Search results

Yeah that would be me as well if this site didn't exist, will probably still be doing a bit of trail and error but much less thanks to people like yourself sir!

Thanks, the plan is to be in southern Europe or maybe even the Canary Islands during winter so we'll get much better production than here, thanks again for the help mate it is greatly appreciated! I don't know how I'd have figured this out on my own!

Thanks for the help mate, as long as the voltage is high enough for the MPPT to work it should be fine. I'm planning on being in pretty sunny conditions but my main worry was the MPPT not even starting cause of low voltage.

Awesome, thanks a lot for the help! Didn't see the voltage drop table before posting the thread. Looking at it it really seems like staying over 55v should be any problem!

Thanks! I think I'll go for it then and in worst case I might buy a MPPT with a lower voltage range if the yield isn't great!

Yeah the vmp is 39.7 so around 80 for the pair. Would that still be enough in lower light conditions though? Thanks! Spec sheet attached below, it's the 430w version I'm looking at.

Hi, I'm looking at getting this all in one inverter (...

Thanks again man, putting 2x22.8voc panels in parallel should be great for a 12v system right? Since I'd like to put them in parallel to get better shade tolerance.

Thanks alot, I'll check it out right away! The wire will be a maximum of 5 meters so it's not that far I think. Would going any higher than 30-40% be negative or does it work even if it's 100% higher? Thanks!

Thanks again! So there are no real benefits of going with higher voltage panels when using a 12v system? I'll still get the same current? We probably won't be using the panels below 15°C since that's about as cold as it gets in southern Spain during the days. Should I still use the numbers for -40°?

Would it be beneficial to use these 200w panels instead? They have a Voc over 40v instead of 20v...

I'll make a mechanism to tilt the PV but probably only about 30° or something like that and won't have it tilted 100% of the time. Regarding the panels as of now our best solution is to fit 4 180-200w panels on the roof. We have 180x310cm available but since we want to have 2 roof vents we can't...

Thank you, I'll probably go with a 12v system since I don't want to have to deal with downsizing current for my 12v appliances (will use it in a campervan). Or is there a cheap way of down regulating 24 -12v?

Thank you for the help, I'll probably go with 2 40a Renogy Mppts instead and connect 2 panels to each. This PowMr MPPT seems way to shady for my liking. This would keep me way under the 520w limit per mppt (360w for 2 panels) and I'd stay under the 100vdc PV max (46.4voc for 2 panels). It'll be...

Hi, I'm looking at this 60a MPPT from PowMr https://powmr.com/solar-charge-controllers/mppt/powmr-60amps-12v-24v-36v-48v-mppt-solar-charge-controller/ and plan on using 4 of these...

Not planning on having grid connection all that much but would like to have the option if the weather is bad for an extended time. We'll be running everything in the van of electricity so we don't want to risk being without power for cooking etc. It also seems much cheaper to get it all in one...

Awesome, I've just seen that the inverter I was looking at is a hybrid inverter and not a AIO. I found this https://powmr.com/inverters/powmr-3500w-all-in-one-inverter-ac-220v-dc-24v-solar-inverter-charger-pow-hvm-3.5h-24v/ inverter but this one has 120-450Vdc as it's solar input. Would 188.8V...

I got the numbers from the data sheet on the page I linked (marked on the screenshot) I'm mostly gonna live in southern Spain during winter so I'll get a decent amount of sun but do you still think the lower voltages will be a problem? The Voc for 4 panels will equate to 188.8V will this still...

Awesome, thanks!

Vmp is 39.2 and Voc is 47.2 i should have used the Voc number right?

Thank you, I've found similar panels with 39v so 4 of them would 156v. Would this still be to low a voltage for when the sun is a bit lower? Or should I just try to find another unit with a mppt for lover voltages

Thank you, I've found similar panels with 39v so 4 of them would 156v. Would this still be to low a voltage for when the sun is a bit lower? Or should I just try to find another unit with a mppt for lover voltages?

Hi I'm looking at a PowMr AIO https://powmr.com/inverters/hybrid-inverters-on-and-off-grid/powmr-3600watt-dc-24v-ac-output-220v-hybrid-inverter-charger/ which has a PV voltage range of 90-450vdc. And I'm also planning on buying 4 of these...