Min 5kW inverter with 2 separate PV inputs (and wi-fi)

Eric747

Active Member
Joined
Nov 3, 2007
Messages
68
I'm looking at upgrading my 2.4kW / 24V inverter with 5 kW, 48V system. Thing is I already have solar panels (4x250kW) but I will not be able to get more of them, so have to use different panels to add another 1kW PV. Since mixing the panels is not advisable, this will have to be separate bank of PVs.
What inverter provides for two separate PV inputs?
I also want to have wifi... Can be low or high voltage...
 

Mike Hoxbig

Honorary Master
Joined
Apr 25, 2010
Messages
43,328
Just rip out those panels and start fresh with min 400w ones. It's not worth the effort planning around them. Or maybe use them to power a pool pump or something.

As for inverters, the Sunsynk/Deye/Inge come with 2 built in MPPTs...
 

Mzezman

Expert Member
Joined
Nov 13, 2021
Messages
2,638
I'm looking at upgrading my 2.4kW / 24V inverter with 5 kW, 48V system. Thing is I already have solar panels (4x250kW) but I will not be able to get more of them, so have to use different panels to add another 1kW PV. Since mixing the panels is not advisable, this will have to be separate bank of PVs.
What inverter provides for two separate PV inputs?
I also want to have wifi... Can be low or high voltage...
Sunsynk / Deye 5kw will do just that... but like Mike said rather get new panels all round so that you benefit the most from the setup. Sunynk/Deye can take up to 6500w total in panels across the 2 MPPTs
 
Last edited:

Eric747

Active Member
Joined
Nov 3, 2007
Messages
68
Sunsynk / Deye / Growatt 5kw will do just that... but like Mike said rather get new panels all round so that you benefit the most from the setup. Sunynk/Deye can take up to 6500w total in panels across the 2 MPPTs
Growatt as well? Can't find it...
 

Kawak

Expert Member
Joined
Mar 14, 2007
Messages
1,107
You also have the option of the axpert max inverters, they are 8kw with dual mppt and costs are not bad at all, but, like mentioned previously, don't work around your old system, hardly worth the effort, keep it to power a part of your setup or sell it.

 

Mike Hoxbig

Honorary Master
Joined
Apr 25, 2010
Messages
43,328
You also have the option of the axpert max inverters, they are 8kw with dual mppt and costs are not bad at all, but, like mentioned previously, don't work around your old system, hardly worth the effort, keep it to power a part of your setup or sell it.

The biggest issue with that seems to be that it's an off-grid inverter. So you'll have to invest significantly in batteries and panels to actually go off grid.

Hybrid would make the most sense from a cost perspective, even though they're more extensive upfront. Since you'll have grid backup...
 

Kawak

Expert Member
Joined
Mar 14, 2007
Messages
1,107
The biggest issue with that seems to be that it's an off-grid inverter. So you'll have to invest significantly in batteries and panels to actually go off grid.

Hybrid would make the most sense from a cost perspective, even though they're more extensive upfront. Since you'll have grid backup...
It's hybrid, can even operate without batteries, looked into this one recently as I'm busy looking at expanding my solar.

Don't think there is an axpert that is totally off grid.
 

Eric747

Active Member
Joined
Nov 3, 2007
Messages
68
Thank you for replies guys, I went with inverter by Luxpower: 5kW, 2 x 3000W MPPT PV inputs, wi-fi, 100-385V DC input, confirmed to work with my Lithium batteries...
 
Top