Well I have the same solar panels for 35 years that is still working just like if they're brands make a new and they charge my battery before the sun even comes out just by the daylight I also got newer back batteries as well as older batteries older than my solar panels everywhere and those batteries still work like they were good so my 45 year old batteries still work you have no idea how long solar panel can work as long as you always baby them or take really good care of them I should say make sure they're clean make sure the wire connections are always good so my 35-year-old solar panels might last another 60 years as if they were still working like brand new I also got newer solar panels but my newest solar panels I got right now are from the beginning of 2022 and they're only 100 w solar panels and 25 what panels I got solar panels that are two years old that a four and five watts solar panels and I got 150 watts solar panels that are 12 years old same with 60 watts and got two of each of both of those and they still work as if they're brand new I also got some 18 Watts solar panels 15 watts of panels and an 80 watt panel. But I did order 275 w solar panels and I ordered them recently and I asked you wonder if they're going to come in the mail or on truck because I ordered 42 of them with converters three 6,000 watt converters that does 120 240 volts but most times I order stuff over the phone tell him I live in Wisconsin Wautoma they never deliver them to my house and when they do deliver them to my house some may come within a couple months times some may come 6 months later some may come a month and a half later some may come a year and a half later and some comes 2 years and two and a half years later and sometimes they never come at all for 12 years I ordered something and it never came so I see a good mailing systems are and everybody says they get their stuff but I don't know if Wisconsin actually belongs in the United States of America or actually is in the United States of America because no one can seem to find it it seems like but I see those delivery trucks come to this town come to the state but they can never find my house they can find everybody else's at my house is not hidden I mean heck they even come across the road from my place and right beside my place they know who I am but they never seen have anything for me they say they didn't see anything like that meaning they never got it and it was probably delivered to someplace else and when I do track it it's always delivered to someplace else and I complain about it and only once I got money back on it other time they've had turned the phone off called wish and they won't give me my money back and I ordered 780 watt solar panels 16 of them with a 9,610 amp charger and they never showed up and they won't even give me my money back so I don't know if I ever order from wish ever again but I will insult wish from now on to the day I die which will probably never.

be sure and ask about the life expect. of each of the components, I noticed that he left that part out

Cool. That is a nice feature to have.

Hey, can you use this feature to run a Fridge?

Good idea. I may give that a try.

Yes, you need a net metering meter. I'm not sure on the inverter being configured that way, but I would bet yes for a good inverter.

yes the inverters can be set to NOT feed back to the grid, Just confirm the guy installing your system knows how to do it, its a program feature on nearly every model of inverters but most people don't know how to set them up.

The device is called a limiter. Some inverters had a built-in limiter if yours don't have, you can purchase an external limiter. It will prevent the inverter from sending excess power to the grid.

On page 40 of the Sunny Boy manual it even talks about a multi function relay for charging a battery bank. ressupply.com/documents/sma/SB_3.0-7.7_Installation_Manual.pdf

Found the piece I had read... You have to buy the SMA Battery Inverter. It will work with multiple battery types according to the description (in the parts list). www.freecleansolar.com/SMA-Sunny-Boy-Storage-2-5-Battery-Inverter-p/sbs2.5-1vl-10.htm?gclid=CjwKCAjw64bPBRApEiwAJhG-fhIYtiptfsvlXFsR_EpihX-szzZ5T9pwr7jUTLh-cex_XfKPzf6IQhoCoHUQAvD_BwE.

The panels are pretty tough. Just like a skylight I guess.

Yes, for most types of panels. They don't put out much current (10%?) but the voltage ramps right up at daybreak, and they will start charging the batteries right away on a limited basis. Power is limited (to 20-40%?) on totally cloudy days, but they really sing on fully sunny days.

No, I don't think so. But many people get the grid tied system to start and then want to add a battery backup, so this is a good solution. If you know you are doing a battery backup from the start, I would just build a hybrid system.

@@FarmCraft101 thank you for your reply. I was under the impression that the hybrid is more costly than the AC coupled. I may have misunderstood.

Shown briefly in the Part 1 video is a Schneider XW inverter connected to a battery bank. The XW has 3 AC connections: 1) AC1 for grid connection, 2) AC2 for an optional AC source, and 3) AC loads. So in theory, one could connect the grid to AC2 instead of to AC1. However, there could be a problems with synchronizing the Grid AC to the AC loads. The XW does not feed power back into AC2 so there should not be a problem. The XW will shut off feeding power into AC1 if AC1 voltage drops. IANAE so read the XW6848 manual.

Bah! I should have mentioned microinverters, but they are basically multiple small grid tie inverters coupled together. Same end result. Thanks for watching!

Hah! Maybe a topic for another video. Unless KZfaq decides that microinverters are of the devil and must be banned?

@tdidan With the PV Strings connected in series = High DC Voltage, there is no such thing as ... "Elimination of DC transmission loss" when using Micro-Inverters. Having many Micro-Inverters can add too much the bottom line COST. And on a roof mount system, with many tightly packed rows of PV Panels, how do you replace the failed micro-inverter in the middle panel, of the middle row, in the array?

@@mrbodo69 COST ?

@tdidan DUH !!! I was talking about your *false* statement regarding: "Elimination of DC power Losses" by using micro-inverters. Comparing High Voltage DC ( as is now ) vs AC Voltage ( your suggestion ) the losses are worse for AC, at the same voltage. You do not understand Electrical Engineering ...

It's really both at the same time. The energy is sent to the batteries, and the inverter is hooked to the batteries. The batteries are like a storage tank. If the inverter needs energy it will pull it from the batteries. If the batteries are being charged at the same time, the result will be less pulled from storage. If the batteries are being charged with more power than the inverter is requiring, then the batteries will continue to charge while the inverter is pulling power.

How to make a system that can do both grid tie and non grid tie and also always be able to charge and run off batteries &/or the grid?

Look up the definition of "Grid-Tie" Inverter. And then compare that to "Hybrid" Inverter. Also you need to compare the COSTS of each systems.

The panels have an open circuit, so no current flows. Basically, the panels are "disconnected" when the inverter shuts down, so the solar power doesn't go anywhere.

FarmCraft101 thanks! enjoy watching

On this system as designed. I'm sure he is fully accurate, however. there is not only a single way to do this. IT DEPENDS ON STATE AND LOCAL LAWS. In Arkansas, the inverter must meet a level of clean power to meet or exceed that on the grid. There must be a disconnect switch between the inverter and the grid. With that design.. if the grid is down, or just the local segment, you can disconnect (or they can disconnect you manually at the house) leaving you with power but not feeding back to them causing a safety issue. The power company MUST know of the system, mainly so that in the case of a grid down, or segment down.. they know of the possibility of back-fed power and where it is coming from, so that whether you are home or not.. they can disconnect you from them. This is for safety, and so they can make the line safe to repair (good for the neighborhood). Arkansas when last I checked, also required if all this is met (must be installed by licensed electrician etc), then they must pay you for the excess power at -retail- rate. However.. (there's always a gotcha) once a year they zero out the "credit" and it is timed in such a way, that you always, even under perfect conditions, loose some "credit". It is credit only, no check. take time, learn the laws and such applicable for -your- local. If there is a reputable installer that does any work in your state or local.. it would really behoove you to contact them. You're paying for expertise.. not just products. Mistakes.. are more expensive than their expertise. I am in no way connected to the power or any renewable energy company in any way.

kzfaq.info/get/bejne/nbapltymu7DDc5s.html This explains much more about this topic

Not overheat. The voltage would get too high and cause problems in the electrical system. Of course, that's why grid-tie inverters are equipped to automatically shut down when the grid goes down, which prevents this from happening.

It is: kzfaq.info/get/bejne/fJehaNh639DOj4E.html

This video was entertaining and informational.

All right thanks.

Do you have high blood pressure? Chill out... No, I don't work for the electric company. The point of a grid tie solar system is to generate clean power and to make a good financial investment. Installing a hybrid or off grid system is more expensive and requires a lot more work. I don't sell electricity at all, because I use all that I generate. Because I would have had to buy that electricity at retail rates, I am earning retail price for all the electricity I generate. I have a net meter, which keeps track of the electricity going in and out of my system. Are you implying that net metering is a hoax? Or were you not aware that I have that type of meter. Based on your comments, I suspect you've never heard of net metering.

No I don't have high blood pressure.... but it is a very nice solar energy system you have and like a lottery winner you have beggars trying to get some free. The electricity company is one of those beggars. They know how popular solar energy is getting and while they can they will try and boost their profits on you and others backs. Most of the regulations that govern the energy sector are put in place by the big bosses of the energy company's. Most are directly or indirectly linked in the political big wheel. So when you have the opportunity to break free do so, you will not regret it.

@@malcolmdastur4411 When you "break free" from the Grid, you will pay even more per kWhr consumed. Why do you want to pay more? The goal is to pay less ...

Hi. I have a hybrid system. It no work like you say. The inverter synchronize whit the grid. If the solar production exceed the demand of the house it start to charge the battery’s. Wen the battery are full and if I don’t configure the export limit to 0 the excess of production goes to the company grid.wen the demand of the house exceeds the solar production it try’s to fulfill whit the battery and even if that are not enough whit the grid. I don’t use the EPS output at all. I thinking to use it only for my servers and computers at home. Sorry for my poor English but I am Portuguese

Appreciate the feedback, but you are mistaken. Without a charge controller in the system to stop the flow of power from the panels, the inverter continues to function, and if there is nowhere for the power to go the voltage will climb. To use your analogy, the pressure builds in the hose to unsafe levels. This is for a grid tie system. Hybrid and off grid systems have charge controllers that handle this problem.

Ok, I didn't realize america was so different to the rest of the world. We here in Australia follow the European systems. I agree, the inverter does continue to function, but it's output current drops to zero, while the voltage stays at what it is set too. Our inverters down here don't make more and more volts, they stop at whatever number we set them too, 236volt grid here mostly, so we set them to 243volts. Higher then the grid so it will feed into the grid, but within the 3% tolerance that is required by law. Modern electrical gear cant handle too much voltage. So if the voltage does continue to rise, when does it stop rising?? at the 360Vdc level from the panels feeding the inverter? what if my panel strings are big enough to feed 600Vdc (max household string voltage)or 1000Vdc (as used here in commercial jobs, and i believe America is making a new rule to increase that to 1500Vdc for commercial string voltage). So when do your inverters stop increasing voltage?? And how would the charge controller handle it? Does it stop making 48Vdc when the batteries are full and the house is not drawing power? How does it do that when the panels are still in the sun? (I presume the same way my inverters down here do it) Back to my analogy, the pressure in the hose will increase back upto the system pressure, but not higher then the system pressure. As pressure is ONLY a restriction to flow. My hose doesn't built up to unsafe levels, it builds up to the system pressure, which is safe for my hose not the blow apart or the pipe in the street not to leak or the valves controlling everything from my washing machine or my dishwasher from being forced open by the pressure and flooding my house. We dont use a charge controller like you do either for our hybrids. Why take 360Vdc down to 48Vdc to feed batteries and then make the inverter boost that 48Vdc up to grid voltage again. Here is a link for how fronius hybrid inverters work. kzfaq.info/get/bejne/qMiXrJSq08eZqIE.html So lets say i have 10kw of panels, so in your system i need a 10kw charge controller, as well as a 10kw inverter. It doesnt matter how many KwH the batteries are for this purpose, but lets say 10KwHours (as this seems to becoming the standard for houses). So the fronius above have a 5Kw battery charger which is wired within the 10kw inverter. so if batteries are dead =5kw to batteries (360Vdc from panels down to 48Vdc to batteries) and 5kw to house (360Vdc from panels down to 243Vdc to house or grid), batteries full then 10kw to house until sun goes down (360Vdc panels to 243Vdc to house or grid). after sunset then it can draw 5kw from the batteries at full current for 2 hours or longer at less current (48Vdc batteries upto 243Vdc to house). You lose alot of efficiency whenever you change voltage, either up or down. Interesting how other countries do things a different way. I wonder what other ways some other countries are doing things. I've noticed alot of industry talking about Flow batteries lately, seems like a better choice then lithium. Once again thanks for the information, I'm always happiest when i learn something new.