A solar powered inverter "converts direct current (DC) electricity from a single solar panel to alternating current (AC)." Inverters can be string inverters or a micro inverter. There is a difference and you must educate yourself of the advantages and disadvantages of both types.
Micro-inverters
A micro inverter is included or connected to each module or panel. Even if there is shading on a module, it will not disproportionately reduce the amount of an entire array. But because there is an inverter on each module, you need to consider the costs which may run a little higher than modules without inverters. The latest that I've heard is that micro inverters accept DC from two solar panels. That may reduce equipment costs and must be considered when choosing what type of modules you use on your home or business. The electric power from several micro-inverters is combined and fed into an existing electrical grid. If one module or inverter fails, it will not take the entire string offline.
Keep in mind the temperature where you live. In Louisiana, the temperatures get up into the high 90's. Just think how hot it gets on your roof. It could well get over 150 degrees. Some modules are black in color and absorb more heat. I don't trust having individual units that have electronics on your roof with high temperatures. Heat is a big problem with electronics. That's why they designed heat-sinks on inverters to help air itself and cool it off. It has a blower come on when it gets too hot.
Heat is a big factor for electronics on a roof. Another installer that installed a unit similar to this with the software told me that if the Edge had a problem it would not affect the whole string. But with one module, it would abandon that module and go to the other modules. That's OK but you are losing that module anyway. You'll know which one it is by the computer software. The warranty is good on the Enphase but when you have a problem, the installer needs to get back up on that hot roof to replace one of the inverters.
I like Enphase. These units have good warranty but I don't particularly like them for roof installations because of the heat. Some installers are placing the modules close to the roof. They position the L-bracket and place the module directly on top of that and that's it. The L-bracket is about an inch from the roof and then the module is another 1 ½ inches or so. That means that there is not air space underneath the modules to cool the heat that is penetrating the modules, especially when homeowners want black modules.
The biggest advantage is that there is a racking system build for Enphase. They position and place the racking with the module on top in a very short amount of time. They can go down the line, connect it to the disconnect and it's in.
Micro-inverters
A micro inverter is included or connected to each module or panel. Even if there is shading on a module, it will not disproportionately reduce the amount of an entire array. But because there is an inverter on each module, you need to consider the costs which may run a little higher than modules without inverters. The latest that I've heard is that micro inverters accept DC from two solar panels. That may reduce equipment costs and must be considered when choosing what type of modules you use on your home or business. The electric power from several micro-inverters is combined and fed into an existing electrical grid. If one module or inverter fails, it will not take the entire string offline.
Keep in mind the temperature where you live. In Louisiana, the temperatures get up into the high 90's. Just think how hot it gets on your roof. It could well get over 150 degrees. Some modules are black in color and absorb more heat. I don't trust having individual units that have electronics on your roof with high temperatures. Heat is a big problem with electronics. That's why they designed heat-sinks on inverters to help air itself and cool it off. It has a blower come on when it gets too hot.
Heat is a big factor for electronics on a roof. Another installer that installed a unit similar to this with the software told me that if the Edge had a problem it would not affect the whole string. But with one module, it would abandon that module and go to the other modules. That's OK but you are losing that module anyway. You'll know which one it is by the computer software. The warranty is good on the Enphase but when you have a problem, the installer needs to get back up on that hot roof to replace one of the inverters.
I like Enphase. These units have good warranty but I don't particularly like them for roof installations because of the heat. Some installers are placing the modules close to the roof. They position the L-bracket and place the module directly on top of that and that's it. The L-bracket is about an inch from the roof and then the module is another 1 ½ inches or so. That means that there is not air space underneath the modules to cool the heat that is penetrating the modules, especially when homeowners want black modules.
The biggest advantage is that there is a racking system build for Enphase. They position and place the racking with the module on top in a very short amount of time. They can go down the line, connect it to the disconnect and it's in.
I would like to invite you to visit my site at http://www.energyconsultantblog.com where I teach helpful hints to you as a homeowner on how you can save money while saving energy to help the environment.
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