Going to add more panels in spring..the shade of winter is killin me… several new strings of larger panels , each string will go to its own Victron 100/50 and be totally separate on its way to the system and batts… no problem , I’m ok with this.
BUT …
I have plenty of room left for “a new string “ on the 150/ 100 CC I use now ,but I cannot find the “exact spec panels” anymore to match with the (16 panels ) I have now…bought them new 2 years ago ….they are no longer made exactly the same by renogy, for that same sized panel.
Everything is about 10% more efficient on all specs…they are still 100 watt panels ..
The old string I’m using joins at it’s combiner box /IMO / SPD etc, and feed to the 15O CC 65 ft away…it’s working fine.
. The new string (16 panels) like the old one will also be 4s4p and go to its own combiner box /IMO/ SPD etc ,and will join with the original string at the 150/100 CC in paralell….The two strings to the 150 will NOT be connected anywhere except at the input of the 150 CC , AND the bonding point of the chassis ground like all else in the system.
the 150 would be far better utilized with the new string ( slightly over paneled in perfect conditions) and way under its voltage limits In all conditions…
SO,
being the new ones are 10% higher numbers ( VOC- IMP - etc) ….will this :
1) drag the new ones down to the old ones output..?
2) combine to a new midpoint Output ...?
3) do something else I’m not thinking of…?
If I only get the production from the new ones that mirrors the old ones , I am fine with that…
Just trying to know before I buy panels after the first of the year…
Thanks J.
BUT …
I have plenty of room left for “a new string “ on the 150/ 100 CC I use now ,but I cannot find the “exact spec panels” anymore to match with the (16 panels ) I have now…bought them new 2 years ago ….they are no longer made exactly the same by renogy, for that same sized panel.
Everything is about 10% more efficient on all specs…they are still 100 watt panels ..
The old string I’m using joins at it’s combiner box /IMO / SPD etc, and feed to the 15O CC 65 ft away…it’s working fine.
. The new string (16 panels) like the old one will also be 4s4p and go to its own combiner box /IMO/ SPD etc ,and will join with the original string at the 150/100 CC in paralell….The two strings to the 150 will NOT be connected anywhere except at the input of the 150 CC , AND the bonding point of the chassis ground like all else in the system.
the 150 would be far better utilized with the new string ( slightly over paneled in perfect conditions) and way under its voltage limits In all conditions…
SO,
being the new ones are 10% higher numbers ( VOC- IMP - etc) ….will this :
1) drag the new ones down to the old ones output..?
2) combine to a new midpoint Output ...?
3) do something else I’m not thinking of…?
If I only get the production from the new ones that mirrors the old ones , I am fine with that…
Just trying to know before I buy panels after the first of the year…
Thanks J.