Jump to content

Off-Grid System about Battery Calculation Trouble


semiht
 Share

Recommended Posts

Hi,
I'm creating a off-grid system. I have 24500kWh consumption for year, and month of January is top with 2532kWh(per day about 84kw). I calculated and using 81 pieces 395W solar panels. And system have configuration of inverters like that:
3x5kw inverter for mpp1+2 1x15 (total 45 modules) and 2x6.5kw inverter for mpp1 1x9 and mpp2 1x9 (total 36 modules). There is no problem until to this point.

I want to work system about autonomy like 2 days. as i calculated: 2x84kw=168kw. when i take in losses. 168/0.76=221. up to nearly 225kw.

But when in pvsol, the program dont let the simulate under 390kwh total battery power. I cant solve that problem. Please help.

my panel is 24v, inverters are gw5k-et and gw6.5k-et, used batteries are li-on 24v 180ah 4.75kw (2 series 43 strings configurated by the pvsol). sunny time per day is 3.5 hours

Thanks.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...