Ari J. Lauer, the former outside counsel for mobile solar generator manufacturer DC Solar, has been sentenced to 11 years and five months in federal prison for his role in a massive fraud scheme.
The sentence was handed down by Dale A. Drozd, a U.S. District Judge, following Lauer’s guilty plea in October 2025. He admitted to conspiracy to commit wire and bank fraud, along with 12 counts of bank fraud and 10 counts of wire fraud. The sentencing marks the conclusion of legal proceedings against the scheme’s primary legal architect, which defrauded investors of approximately $1 billion.
Between 2011 and 2018, DC Solar promoted investments in mobile solar generators mounted on trailers. These units were marketed as portable power solutions for applications such as cellular towers and lighting at sporting events.
The company told investors they could benefit from federal renewable energy tax credits by purchasing the generators and leasing them back to DC Solar, which would then sublease them to end users. However, investigations later revealed that roughly 95% of the reported lease revenue was derived from funds contributed by new investors, rather than actual operating income.
Prosecutors stated that real market demand for the generators was minimal, and that Lauer played a central role in giving the business model an appearance of legitimacy. Serving as the company’s lead attorney for nearly a decade, he drafted contracts that helped secure hundreds of millions of dollars in tax equity investments.
Court evidence showed that Lauer assisted in creating fraudulent re-rent agreements and backdated documents to justify large transfers of cash between accounts. He also prepared sublease agreements containing undisclosed addendums that altered financial terms without investors’ knowledge.
At its peak, DC Solar claimed to operate a fleet of 17,000 generators. Federal investigators later determined that approximately 9,000 of those units did not exist. The remaining units were used to create the illusion of a large-scale operation for investors and auditors.
Lauer remained involved with the company until its collapse in 2019, which followed an FBI raid on corporate headquarters and the homes of company owners Jeff Carpoff and Paulette Carpoff.
