http://www.russellpacific.com/2009/10/do-micro-inverters-give-a-better-roi-than-central-inverters/ Keeping you at the leading edge of cost management and solar technology Sat, 06 Feb 2010 08:05:59 -0600 http://wordpress.org/?v=2.8.5 hourly 1 http://www.russellpacific.com/2009/10/do-micro-inverters-give-a-better-roi-than-central-inverters/comment-page-1/#comment-7 alex Sat, 06 Feb 2010 08:05:59 +0000 http://www.russellpacific.com/new/?p=129#comment-7 Thank you for your comment Eben, However you don't talk about the ROI of Central Inverters Vs Micro Inverters in your post. I believe that both will remain in the market; however for large power plants, central inverters presents the advantage of a 20y lifetime (with a preventive maintenance package). Micro-inverter's lifetime is between 5-7years, and in case of operation interruption, it would therefore need to be replaced. So on one hand, for PV power plants, Central Inverters will require probably a slightly higher CAPEX, with a low OPEX, and on the other hand, micro-inverters will require a slightly smaller CAPEX, with a much higher OPEX (Since it will have to be replaced 2-3 times in 20years). Thank you for your comment Eben,
However you don’t talk about the ROI of Central Inverters Vs Micro Inverters in your post.
I believe that both will remain in the market; however for large power plants, central inverters presents the advantage of a 20y lifetime (with a preventive maintenance package). Micro-inverter’s lifetime is between 5-7years, and in case of operation interruption, it would therefore need to be replaced.
So on one hand, for PV power plants, Central Inverters will require probably a slightly higher CAPEX, with a low OPEX, and on the other hand, micro-inverters will require a slightly smaller CAPEX, with a much higher OPEX (Since it will have to be replaced 2-3 times in 20years).

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