The advantages of micro solar pv inverter

I think, in the use of micro-inverters will be a huge advantage, using a centralized DC inverter, especially for residential installation. When and if they come up with a suitable DC arc fault protection, it will most likely be complicated and expensive and thus negate any cost advantages central inverter may have?

I have installed both traditional and micro-inverter and residential installations it is a "no-brainer", micro-inverter to win. Another advantage not mentioned: ground-mounted system, say a single-axis trackers or can be easily accessed from the ground a fixed shelf, we need completely surrounded by fencing array, if you use a DC inverter, is not the case an AC micro-inverter.

String inverter manufacturers are working hard to meet the new standards - Gozuk included. In fact, we have several tests throughout the United States. Although the price of PV systems is always concerned with the problem, which is too early to tell what the impact will be significant ROI, the string inverters are usually cheaper than the millionth lot of it, so I do not want to make any speculate on the increased costs.

Of course, if we are to pick up to the PV array and inverter transformer, then it would significantly reduce the chance of arcing in PV systems with built Riise detection circuit. I believe, will be addressed in future versions of the code.

Reliability of the inverter is a problem though. The string inverters, we are using a well-established and has many years of performance verification, micro-inverter is still doubtful, since the reliability and assurance are two different things, although they are a leader, a lot of people buy them I want to look at risk assessment.

In general the wiring can be more easily understood by the basic homeowner must be based on the size of the string inverter output board, it is not necessary to micro-inverter, there is the size and layout is not necessarily with the micro-inverter the associated costs.

Cost analysis is still important. Our engineering analysis does not charge our system, because we do not do the roof-mounted systems. All of our systems are basically the same, the only change the inverter size.

For example, 3.5 kilowatt solar homeowners, it is exactly the same wiring and the inverter is set for all the owners to install. Wiring, string size, the DC circuit breaker, AC switch box are the same. In this particular case, from the DC breaker box wiring is normal ROMEX underground pipeline to the inverter, a combo box should be micro inverters, really I do not understand why there is a price advantage wiring micro-inverter device.