I'm running 24v system...16x 24v 250watt pannels and 3x 24v 150watt and 3x 24v 190 watt pannels with a 600watt 24v wind turbine . Battery bank 30kw. Im putting in 85amp per hr. I run a 1800watt inverter. I use 3 charge controller at 40amp each. My batteries are rated at 100amp per hr input. Am now looking at heater glow plugs for heating up solar hot water system linked to 12v ..240watt solar panel. Sofar so good.
New to solar, just bought an EcoFlow Delta Max and 1,360 watts of solar panels to over panel. May sound like a waste, but if I plan a larger DIY solar setup in the future, I am already on my way. Many people buy those gadgets that move the panels throughout the day, but they are expensive. The one for the Delta is 1,600CAD for their 400 watt portable panels. My thinking is no matter whether my panels a positioned properly vertically, moved throughout the day or I have an overcast day, I will still receive as close to the max 800 watts/hr the Delta can accept for longer.
The inverter size doesn't matter at all the battery bank size determines how much solar power you can supply to your battery and your charge controller rating you can have a 1000 watt inverter and have 10,000 watt's of solar panels as long as your charge controller and battery bank can handle it the inverter draws power from the battery there is no power getting pushed into it
I have 38 400 watt panels hooked to enphase iq7+ (295W) and iq7A (349W). Over the last 6 months, the A's have produced about 2% over the +. Save your money and buy a cheaper inverter and add an extra panel. FYI. I live in west Texas. A desert region. Actually, many square miles of commercial solar farms here.
Hi so you recommend to go with cheaper inverters (295w) hooked on more powerful panels (400w) or you would decrease panel watts too (lets say 330w)? also do you recommend your micro inverters over one string inverter? I would like to have only up to 10 panels as my consumption is not that big and I dont plan to become independent. My aim is to reduce bills by a half (more or less).
@@viliamgajdos5917 well you get the perfect 400 watts about never. Lol. Think morning, evening, cloudy days, dirty panels, etc. I'm my opinion, the 400/295 is great.
@@viliamgajdos5917 a string inverter is great! It really depends on pricing and what's local codes you have. Maybe you should have a professional give you a estimate.
My dad's system in Perth has a 2 kW inverter and what seems to be about 3.8 kW of panels (10 panels). It disconnects frequently, apparently because it can't keep the voltage under 260 V.
@@iqsolar9633 yeah it makes sense that the network demand controls the voltage. I think our supply is quite weak (lots of dips and brown outs and two or three scheduled outages in the last year), and lots of neighbours are producing when the sun shines. I checked one of the 10 identical panels and it is rated at 190 W, for a total of 1.9 kW panels and a 2 kW inverter, so I don't understand why the inverter is showing the numbers is does (current power output of 2,673.7 W at 10:45 am).
Is 17.16kw panels too oversized for 10kw Sungrow Inverter with 16kw Sungrow battery. 13 panels on each East, north, west roofs which are steep. Salesman thinks its ok and even tried to convince me that the excess clipping will feed back into the grid. I think the clipped is not converted to AC?
I am planning to get a REC 400 panels x 37 using IQ8 micro inverters. Which one shall I use? I got some sales rep recommend IQ8+, IQ8M or even IQ8A? What is a good combination for location in Kansas, USA no shades and mostly facing south panels. Great video by the way so sales rep do not even understand this or do not care.
We use Enphase, and they are a great product… can’t comment on the model choice as here in australia some the sizing is dictated by local regulations on oversizing. We usually choose enphase when there’s some shading, but you get some possibilities to upgrade and integrate with batteries which is good.
Do u think on a deye 8kw can i go up to 9.8kw system? Sure we should stay under the voc voltage can not pass but what would happen if i had max power for few days like over 8kw for 2-3 days?
@@iqsolar9633 my inverter already says 1850watt max input and 1550watt output.with 1750watt panels it rarely exceeds 1250w.should I add one more panel?
Yes, in Australia we are allowed to oversize by 33% so we can fit 6.6kW of panels on a 5kW inverter (or others proportionally), so that is what typically happens.
Sorry, but this explanation is horrible. What about oversizing panels and increasing the inverter's ability to deal with excess voltage (when panels are connected in series) This shows just one half of the issue and it does it badly.
I’m not trying to get into an electrical explanation… I’m simply explaining that we can have more panel capacity than the nameplate capacity of the inverter, and it doesn’t really impact performance. If you want to get into volts and amps, that’s awesome. Drop me an email. It’s irrelevant to almost everyone, however people often wonder why they have more panel capacity than their inverter size. I’m also not sure where you’re located, but as well as electrical considerations, in Australia our rebate scheme allows for up to a 33% oversizing to be eligible for the rebate. More of batteries are connected. I’m sure you know this.
And, just for clarity, the voltage window for the inverter per mppt is of interest to no customer, ever. They also don’t care if we parrallel a string for a third position. I care because i need to know how to put together a system… our installers are all licences of course and eat this stuff for breakfast. Customers don’t care.
@@iqsolar9633 That is fair enough and perfectly in order with what you do, for sure. Thing is... this is TH-cam and all manner of people will be taking your advice (which is in essence, good) but just chucking on extra panels with the idea that inverters can just take them is perhaps.... unwise?
@@mrpad0 I am not sure where you are... in Australia ONLY licenced electricians install solar. It's not a home DIY project. This is not 'installation advice', it's an explanation for people buying solar / looking at solar for some basics. This is not installation advice, medical advice, relationship advice, or financial advise. It's an explanation. Do not install solar yourself. Ask an adult.
@@iqsolar9633 Oh, I live in the USA. One can instal solar oneself, but such work needs to be signed off by certified electricians of course. On the other hand, if one lives off-Grid in the boonies.. people will set up their own systems. People also set up their own RV systems, of course. Everything you said about upping the wattage intake is good advice. The one-third thing too. I was just surprised that no mention was made of the voltage increase that could happen (with in series panels, particularly) and it alarmed me. I read what you had written underneath this presentation about 'How do you calculate how many panels you need' and failed to mention what others mention as a caveat. It's solar panel installation basics. Sorry.
we can see how often a system clips, and in summer it's quite often. But overall the impact on a system is a percent or two... there's much bigger factors than the clipping.
![CAMPปลิ้น | EP.83[2/2] ประสบการณ์ขนหัวลุกจากตำนานวงการผี!](http://i.ytimg.com/vi/T_kFecQw7Ds/mqdefault.jpg)
I'm running 24v system...16x 24v 250watt pannels and 3x 24v 150watt and 3x 24v 190 watt pannels with a 600watt 24v wind turbine . Battery bank 30kw. Im putting in 85amp per hr. I run a 1800watt inverter. I use 3 charge controller at 40amp each. My batteries are rated at 100amp per hr input. Am now looking at heater glow plugs for heating up solar hot water system linked to 12v ..240watt solar panel. Sofar so good.
New to solar, just bought an EcoFlow Delta Max and 1,360 watts of solar panels to over panel. May sound like a waste, but if I plan a larger DIY solar setup in the future, I am already on my way. Many people buy those gadgets that move the panels throughout the day, but they are expensive. The one for the Delta is 1,600CAD for their 400 watt portable panels. My thinking is no matter whether my panels a positioned properly vertically, moved throughout the day or I have an overcast day, I will still receive as close to the max 800 watts/hr the Delta can accept for longer.
The inverter size doesn't matter at all the battery bank size determines how much solar power you can supply to your battery and your charge controller rating you can have a 1000 watt inverter and have 10,000 watt's of solar panels as long as your charge controller and battery bank can handle it the inverter draws power from the battery there is no power getting pushed into it
I have 38 400 watt panels hooked to enphase iq7+ (295W) and iq7A (349W). Over the last 6 months, the A's have produced about 2% over the +.
Save your money and buy a cheaper inverter and add an extra panel.
FYI. I live in west Texas. A desert region. Actually, many square miles of commercial solar farms here.
Hi so you recommend to go with cheaper inverters (295w) hooked on more powerful panels (400w) or you would decrease panel watts too (lets say 330w)? also do you recommend your micro inverters over one string inverter? I would like to have only up to 10 panels as my consumption is not that big and I dont plan to become independent. My aim is to reduce bills by a half (more or less).
@@viliamgajdos5917 well you get the perfect 400 watts about never. Lol. Think morning, evening, cloudy days, dirty panels, etc. I'm my opinion, the 400/295 is great.
@@viliamgajdos5917 a string inverter is great! It really depends on pricing and what's local codes you have. Maybe you should have a professional give you a estimate.
How do you know 2% over energy production. Do you have actual 2 version of inverter to test it out? How many times it clipped for the IQ8A?
My dad's system in Perth has a 2 kW inverter and what seems to be about 3.8 kW of panels (10 panels). It disconnects frequently, apparently because it can't keep the voltage under 260 V.
sometimes they disconnect because the grid is higher than it's meant to be
@@iqsolar9633 yeah it makes sense that the network demand controls the voltage. I think our supply is quite weak (lots of dips and brown outs and two or three scheduled outages in the last year), and lots of neighbours are producing when the sun shines. I checked one of the 10 identical panels and it is rated at 190 W, for a total of 1.9 kW panels and a 2 kW inverter, so I don't understand why the inverter is showing the numbers is does (current power output of 2,673.7 W at 10:45 am).
Is 17.16kw panels too oversized for 10kw Sungrow Inverter with 16kw Sungrow battery. 13 panels on each East, north, west roofs which are steep. Salesman thinks its ok and even tried to convince me that the excess clipping will feed back into the grid. I think the clipped is not converted to AC?
I am planning to get a REC 400 panels x 37 using IQ8 micro inverters. Which one shall I use? I got some sales rep recommend IQ8+, IQ8M or even IQ8A? What is a good combination for location in Kansas, USA no shades and mostly facing south panels. Great video by the way so sales rep do not even understand this or do not care.
We use Enphase, and they are a great product… can’t comment on the model choice as here in australia some the sizing is dictated by local regulations on oversizing. We usually choose enphase when there’s some shading, but you get some possibilities to upgrade and integrate with batteries which is good.
A 400 watt panel needs a 300 watt inverter.
here comes the sun
Hello if you have a 10 kw inverter can you make it by software a 8 kw inverter ????
can i have a 20kw solar 50 panel trina honey black unit with a 100w inverter plugged into my car fridge
Like that's too much clipping. Inverter would star crying with actual tears.
Thanks a lot.
Do u think on a deye 8kw can i go up to 9.8kw system? Sure we should stay under the voc voltage can not pass but what would happen if i had max power for few days like over 8kw for 2-3 days?
there is no danger to blow the inverter?
No, is is designed for a much larger additional input
@@iqsolar9633 my inverter already says 1850watt max input and 1550watt output.with 1750watt panels it rarely exceeds 1250w.should I add one more panel?
@@audiophilesland969 it depends on the amp inputs into each string if it’ll take it… find a data sheet for panels and inverters
@@iqsolar9633 yes it can it,s one string in series and have plenty of voltage left
@@audiophilesland969 every inverter has both a voltage maximum and a current maximum. we design within those guidelines.
Is there a good rule of thumb? (e.g. panel = 110% of inverter)
Yes, in Australia we are allowed to oversize by 33% so we can fit 6.6kW of panels on a 5kW inverter (or others proportionally), so that is what typically happens.
@@iqsolar9633 Great to know - thanks!
for interest th-cam.com/video/vP_y_7yVua0/w-d-xo.html
Sound Like a theory to be tested with science measurement
if you like. or… we can observe it on our monitoring … i can see what it does
th-cam.com/video/vP_y_7yVua0/w-d-xo.html for info - from monitoring
I would start off by telling people this is only relevant in OZ.
Good point...
Even more relevant in uk. We are lucky to get sun 😁
Sorry, but this explanation is horrible.
What about oversizing panels and increasing the inverter's ability to deal with excess voltage (when panels are connected in series)
This shows just one half of the issue and it does it badly.
I’m not trying to get into an electrical explanation… I’m simply explaining that we can have more panel capacity than the nameplate capacity of the inverter, and it doesn’t really impact performance. If you want to get into volts and amps, that’s awesome. Drop me an email. It’s irrelevant to almost everyone, however people often wonder why they have more panel capacity than their inverter size.
I’m also not sure where you’re located, but as well as electrical considerations, in Australia our rebate scheme allows for up to a 33% oversizing to be eligible for the rebate. More of batteries are connected. I’m sure you know this.
And, just for clarity, the voltage window for the inverter per mppt is of interest to no customer, ever. They also don’t care if we parrallel a string for a third position. I care because i need to know how to put together a system… our installers are all licences of course and eat this stuff for breakfast. Customers don’t care.
@@iqsolar9633 That is fair enough and perfectly in order with what you do, for sure.
Thing is... this is TH-cam and all manner of people will be taking your advice (which is in essence, good) but just chucking on extra panels with the idea that inverters can just take them is perhaps.... unwise?
@@mrpad0 I am not sure where you are... in Australia ONLY licenced electricians install solar. It's not a home DIY project. This is not 'installation advice', it's an explanation for people buying solar / looking at solar for some basics. This is not installation advice, medical advice, relationship advice, or financial advise. It's an explanation. Do not install solar yourself. Ask an adult.
@@iqsolar9633 Oh, I live in the USA. One can instal solar oneself, but such work needs to be signed off by certified electricians of course. On the other hand, if one lives off-Grid in the boonies.. people will set up their own systems. People also set up their own RV systems, of course.
Everything you said about upping the wattage intake is good advice. The one-third thing too. I was just surprised that no mention was made of the voltage increase that could happen (with in series panels, particularly) and it alarmed me. I read what you had written underneath this presentation about 'How do you calculate how many panels you need' and failed to mention what others mention as a caveat. It's solar panel installation basics. Sorry.
What if it clipped everyday?
we can see how often a system clips, and in summer it's quite often. But overall the impact on a system is a percent or two... there's much bigger factors than the clipping.
@@iqsolar9633 mine clips from 10am -2pm all day everyday
@@InspectorApe do you live in Darwin?
@@iqsolar9633 riverside Cali
My panels are 330 aptos with iq7
6.6kw and clipping at 4.9 from those hours everyday.
In this case should they have gone with iq7a ?