8 x 375w panels (total of 16 x 375w panels) and a 3rd string of 8 x 545w panels. The roof area does not allow for all the panels to be installed in Portrait which means that 2 panels in the 3rd string had to be installed Landscape orientation - see picture provided. The question is if anyone sees any issues with this - mounting a number of panels in a string as portrait and others landscape? Note: I cannot split the 2 Landscape panels out into another string as the startup voltage requires more than the 2 panels can produce and there is no space for any additional panels to be added. PS: If you ask Google AI the question it comes back with: Yes, you can mount solar panels in the same string with both portrait and landscape orientations, but it is not recommended because it can lead to inefficiencies and potential performance issues. Mixing orientations within a single string can cause power losses, especially if there is partial shading, because the different panel layouts can affect how bypass diodes work. For optimal performance, it is best to dedicate each string to a single orientation. Mindful that I mentioned there is no shading or obstructions and all panels are facing North - does anyone have any thoughts/input as to this being a real issue or am I good with the way it is? In the spirit of learning, any thoughts or input is always appreciated Thanks
  2.    -cK- reacted to a post in a topic: Hubble AM-5 batteries discharge question
  3. PROBLEM SOLVED! I am actually a little embarrased as I should have checked his settings before posting - nevertheless the point here is never assume that your installer setup your installation correctly :-( In essence, everyone was correct - the dip switch settings on 2 batteries were wrong as well as the communication cables were not in the correct ports - thanks @-cK- and @I84RiS - your posts made me double check my friends settings and we found it. Herewith the correct settings / cable ports (he has a 12kwh Deye Inverter with 3 x Hubble AM-5 batteries). The Picture of the Li-BMS now shows the 300A that was missing previously :-)
  4.    Marcodp reacted to a post in a topic: Hubble AM-5 batteries discharge question
  5.    Marcodp reacted to a post in a topic: Hubble AM-5 batteries discharge question
  6. Hi, I am posting this topic on behalf of a good friend who is questioning the discharge of his Hubble AM-5 batteries - he has a Deye 12kw 3-phase Inverter with 3 x Hubble AM-5 batteries with a total of ~15kwh (installed approx. 3-years ago). The Hubble AM-5 batteries are 1c batteries, so in theory he should be able to discharge at approx. 7kwh) Hopefully someone can provide some insights into why the below is happening/what is configured incorrectly. In summary, looking at his battery use, the discharge never seems to exceed 5k from his batteries even if his load exceeds that - as an example, I have attached a picture/graph showing his load above 6k (6311w) and yet his batteries are only providing 4.9k and he is pulling the rest from Eskom (1.15k) even though there is battery capacity available - why would this be happening as he should be able to pull the full load/requirement from his battery (and pull zero from Eskom). I have also attached his battery settings and BMS as well as a graph from Solar Essentials showing his battery has never exceeded 5k Does anyone have any insights into why this behaviour could be happening? Thanks M
  7.    Marcodp reacted to a post in a topic: Eskom Solar Registration
  8.    Marcodp reacted to a post in a topic: Eskom Solar Registration
  9.    Marcodp reacted to a post in a topic: Eskom Solar Registration
  10. Thanks Bobster, the question was more around the Eskom requirements (I already have a CoC) but there are other requirements posted by Eskom- I eventually got hold of what I understand is the correct info (form) which needs to be signed by a ECSA professional (PrEng or PrTech) registered person (see attachments below) - this is on top of the CoC from what I understand. Regarding the meter, I understand the thinking (to be able to feed back into the grid/sell excess back to Eskom), but what if a person does not want to do this / will never want to do this - does one have a choice or is it set in stone that a person must just pay the fees (R3.5 to R4.8k) and get a new meter and so be it? - I currently have no intention to sell excess back to Eskom and do not need/want a new meter so the thinking is why then must a person pay R5K for something they do not need or want (that is what a CT coil is for) But that said, thanks for the insights - all input is always appreciated. DistributionSmall Scale Embedded Generators - DistributionOur shift towards more integrated electricity systems and new energy solutions has seen a growing number of consumers generating and distributing their own Compliance-Certificated-report-from-Customer-REV-AprilFinal.pdf 20220401-Eskom-Application-Form-for-SSEGAprilFinal.pdf 20240703-SSEG-Application-process.docx.pdf
  11.    Marcodp reacted to a post in a topic: Eskom Solar Registration
  12.    Marcodp reacted to a post in a topic: Eskom Solar Registration
  13. Hi, I understand that those with solar installation have to register with Eskom before March 2026, in order to avoid penalties - I further understand that Eskom is waving any potential registration fees until this time for systems below 50 or 100 kwh. I also recently received a SMS from Eskom as follows: Eskom ref 969...... A photovoltaic (PV) installation has been identified on your property. Please apply to have your installation authorised to avoid and further action. For more details, visit: https://www.eskom.co.za/distribution/small-scale-embedded-generators/ I did a quick search and found the Eskom Requirements as follows: Eskom on solar registration fees | South African Government https://www.gov.za/news/media-statements/eskom-solar-registration-fees-01-apr-2025 Looking at this website, I extracted three requirements, as follows: Ensuring that equipment complies with South African standards (NRS 097-2). This will remain in place until the SABS finalises Low Voltage Regulation rules for SSEGs. Having a registered engineer or technologist sign off on the Embedded Generator Installation (EGI) report to ensure the safe integration of the system, as requested in the NERSA guidelines. Obtaining the required Certificate of Compliance (CoC) for internal wiring of the property I then see that: One must pay a deposit of between R3500 to R4800, and Eskom will install a and code the Smart Meter and the customer will be converted to the Homeflex tariff. I have 4 questions, on the above requirements, that I am hoping can be answered: Question 1: Where can these South African standards (NRS 097-2) be found? - how does a person determine if their system meets these standards? Question 2: Where does a person find a registered engineer (or technologist) to sign off on the Embedded Generator Installation (EGI) report - I am Cape Town based (Does anyone know anyone) Question 3: Why do we need a smart meter (do they actually come and install these?) - what is this going to do for a person (is it better or worse than the current meter) Question 4: What is the Homeflex tariff - is this a higher or lower rate ? .... can anyone throw any light on this tariff and what this means (in laymans terms)? I am sure many people have these same questions so I am hoping we can start the discussion here. Thank you Eskom Solar Registration - Google search 11 July 2025.pdf
  14.    mzezman reacted to a post in a topic: Raspberry Pi 3B with PSU and Case - R550
  15. Hi Marius - do you still have these?
  16. Just for Interest - I also found this on the diysolarforum - I think this is on a 16kw Sunsynk inverter Deye 16K and SunSynk, Neutral/Earth(Ground) Bonding in "Signal Island Mode" HOWTO | DIY Solar Power Forum Perhaps someone will comment on the accuracy of this post/diagram from 25 Feb 2023?
  17. Hi I recently got into a discussion on Neutral Earth bond on Sunsynk/Deye inverters and have found that many of the people I know dont have this installed / setup in their installations (although they have CoC's) I understand that this is a requirement to obtain a CoC nowdays, and wanted to ask those that know, how one would set this up / wire this on a Deye/Sunsynk 8kwh Inverter. I have tried to read up on this but the threads can get a bit confusing so I wanted to try simplify it if possible. As a starting point, I looked at both the Sunsynk & Deye Manuals - see image (both use ATS as the trigger?) If this is correct, would the 2nd figure shown be the correct way to wire a Contactor (Normally Open 20a) - any input/corrections would be appreciated.
  18. Does anyone know of, or dealt with, this company: https://gotechenergysolar.co.za Prices look good (too good actually), and their listed address is Coricraft according to Google Maps? Their "need help" link goes to Google as does the "Sales Team" link on their home page. Their returns policy refers to Unboxed deals, Online Course codes and Bundles - none of which are sold. They also duplicate products on the website with different prices (e.g. Dyness BX51100 for R13.4k and another for R14.9k) Their FAQ's page references a number of pages on another US based website https://www.energysage.com/ Just too many red lights!
  19.    AfricanTech reacted to a post in a topic: The Solar Mart
  20.    AfricanTech reacted to a post in a topic: The Solar Mart
  21.    AfricanTech reacted to a post in a topic: The Solar Mart
  22.    Demo reacted to a post in a topic: The Solar Mart
  23. The Solar industry is just as susceptible to fraud as is any other industry - know how these guys operate: Firstly, this website is hosted by Cloudfare who hide behind company disclaimers, and the site owners/registers are almost always Gmail accounts. In essence you can report them (i.e. Cloudfare & gmail), but chances are not a lot will happen - if you do by chance get it right these guys just establish new sites and new email accounts and continue operating. When payments are made, the second the funds hit their bank account the money is moved - this makes recovery nearly impossible (so the funds are effectively gone). When their accounts are frozen (reports of fraud), the accounts are just abandoned and new accounts opened. Upside - SA banks are governed by regulations managed by the Prudential Authority (SARB) - some of the regulations include FICA and KYC (Know Your Customer) amongst others: Banks are obliged to: * FICA all clients * Complete Anti-money laundering checks * Complete KYC (Know your client) and have the details on hand, including: * A valid SA id * Proof of Address * Income Tax (SARS) * Bank Statement * Tax clearance certificate (if offshore) * Proof of authority (if acting on behalf of someone) They are also obliged to: * Do ongoing monitoring * Understand their client's business structures * Understand their client's source of income/wealth google the above to check ... They at minimum must have their clients ID(s) and the details of the bank account owners and should provide these to SAPS. Follow the money and you will find the individuals responsible - from a money perspective, as much as we would all like to recover our cash, in most instances you will need to write this off against a hard lesson / school fees 😞 - avoid cheap prices and buy products from companies you know as legit (even if more expensive).
  24.    Deez88 reacted to a post in a topic: The Solar Mart
  25.    Deez88 reacted to a post in a topic: The Solar Mart
  26.    Youda reacted to a post in a topic: The Solar Mart
  27.    Youda reacted to a post in a topic: The Solar Mart
  28. Check out the response I just got from them now - probably after they saw my post above. Their SCAM is obvious for all to see ... most certainly a fraudulent company/website..... it needs to be shut down!
  29. Hello all, I initially posted some feedback (above) and then edited my feedback to "interesting" after I got a threatening email from them to take things further (see pic below) - read it ("persuade further" 🤐)... and then updated again with a summary after posting the below. In summary - as it stands today (06/02), it looks like my money is gone - I have opened a criminal case of fraud against this company and reported them to their bank. Read my experience and make your own mind up. PS: Herewith some initial warning signs that I missed: No phone Number, no unit number shown on their address and they only accept EFT...oh and they only have 1 unit left (isn't this always the case to hook you). I also called the Infinity Business Park property administrators who did not know of this company. Here is my experience - They are excellent responding to the chat on their website as well as by email. Thier site looks good, and their prices look even better than most (maybe this is also a warning sign) ... in short everything looks legit. You can create an account, log in and track your orders etc. In my experience, there is nothing that makes one feel there is something wrong. After chatting to them on their website (they were very responsive) I placed my order (I have attached my chat as reference) - everything sounded great. After I placed my order, their response was excellent, an account was created for me, I got an invoice, and I got an email advising me of EFT details - I was advised that the order is on hold until payment had been received. The email correspondence looks excellent, wording and language is good all very professional. I paid immediately by EFT and advised them I had done so - they advised that they ship the goods once the funds reflect into their account. all good so far .... so, I thought 😞 As my order was placed on Saturday and I belong to another Bank, I did not expect the funds to reflect on Monday, so I let Monday pass. On Tuesday morning I emailed them and asked for an update where they responded that the money had not yet reflected into their account. This seemed strange so I contacted my bank (Nedbank) who advised that Capitec had received the funds on Monday already and sent me a bank PoP which I then forwarded to them and asked for an update. They responded (relatively quickly) and advised that they would send this to their admin dept to check. then silence for the rest of the day ... On Wednesday morning I sent a follow-up email advising that since they had received the funds on Monday, if they did not ship the goods, they need to cancel my order and refund me (by this stage I was already very anxious) Their response was professional ...but look at it and you will see its rubbish - I attached it below for all to see (honestly people must think everyone is stupid) - they first tell me the money was returned and shows on their bank statement...... then later they say it was a normal Capitec branch code and not a Business branch code that was used (really??) - and then tell me to ask the bank to recall it (I thought is was already returned) .... look at the feedback and make up your own mind. It is now Thursday, and I have no goods and no money and no further feedback - the bank believes that there is little chance of recovering the funds. Looking at the above and the pics below - will you buy from this company? Clearly, the stupid person here is me - I just got scammed for R33k - I am beyond pissed off Note: If anything changes - If I get my order or I get my money back, I will update this post... until then, the above is the current status!
  30. This is a SCAM company/website ... read posts below - I was an idiot and got caught 🤬 (I was desperate and acted too quickly/irresponsibly after loadshedding kicked in last Friday) and ordered an additional battery for 33k (and lost the money). Hindsight is 20/20 vision 😞 Warning signs: No phone number, no unit number on address, loads of links don't work, some content is in the wrong place, returns include gift vouchers which is not sold, only accept EFT, and if you reverse lookup the pictures, they are all generic/copied from other sites and probably more if you look closer. I did a reverse google image lookup and found this site with the same pics: Danhofer Solar – your partner for high-quality photovoltaic systems I have opened a case of Fraud at SAPS as well as the local banks, including their bank which is Capitec. At this stage I am hoping I am the only chop that got caught by these SCAMMERS and want to make sure no-one else gets caught - this site needs to be shutdown, the money trail followed, and these bastards locked away for good. Perhaps an idea is for "The Power Forum" to start a page of Solar/Power companies caught out scamming people, Companies with Poor ratings etc, as a service to its members ... just an idea 🙂
  31. I am hoping someone can provide insights into this scenario or has experience doing something like this 😀. I have an existing Solar installation which includes 3 x Dyness BX51100 5.1kwh batteries connecting to a Deye 8Kw Inverter. The current battery configuration is not sufficient, and I now want to add additional batteries into the mix - there are multiple options, but I have questions/concerns, as follows: Question 1. Can one add "new" batteries (of the same make/size) to a 2-year-old installation? - the specs say you can have up to30 Dyness BX51100 batteries in parallel, but my question is how will the "new" batteries impact the older batteries (or vica versa) or is this not something one should be concerned about? Question 2. Do you have to add the same make/model/size battery into the mix - as an example, can I add a larger Dyness battery into the mix - In other words, can I connect a Dyness 14.3 kwh Power Brick to the existing 3 x Dyness BX51100 5.1 kwh batteries (connect them all in parallel)? Question 3: Can one connect different makes of batteries together (i.e. a Hubble to a Dyness or other)? I have been trying to do a search for an answer to these questions but cannot find anything of substance. Is there anyone with real world experience or insights? Thanks
  32. Agreed ...

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.