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diy solar

Help me choose the right components on my first solar power system thanks ^_^

AWESOME GAMES INTERACTIVE

AWESOME GAMES INTERACTIVE

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Joined
Apr 30, 2020
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Hi everyone im building my first solar power system my brother has one but that was very expensive but also professional build
im building my own after watching DIY Solar Power with Will Prowse on youtube really love his enthusiasts about solar energy i figuerd out where to put them on my roof i just wanted to know if its okay to use some use solar panels i got an cheap offer on some 240watts 12volt panels

and I just ordered this one EASUN POWER 5000W 48V Solar Inverter 450Vdc 80A MPPT Parallel Inverter 230V Pure Sine Wave Hybrid Inverter 80A Battery Charger https://www.aliexpress.com/item/329...earchweb0_0,searchweb201602_,searchweb201603_

is it a good choice to power my house i dont think i need that much energy as long as it can power my pc and fridge fridge use 90watt my pc i dont know it has a 700watt psu i you can se how much energy i spendt over last month

i dont think i can afford lithium batteries right now so i was thinking about buying Deep Cycle Batterys it okay if they only last a year but i really dont know how many amp hours i can afford or need i have about 1300usd to buy batteries and panels for maybe i should wait a bit to buy batterys or just buy some small what would you guys recommend ?

and should i get a gas generator to charge batterys if theres days without sun ?

Thank you for your time :)
 

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don't know but i dont think so i know theres a lot to choose from i just needed it ship in eu so i avoid taxes on it taxes are insane i denmark if a orderd outside europe and a 4 weeks old youtube video told me it was the best right now
 
Dzl said:
This looks quite similar to the All-in-one @Meli27 just purchased for her bus
Click to expand...
It does! I recall her all-in-one specified 5000w max solar input, this is 4500w.
Did she ever get that connected to batteries to see if the idle draw was 75w and not 3A?
<for those not following the other thread, the 3A @ 48v is 3456wh each day! still waiting for results>
The idle draw would be important (for me anyway) to know in regards to recommending that system to anybody.

Do you think the 3000w 24v version would be better for a smaller system like the
OP here is proposing? There is another one even smaller too that I "think" was 2000w, 12v.
 
i just found a cheap teslacar battery 4 years old maybe i can use that for battery bank strip it don and bulid up48 volt batteris its only 200usd
 
I would recommend against buying this all-in-one because:
  1. It doesn't look like you need 5kW of power in the first place and the more power your device is capable of, the more losses you will suffer (because the more FETs need to be switched on and off whilst idle and the greater the number of FETs all dropping power whilst supplying loads).
  2. I would never recommend installing a 48V(nominal) battery system in a living area - shock hazard.
I would recommend designing a system that meets your needs.
 
Hello you thank you for your help but I have no more budget I’ll have to work with it some how but I do have a 24 v system but it’s not mppt it’s p some thing that’s only 2400 w
 
i just installed the whole system and it works super well its amazing i have free power now i just need a bigger power bank and will maybe put up a small 800 watts 48 volt wind turbine i will post pictures tommorow of my system
 
Here is my system set up and working fine but i found that one of the panels was at 15 amp and the others were at 13 amp i don't know if it makes any diffrence the 8 panels are set up in 4 series there is a combiner box with 2 13amp breakers I just used thick construction wire as I was not sure about wire thickness otherwise I had a lot of 2mm real solar wire but only in meter pieces so I soldered some pieces together I don't know if that's a bad idea or whether there will be any voltage drop,

i got 4 20amph batteries brand new very cheap from a man who sold electric cars where he replaced these batteries with lithium batteries i was afraid at first as the inverter would not start up as the user manual said you could use it without batteries but when i connected the batteries it started up just fine i got a cable to plug in my pc and update the powerwatch program

i have a 16 amp breaker after the converter i don't know if it was necessary but now it sits there and then i set up a switch to turn off batteries and switched to another battery bank so i can have 2 banks then i have heard it is not good to mix different batteries

and now i have been running everything free in my house for one day except the stove which uses 2200watt
i spendt 2056usd in total on every thing but i will spendt a little more on bigger battery bank

fell free to comment criticize or praise the work or make good suggestionsIMG_20200513_112206.jpgIMG_20200521_123230.jpgIMG_20200521_123349.jpgIMG_20200521_123458.jpgIMG_20200521_133018.jpgIMG_20200522_132533.jpgIMG_20200522_132554.jpgIMG_20200522_133917.jpgIMG_20200521_202902.jpg
 

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AWESOME GAMES INTERACTIVE said:
Here is my system set up and working fine but i found that one of the panels was at 15 amp and the others were at 13 amp i don't know if it makes any diffrence the 8 panels are set up in 4 series there is a combiner box with 2 13amp breakers I just used thick construction wire as I was not sure about wire thickness otherwise I had a lot of 2mm real solar wire but only in meter pieces so I soldered some pieces together I don't know if that's a bad idea or whether there will be any voltage drop,

i got 4 20amph batteries brand new very cheap from a man who sold electric cars where he replaced these batteries with lithium batteries i was afraid at first as the inverter would not start up as the user manual said you could use it without batteries but when i connected the batteries it started up just fine i got a cable to plug in my pc and update the powerwatch program

i have a 16 amp breaker after the converter i don't know if it was necessary but now it sits there and then i set up a switch to turn off batteries and switched to another battery bank so i can have 2 banks then i have heard it is not good to mix different batteries

and now i have been running everything free in my house for one day except the stove which uses 2200watt
i spendt 2056usd in total on every thing but i will spendt a little more on bigger battery bank

fell free to comment criticize or praise the work or make good suggestionsView attachment 13679View attachment 13680View attachment 13682View attachment 13683View attachment 13684View attachment 13685View attachment 13686View attachment 13687View attachment 13689
Click to expand...
You have a maximum 960Wh battery bank, and 1160per hour from solar...figure 1 hour max runtime from this configuration...
 
yeah i know i need a bigger bank will buy next week will start buying 150amh*4 at night theres only power for 120 minuts and then it swithes to grid power figued out my pc dose not use that much power
 
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