According to Reuters, the probe raises regulatory pressure on the world's most valuable automaker, which already faces a federal safety probe into accidents involving its driver assistant systems.
Concerns about fires from Tesla solar systems have been published previously, but this is the first report of investigation by the securities regulator.
The U.S. Securities and Exchange Commission disclosed the Tesla probe in response to a Freedom of Information Act request by Steven Henkes, a former Tesla field quality manager, who filed a whistleblower complaint on the solar systems in 2019 and asked the agency for information about the report.
