Greg Smith
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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Recent activity by Greg Smith-
TS4 Systems - Partial Deployment
This article expands upon the definition of Partial Deployment with TS4 systems. For a definition of other deployment options, see TS4 Systems - Methods of Deployment.Important Safety Notice:Before...
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TAP Basics - What is a TAP?
This article covers the basics of a TAP (Tigo Access Point): Content: TAP Description TAP Wiring TAP Communications Mesh Requirements TAP Description The TAP is a wireless radio transceiver (...
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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...
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Communication Equipment Power Supply Overview
This article provides the basic requirements and links to the instructions for replacing a power supply.Note: If sourcing your own power supply, you must verify that the electrical specifications a...
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EI Inverter Warning Code 210 - PV Polarity Reversed
Symptoms: The EI Inverter log reports the following message: Warning Code 210 - PV Polarity Reversed. Cause: PV source circuits have been reversed, i.e. the positive homerun was landed in the...
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EI Inverter Error Code 203 - PV Isolation Low Troubleshooting Guide
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 module...
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EI Inverter Error Code 201 - Residual Current High Troubleshooting Guide
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. St...
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Tigo EI Inverter - Understanding PV Array Ground Faults
Purpose This article explains how EI inverters detect PV array ground faults, what insulation resistance means, and why the recommended troubleshooting procedures are effective. It is intended as ...
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EI Inverter (US) - Error Code 200 AFCI Fault Troubleshooting Guide
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: The inv...
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EI Residential Solution (US) - Technical Resources
The Tigo EI (Energy Intelligence) Residential Solar Solution includes an Inverter, Battery, and ATS (Automatic Transfer Switch) to enable fast, flexible, and dependable installations (available in ...