Terrible service. Avoid if possible. I had a 20 kW system installed through a local installer, and now, four years later, eight of the optimizers have been out of service for three months, leaving the entire system idle. I've had numerous emails with the support team, but received no help. In contrast, my 8 kW home system, installed a year later, is much more reliable with great performance and service. I regret not spending a bit more on a different option for my 20 kW system.
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Manufacture solar inverters, power optimizers & Pw monitoring for maximum energy production and faster return on investment