Full system walkthrough, DIY HV Home Battery, solar trackers, panels, Hybrid Inverter, home assist.
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- Опубликовано: 6 сен 2024
- In this video, I will walk you through my complete solar system and finally I will give you the revenue and also the costs for this six months that now passed Jan-Jun 2023 
A huge thanks to all of my old and new subscribers, you really make me keep on going with a smile.😃
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What a great episode, this is the first DIY solar RUclipsr to show an accurate return on investment. I liked that you started by thoroughly describing your complete installation with all the details. With proper context, the number becomes more meaningful. Congrats on your fantastic installation. I was surprised that the difference between buy and sell prices was slight. I was under the impression that the utility company maintains a significant difference in their profit, but you showed that this is not the case, or maybe its because it is Sweden. Your numbers will be significant for my system design. Thanks again, Cheers.
Thank you so much for those kind words😃 This period has been unusual with negative energy prices and not so big fluctuations between the night time and daytime, so that’s why it was really hard to get a higher revenue. But we also have to keep in mind that I have not calculated with those self used kilowatt hours. I have left those out of the calculation so it is better in real life than it is on paper😅
But as you mentioned, I really try to not make it to look better than it really is.
It makes me happy that you appreciated that😊
Thank you so much for your comment👍🏻
Got 72kWh battery from 3 Nissan Leaf, they are easy to rewire to 14S/48V. Having one HV battery without opening it would be great, might be the next project. Started 10 years ago with lead/acid and expanded my PV over the years. No feed into the grid (my inverters are off grid), using all PV in my house, heatpump, EVs. Greetings from 52 deg North :-)
Hi, sounds as a great system you have there. Thank you so much for your comment. 😊👍🏻
Nice home/workshop and wonderfull scenery. Sweden looks really nice!
Thanks, yes I really love this place, thanks for your comment😊
Your HA dashboard was quite nice. Congrats!
Very interesting, and nice view
Greetings from Germany!
I am also very impressed by your Installation and it was interesting to see the Home Assistant Integration to control the whole energy flow.
I was stumbling to your youtube channel via the reuse of Volkswagen Batteries, then I saw the video where you renewewed the batteries of a VW city stromer. Here in germany VW is a very popular and strong brand which had a lot of problems and a lot of different Managers over the last years. Currently I am a bit worried about their future.
Keep on with your very interesting projects where I have just startet my "Abo" as we say here in germany to see what is going to happen to your electic boat project!
All the best from germany again and one last remark: your english is excellent!
Best regards!
☝
Hi, and thank you so much 🤩 I’m so glad to have you here 🤗
Thanks for the tour!
Thank you for watching😃
Thanks for sharing, that's a nice revenue in half a year, it will take some years to recover from the cost, but you have a powerfull solution to fight off high prices! Wondering how the small boat will run, if you have a small lifepo4 battery to spare it might make the boat more smooth in sailing, and you might return home when there are clouds. Enjoy the sunny weather!
I have a simple 110ah lead acid battery at the moment and it works fine for this project. My plan is just to disconnect it when I switch to direct panel drive, or DPD as I call it😅.
Thanks for your input👍🏻😊
Great video!
Thanks🤩
Well done job,vey nice.
Thank you so much 🤩
Snyggt jobbat, verkligen en grym anläggning du har byggt! 🤩
Har länge tänkt bygga något med Home Assistant, är nog dags för det framöver. Styrningen av batteriet såg ju verkligen bra ut! 😃
Tack🤩 Ja det känns bra att börja bli klar med detta projektet. Lite småfix o test får det ju bli framöver iaf😉
Jättekul att du uppskattar det😃👍🏻
HejHej :) Love your content! Luckily RUclips recommended your videos about your EV-Golf :)
But i'm also very interested in your solar-tracker setup! Did you build the construction by yourself? Maybe you can do a video with more details 🤗 i would really appreciate that!
Hej😃
Thank you so much. Yes I have built it myself directly out of my head so I don’t have any blueprints or anything like that but maybe I can do a video in the future where I go in a little deeper on it. Thank you so much for your comment. I’m glad that you like my contents 😃
Hello Sir, very interesting and informative, will be working on a similar setup soon. Thank you
Thank you😃
Good luck with your project👍🏻
Would Love to see some Cooking Video's. BBQ and the Like. After All your Outdoor is Heaven.
Thank you so much I’m so glad that you like it😃
Just saw that Renogy have small rigid 220Watt Bifacial panels.... ( Some to test on your solar Tracker 😉)
That had been interesting👍🏻
Hi, and thank you for all your very interesting and informative videos! It is a great pleasure watching the progress. I am using the same inverter as you, a Solax 15 kW with Solax batteries (23 kWh) and a CM10 from Checkwatt for grid freq balance.
I am considering expanding my setup with another inverter, similar to your Growatt installation. I was wondering what the best solution is for connecting it?
Right now, I am using an energy meter from Solax connected at the incoming point next to the energy company's meter.
But I am wondering if there will be problems for the Solax when more power is added on the "inside," so to say.
How have you connected the Solax and Growatt together?
Thanks again for all your shared experience!
Hi and thank you so much 😊 You need to connect the new inverter on the outside of the energy meter, assuming that it is a non hybrid inverter.
Hope it helps ☺️
Very interested to hear your Usage/Charges and how much you earn from the grid. As of July '23 I signed up in Victoria Australia and I'm getting Night time energy "Ev Interval" for just under $0.08 cents kWh (no cap) 0.55752 Krona and I sell my solar for $0.10cents kWh. I try not to use Peak energy from 3pm to 9pm so I use an off grid set up. I do use some of peak electricity.
Everything I saw in this video are amazing. 😊
But why are you using Solax inverter and not other?
And what do you thing about new Deye inverters, what can handle voltage like this or maybe a little more?
Hi!
Thank you so much!
Solax can handle battery voltage between 200v to 600v and you can set all the charging and discharge parameters to use it in lead acid mode (or lithium if you know what you are doing) it will all so handle 3 phase off grid, and I am not sure if deye can handle that. Deye will only work with 48v, and that’s a complete deal breaker for my. Been there, done that… Thank you so much for watching and asking ☺️
What a amazin spot!
No issue's whit such a long cable from the panels to your house?
Hi and thank you😃
No it works perfect. 6mm2 and 700v makes the power loss low, around 2%. 10mm2 would be even better, 1,4% loss but the gain will not make up for the costs.
This is all very impressive.
Have you considered using those enormous rocks for gathering and storing heat from the sun?
Hi, and thank you.😊
Where I live, it’s a very short period when it should be possible to gathering heat from those rocks, so sadly it will not be worth it . But it is a good thought👍🏻
Thank you so much for your comment 😊
@@flyingtools What sort of ideas would you expect from an Australian? I learnt something, thank you.
Wow, mycket bra film! Gott jobb!
Tack snälla😃
Looks pretty cool, but am I right in assuming you have no communication between the inverter and the BMS (like CANBUS or RS485) ?
Thanks, no, only modbus from a
raspberry pi that takes care of everything, Soc and so on. Then I have a standalone orion2 108s BMS.
How many kWh battery storage do you have there on that trailer? That seems like an amazing build. Also a great idea to keep the battery "mobile" and on a safe distance from your buildings. I love it...
Hi, and thank you so much😃
62kWh plus 6,85kWh with that extra module. Tot 68,8kWh
That is a lot, cool!
I am also located in Sweden and are planning for a similar setup in the near future. Similar in terms of storing energy from solar and/or grid and exporting from solar and/or batteries. All to be automated in a price optimized manner.
Where in Sweden are you located?
Could you show more info about wooden frame for those 20 panels?
Hi, I will make a video about it, but it’s really simple an Mother Nature is the one ho decided where the beams ended up to be😉
Very nice Installation. Cool! May I ask you the type of electrical cable you did use in order to connect your up-hill plant to your in house system. What type of cable is it?
Thanks.😃 Solar cable is what I have used.
Astonishing work. Well done.
Do you plan to extend your system by second car battery?
Why did you choose high voltage storage over 48V?
Hi, yes I have a thought about it but it is not really necessary. I maybe will expand it with one more module, and after that I will have a 75 kWh.
I earlier had a 48 V system but it is so inefficient compared to a high voltage system. Big cables, high amps, voltage drop, heat, no certified inverters that I can use here in Sweden, so I can feed in my excessive power from the panels and probably some more reasons😅 The only downside with this high voltage system is that it is not so many companies that sell bms:es to those batteries, and then it is dangerous, of course…
Thank you so much for your comment 😊
@@flyingtools Thanks for your reply, man. Another question is why you keep battery on a trailer outside? Of course, I see pros and cons, like possible fire outside of home and on the other hand different weather conditions, especially low Swedish temperatures.
How this one extra battery modul is balance ? I see there is extra BMS for that, but how it will communicated whit Orion2 BMS and rest of modules ?
Hi. It doesn’t communicate with the Orion bms, it only protects that single module.
That is not recommended at all and was mostly done as a test. Now I use that module in my Vw golf citystromer battery project. Good question there👍🏻
Thank you 😊
Hello! Great video! Which intergration due you use in Home Assistant in order to have the energy prices? Greetings from Portugal
Hi, thank you😃!
I am using Nordpool.
Hello, what about the SOC? usually Solax battery communicate with the inverter for us to know the right SOC, your system uses a manually configured battery, is the SOC calculated using the configured voltages? Do you feel the SOC is right value? Great project, keep going!
Hi. I run the inverter in lead acid mode, then it is not necessary to have a communication between the battery and the inverter, so I have only set it up manually to the highest and lowest voltage. And then my Home Assistant calculate the state of charge regards to the cell chemistry specifications that I have coded in Home Assistant and then the micro computer will give the inverter charge and discharge current info. Hope you understand what I mean it’s a little hard to explain.😅
Thank you so much for your comment 😊
@@flyingtools I understand, i ask because voltage in lithium not always translate to SOC, Home assistant is doing that for you, the solax alone will only watch for voltage, very good thank you.
Have you had any thoughts about calculating the savings from "time-shifting" grid usage from expensive hours to cheap hours, or from your buying cheap and selling expensive kWh ? I think the aggregate summary of sold vs. bought hides some of the value of hourly price arbitrage but I may be wrong.
I have thought about it but it is hard to get it right. I’m only charging to when I need, and sometimes only to sell it back to the grid. And somtimes as today I charge in the middle of the day due to the negative energy prices.
It’s a really good thought but nothing that I have plans to do.
Maybe Home assistant can help me with that in the future.
Thank you so much for your comment.☺️
My thought is to pull hourly prices, house consumption and grid consumption for each hour to make a daily difference between the cost of grid use (mostly night time) and the cost that would have been paid if house consumption was pulled from grid rather than from my battery. I will try this in NodeRed because of its tight integration with Victron but since you have all the other data in HA it shouldn't be too hard to add a couple of additional logged/ calculated values.
Surprised that this isn't a thing yet.
Anyway, thanks for this great channel!
@@JonasSandell the Nord Pool custom component is already available and with some clever rules for when to charge and discharge and a correct list of the costs of batteries kWh, it should be pretty straightforward to get this rolling. Perhaps add in a weather service for solar prediction aswell to add additional value.
Thanks for the insight. Hint: are the trees behind your house tall enough to be able to fall on your roof? then would cut them down :-|
Thanks. Maybe the top on some trees will reach the house. So they will be left for a few years. But they are fully grown so they are ready to sell any way, before they self die or fall…
Thanks for your comment 😊
@@flyingtools because it happend here X-D 30 year old poplar trees (planted to close together) hit a garage with solar and it was covered by insurance but still! X-D (climate change might also send heftier storms...)
I'd add two more panels to the back of the boat 😂
Thats my plan😅
👍😁
Can you explain haw is working frequency balancing and how much did you earn from frequency balancing?
In this video I talk a little more about that.
ruclips.net/video/LSIHgd4oYgs/видео.html
How much I earn on it will I find out first after one year so right now I don’t know that, but normally it use to be around 2000 to 2500euro/year.
hi
nice videos
i live in Sweden too
i would like to know if it´s possible to buy easily an old car battery to make a powerwall ?
Hi and thank you.
You have to pick it up by yourself, and I have bought the most of my batterys in Norway. Most junkyards don’t sell directly to private persons, so it’s easier if you have a company that are willing to help you.
thanks for your answer
i need to investigate because i don´t have a Norway contact
Jaw Drop.
Thanks man☺️
Hvordan får en kjøpt batterier til 1000kr/kWt? =)
Kult at du deler konstruksjonen, tallene, osv med oss. Veldig gøy!
Hej. De flesta batterierna har jag köpt på en bilskrot i Norge, mest för att det varit störst utbud där. Priserna på de större batterierna är ungefär detsamma i Norge och Sverige.
Tyvärr börjar det bli svårt att komma åt dem då väldigt många köper dessa batterier nu, det fanns betydligt fler att välja på för ett år sedan och då gick det även att förhandla till sig ett bra pris😉
Tack för din kommentar😊
hi
hello do you have an experience to create an electric generator in a small river?
No, sadly not.
I guess the tax credit has a huge impact considering that you get 0,145€ / kWh instead of 0,095€ - so 50% more
But that can also become the achilles heel once the government will have to cut costs again . At the end it is hard to make an investment decision for such system based on tax credits if those can be cut again.
Here it is about 0,08€ / kWh while you have to pay 0,40€ for each kWh from the grid. But you have a guarante over 20 years for the 0,08€ feed in tarif or you can decide to sell the kWh youself which is great but can be challenging on days when the market price on the exchange can be -0,50€ / kWh . So you have to stop then if you are a self marketing guy cause otherwise you would have to pay 50 cent per kWh you feed into the grid.
Yes you are right, if they take away that I will charge my battery more from the sun. But this period has also been extremely cheap and we have had a lot of days with negative pricing and that is not normal. And as I mentioned, I can not se how many kWh I have used directly from the sun or grid, so I have left those extra + 3000kwh out of this calculation, but I’m sure that the most of them is used from the sun, because that is how I use to charge my car. So I is probably a lot better then I think.
hi, where is "here'? please. I'm trying to compare energy charges, feed in tariff, EV Intervals compared with the rest of the world.
@@mikeycbd this is in Sweden.
Where did you purchased the inverter solax?
A local dealer.
@@flyingtools how much was it?