
Greg Smith
Community Moderator
I have been in the industry since 2008 when I started as SMA America's technical trainer. I bid SMA farewell in 2015 and hopped over to sonnen, Inc. to help them launch their energy storage system in the U.S. In May of 2021, I transitioned to Tigo as the Technical Training Director. I am a huge fan of renewable energy, BBQ, and gaming. I am a published author and wrote an Amazon best seller about grid-tied lithium-ion storage.
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Articles
Recent activity by Greg Smith-
EI Inverter Error Code 201 - Residual Current High
Contents: Issue Possible Causes Troubleshooting Step 1. Completely de-energize system Step 2. Check inverter grounding conductor screw tightness Step 3. Check PV grounding conductor integrity. ...
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Using Tigo’s Rapid Shutdown Solutions with the Sol-Ark Hybrid Inverters
The Tigo TS4 product line is compatible with nearly every inverter manufacturer in the industry (comprehensive list, found here). However, there are some technologies that pose unique product integ...
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Help! I forgot to scan the optimizer serial numbers, before installing them on the roof.
Contents: Overview Single Unit Discovery Method Future Site Visits Overview The assembly of a Tigo System requires the scan or input of each MLPE serial number into the system's build (online)....
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PV Module Overview
What is a PV Module? The most common device in a system is the PV Module. PV modules are sometimes referred to as solar panels. However, the term only refers to the panel portion of the module (ex...
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What is the furthest distance I can install the EI BMS/Battery from the EI Inverter/Link (EU)?
The Tigo EI Residential Solution (EU) can be installed in various configurations to meet your project needs. The system's components can be stacked on top of each other, or the BMS/Batteries can be...
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TS4 Design and Installation Certification Course - Online Training
The TS4 Design and Installation Certification Course helps you design, install, and commission a PV system using the TS4 Flex MLPE platform. This online self-paced course will take approximately...
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Tigo EI Inverter - PV Array Ground Fault Troubleshooting
This article contains background information to supplement these articles: EI Inverter Error Code 200 - AFCI Fault EI Inverter Error Code 201 - Residual Current High EI Inverter Error Code 203 - PV...
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EI Inverter Error Code 203 - PV Isolation Low
Symptoms: The following error message is reported: Error Code 203 - PV Isolation Low. Cause: The inverter has detected a low resistance reading to ground. There is an issue with DC wiring or mo...
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EI Inverter Error Code 200 - AFCI Fault
Symptoms: The EI Inverter reports the following message: Error Code 200 - AFCI Fault. The EI Inverter LED Indicator shows a continuous red fault light accompanied by a loud buzzer. Cause: Th...
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Lithium-ion Battery Overview
As solar and storage gain more momentum in the public eye, more questions about the current and future battery technologies are inevitable. Although there are many promising battery chemistries and...