FAQ
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Q:What is Hoymiles' annual manufacturing capacity?A:
Hoymiles has been on the fast track and our annual production capacity has reached 2 million units on average. From 2016 to 2021, we registered a 100% increase in sales volume every year. As of 2022, over 1 million Hoymiles microinverters have been installed across more than 100 countries and regions. Our service network now spans more than 76 countries and regions and this number is expected to grow in the years to come.
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Q:Does Hoymiles microinverter support three-phase systems?A:
Yes, you can either choose our HMT-2000-4T/MIT-5000-8T high-powered three-phase microinverter or use our single-phase products HMS series to form a three-phase system.
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Q:How does Hoymiles microinverter achieve power export management ?A:
The Hoymiles Smart Power Export Management can intelligently control the output power of the photovoltaic system, and maximize the user’s power generation profits without violating grid export regulations. At the same time, this system can also accurately display the power and production of the photovoltaic system with the measuring meter, so that users can trade check the PV production online according to data on S-Miles Cloud.
In the Hoymiles Export Management solution, Hoymiles gateway DTU-Pro (or DTU-Pro-S) and additional meter (CT optional) are necessary. In the case of export limitation, the meter can be installed at the load side or the grid side. The gateway DTU will dynamically adjust the PV power production according to the export power or load consumption as measured by the meter, so that the export power does not exceed the preset limit. To display the PV production accurately, the meter needs to be installed at the output of the PV system to enable the user to get the PV power production remotely.
You can see our installation demonstration here.
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Q:How about Hoymiles microinverters' failure rate?A:
Our failure rate is 0.18% on average.
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Q:What is the DC/AC ratio of Hoymiles microinverters?A:
We recommend that the ratio be between 0.8 and 1.35 depending on your solar project.
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Q:What's the difference between the trunk version and the daisy chain?A:
They are installed differently on the AC side, and the trunk version is known for easier installation.
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Q:Can microinverters work without a DTU?A:
DTU, short for Data Transfer Unit, is a gateway of data collection and transmission. Microinverters can certainly work without DTU, but you will not be able to get the module-level power production data of your PV system, nor can you perform diagnosis and maintenance of your system online. In other words, you will not be able to tap the full module-level capabilities for which microinverters are built in the first place.
Furthermore, buying a DTU is more than buying a small gadget. It gives you free access to our monitoring platform S-Miles Cloud for life. You will have all the operation data at your fingertips. You can check on the module-level data of your PV system in real-time, diagnose any problems remotely, and maintain your system at minimal costs.
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Q:Can Hoymiles microinverters work off-grid?A:
Currently, Hoymiles microinverters are grid-tied, but we are in the process of developing off-grid microinverters, and you can look forward to that. Our microinverters can form an AC coupling system with our hybrid inverters. If you are starting from scratch, then you can directly install our hybrid inverter which can work on- and off-grid.
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Q:How to check if the PV module is compatible with Microinverter?A:
1. Verify that the voltage and current specifications of the PV module match those of the microinverter.
The maximum open circuit voltage rating of the PV module must be within the operating voltage range of the microinverter.
We recommend that the maximum current rating at MPP should be equal to or less than the maximum input DC current.
Short circuit current of the panel should be< Maximum input short circuit current of microinverter.
2. The output DC power of PV module shall not exceed 1.35 times of the output AC power of the microinverter. Refer to “Hoymiles Warranty Terms & Conditions” for more information.
If you still need further help, please send the specification of the panel to service@hoymiles.com
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Q:Do you offer training courses?A:As a Hoymiles partner, you can access a range of training courses as well as useful resources for improving your product knowledge and technical capability. Find out more on our training page or contact us for more details.