i am sure somewhere in the archives this has been spoken about,,,, when my van is at home i have a 110amp panel on my carport connected by prewired anderson plug which goes to my 20 amp mppt controller ,this maintains my house battery ,as long as i dont use anything in the van too much, now as regular readers will know i am a techo tragic. i am looking at installing another 110 amp panel (same as the first one) from what i have read on google brain there are two ways to do it, series or parellel ,the panels are already pre wired to anderson plugs so the easiest way is to parallel them ,is it worth wiring them in series to increase the voltage or keep the voltage and increase the amps? i have read if done in parallel you can get away with shaded areas on one panel and get a good charge, but if in series you only get the lowest charge from the shaded area ,i am probably getting involved in these things as at present i am not able to get on the road due to family issues (i have greater solar capacity when on the road its only an issue when parked up at home)