Renergy shadow flux panel

Product Discussion Solar Panel
1

I am new to solar and was going to purchase two Renergy shadow flux panels to use with my Elete 200 v2. I think they should work in parallel. Any advice? Am I missing anything
power 195W
open circut V 36.5V
Short circut V 6.86A
Fuse rating 15A
Thanks

1 Like
2

Yup, they will work well in Parallel. Do not connect in Series, the Voc will damage the 200 V2.

3

Thanks for the confirmation, Mandp

4

Helpful question and response to renogy panel question.

I will have similar question when I can post. Newbie here.

Thanks

5

Tagging on to conversation here. Why not in series vs parallel?

And does this same not-in’series advice tp ac300+b300k system? Cheers

6

@alvey1958 I assusme you are asking as you arer not familiar with series/parallel connections. If so, I’ll try explain in as simples terms.

When connecting 2 or more panels in Parallel, the calculation required to work out total output is this;
Take the lowest Vmp (Volts) of any of the panels (This is the volts used in the math) Add the Imp (Amps) of each panel for a total sum. Then multiply that Sum x the lowest Vmp for the expected Watts output…

When connecting 2 or more panels in Series, the calculation required to work out total output is this;
Take the lowest Imp (Amps) of any of the panels (This is the amps used in the math) Add the Vmp (Volts) of each panel for a total sum. Then multiply that Sum x the lowest Imp for the expected Watts output.

You will note - Parallel connection gives a lower voltage and higher amperage. This means possible more voltage drop over distance and a thicker wire gauge to carry the current (Amps). Whereas, Series connection gives a higher voltage with less current and therefore less % voltage drop.

The plus of parallel is that if one panel fails, the rest still work, but at a lower output. If one panel fails in series connection, all putput fails. More…

7

Where this applies to the input of a power station. - Bluetti power stations have an inbuilt MPPT solar controller. It, as with other brands can absorb Watts and Amps over their rated maximum, (Just wasted output that does not reach the battery being charged.)

The absolute, “Do NOT exceed” specification is the input volts i.e the Elite 200 v2’s limit is 60V. This voltage is derived from the solar panels, Voc value (no load voltage).
So the above panel values of the original poster is 36.5Voc and 6.86Isc. In Series the voltage is added and would be 73V, which exceeds the 60V limit and will damage the Elite 200 MPPT. In parallel the voltage is 36.5V and below the 60V limit. The amperage limit of the 200 v2 is 20A, so in parallel double 6.86 is 13.74 and below the 20A limit. Three panels in parallel = 36.5V and 3 x 6.86 =20.58A which is over the 20A, but will work ok without damage. Also, rarely will any solar panel output its rated wattage, that is tested in lab conditions, the real world “aint” that well controlled, lol.

8

forgot to mention, with the larger power stations, at a higher solar voltage input, series connection will be ok.
The original poster has a nominal 24V panel, had he a nominal 12V panel with a Voc in th low to mid 20V range, series would be at 45-48VDC and be ok as it is lower than the 60V max.

The AC300 can accept up to 150VDC input, so 4 panels in series will work, however in colder weather likely exceed 150V, so I would play safe with 3.