28 Dec '11, 4pm

Can Microinverters and Optimizers Work in Large Solar PV Installations?: A few months ago, Jurgen Krehnke, Pre...

Can Microinverters and Optimizers Work in Large Solar PV Installations?: A few months ago, Jurgen Krehnke, Pre...

He told us more recently, “It’s commonly known that the cost per watt of solar inverters decreases as you increase in size. This is the basic logic behind SMA’s assumptions about where a microinverter is best utilized. Customers typically will find the lowest acquisition costs utilizing the largest inverters, which is why the cost per watt of a microinverter is higher than an 800-kilowatt central inverter. A decentralized approach for commercial applications makes sense when the maintenance and long-term operation costs begin to outweigh the acquisition cost. In these cases, string inverters can be an attractive solution. Without any appreciable performance gains and a much higher initial cost, however, a microinverter is still not a cost-effective option for most commercial applications." Krehnke added, "There are instances where a business model dictates use of a particu...

Full article: http://www.greentechmedia.com/articles/read/Can-Microinve...

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