What is a solar panel system?
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Modern solar panel systems consist of four main components:
Solar panels, which convert sunlight into direct current (DC) electricity
A grid-tie inverter, which converts DC into AC (alternating current) usable energy for your home
Mounting hardware for the roof or ground
A monitoring system that offers real-time insights into your solar power system's performance
Inverter choice should be one of the most significant factors weighing your decision. Inverter efficiency is more important than solar panel efficiency.
What types of grid-tie inverters are available?
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There are three types of inverters for grid-tie solar power systems: string inverters and micro inverters. As you search for the right solar system for your home, its essential to choose an inverter suitable for your needs and electricity usage.
String inverters have the lowest price point but the most limitations when it comes to their traditional, dated technology and factors like shading, expansion and system monitoring. String inverters can only be used for ground mounted solar panel systems and are not allowed on roof mounted systems. Additionally, string inverters have a single point of failure. If the string inverter goes out, your entire solar system also goes down.
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Micro inverter solar panel systems are the number one choice among residential solar installations. Micro inverters are efficient, reasonably priced and easy to install, and provide a smooth, hassle-free experience even for novice solar installers. As opposed to the string inverter options, micro inverter systems have no single point of failure. If one micro inverter goes down, the rest of the system operates at full capacity. If youre looking for the best solar power for your home, micro inverter systems are the way to go.
Yurtdweller said: Also, I don't have walls to hang it on, so I've built a cabinet for my cc and inverter, and a roadie crate for my battery. It has to be portable. I know the AIO have replaceable components, but my system cannot be deprecated. If a company stops building a component, I can buy it from a different company. If I don't like the functionality of a component, I can get a different one. If a company goes out of business, no problem. If I need to upgrade, I can sell off the old components, and have done so several times. I'm fortunate that I live in a large community of solar users, and can turn my components around very quickly.To each his own. Im just saying in my opinion the ultimate solar install professional or DIY is the one that you dont even know its there. That goes double for resale. I can explain my system operation in 15 min or less and a rookie can be happy with it.
Also, for some reason, one of my smaller tools, with a variable speed motor, frequently trips my inverter. I don't know why. I can't replicate it. So, I installed a second inverter just for that tool. Now, if it trips, it doesn't take down my whole system. It's a carving tool with a foot pedal rheostat, and it randomly trips every inverter that I've ever connected it to. I'd hate to do that to an AIO.
My system does not 'require frequent changes'. It just works. And I like knowing how everything works. I only have 2 types of components to program. My BMSs(4x) and my Victon CC.
I built my own battery bank from cells, so I saved a bunch there. I have a 14kWh LiFePo4 bank that cost about three grand, total. Right now it is 12v, but if I chose, I could easily convert it to 24 or 48 volt, and probably will, if my inverter ever burns up.
Off-grid, Isolated.My system has been 'scaling' for years. Each time I think it's big enough, I find new demands:/ I started with just a 100 watt 'kit' with a simple pwm. Now I'm watts with a 14kWh battery. Individual modules allows more flexibility. And it's more fun to buildAlso, I don't have walls to hang it on, so I've built a cabinet for my cc and inverter, and a roadie crate for my battery. It has to be portable. I know the AIO have replaceable components, but my system cannot be deprecated. If a company stops building a component, I can buy it from a different company. If I don't like the functionality of a component, I can get a different one. If a company goes out of business, no problem. If I need to upgrade, I can sell off the old components, and have done so several times. I'm fortunate that I live in a large community of solar users, and can turn my components around very quickly.Also, for some reason, one of my smaller tools, with a variable speed motor, frequently trips my inverter. I don't know why. I can't replicate it. So, I installed a second inverter just for that tool. Now, if it trips, it doesn't take down my whole system. It's a carving tool with a foot pedal rheostat, and it randomly trips every inverter that I've ever connected it to. I'd hate to do that to an AIO.My system does not 'require frequent changes'. It just works. And I like knowing how everything works. I only have 2 types of components to program. My BMSs(4x) and my Victon CC.I built my own battery bank from cells, so I saved a bunch there. I have a 14kWh LiFePo4 bank that cost about three grand, total. Right now it is 12v, but if I chose, I could easily convert it to 24 or 48 volt, and probably will, if my inverter ever burns up.Off-grid, Isolated.
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To each his own. Im just saying in my opinion the ultimate solar install professional or DIY is the one that you dont even know its there. That goes double for resale. I can explain my system operation in 15 min or less and a rookie can be happy with it.Im a tinkering guy myself and have done a hundred projects on my own and cheap. After several years I no longer get honey the (insert device) isnt working when I get home. If Im away I dont worry that something went wrong. I know my stuff is up to code and Im not going to burn the place down. I dont have to spend hours diagnosing which component is causing an issue. Its just the lifestyle and choice of equipment to achieve that lifestyle. Works for me. Maybe not your cup of tea. Im getting too old and out of the mood to come home and have daily problems. I think building your own batteries would be fun but absolutely no way Id bring them in this house. And if I ever sell the place I dont want the responsibility or liability that goes along with home built stuff. Its fine in my shop but not in my home. I built my system in such a manner youd be hard pressed to tell it wasnt a professional install. Safety first. This stuff can be dangerous. We are dealing with an incredible amount of energy that works to our advantage if harnessed and controlled. One mistake and that energy gets unleashed and uncontrolled it would be devastating. So for me no corners cut. Everything to code and UL listed except my batteries. Even my bus and lugs are UL. Bought the best built batteries for the money I could find. At the time no UL batteries available. May change that at some point but no issues now 9 months later. Just my style. BTW my system is very scalable with the equipment I installed. I built in expansion when I designed it. More panels or batteries no problem.
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