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What are the experiences of some installation companies with microinverters and power optimizers?

asked 2015-01-08 17:40:26 -0500

Frank gravatar image

I've been doing some of my own research into microinverters and power optimizer technologies like Enphase, Tigo and SolarEdge, but it's hard to come to any solid conclusions about which one is better (if any), or whether I should just stick with a regular inverter.

I'm wondering if some installers can chime in and give some insight into how these various systems perform based on their experience to date. Do you they work well? Does one work better than another? Are there many advantages over central inverters?

Please give some background into your experience in the industry as well as how many of each type of system you've actually installed.


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answered 2015-01-11 21:07:50 -0500

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updated 2015-01-11 21:07:50 -0500

Our company feels that micro-inverters are better. In order of preference 1. EnPhase 2. Micro-inverters 3. Optimizers 4. String inverters. We have limited experience with string inverters – we just don’t see them as a viable option. They are DC which have added danger, susceptible to shade and variances in the solar modules, are a single point of failure, and have ½ the warranty. You will be responsible for replacement when it fails after year 10. We have micro-inverters on our own homes. We regularly compete with other installation companies pushing cheaper solutions but we feel strongly that micro-inverters are the best choice even though they cost more. Even when there is no apparent shade. We call bird droppings, clouds, dust, pollen, and leaves all shade and every system has it.

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Asked: 2015-01-08 17:40:26 -0500

Seen: 501 times

Last updated: Jan 11 '15