Thramann's LT350 plans data centers above parking lots

Jeff Thramann's data center company LT350 plans to mount GPU cartridges, batteries and inverters on solar canopies above open-air parking lots at malls, hospitals and schools, without taking away parking spaces.

Thramann, a neurosurgeon with at least 130 patents, formed LT350 last year with former U.S. Secretary of Defense Mark Esper, according to an Oct. 23 Commercial Observer profile. The canopies are meant for low-latency inference.

For allocators sizing data center exposure, the binding constraint becomes the parking lot's existing electrical capacity, and the open diligence question is who owns each piece of the canopy build. The site remains a working parking lot, with a canopy, batteries and GPU cartridges as the added improvements. LT350's first step is to measure that capacity, making power availability, not land basis, the initial constraint. The cartridge, battery and canopy are separate pieces of one build, so the diligence question is which entity holds each piece and which revenue line carries the offtake.

Thramann arrived at the structure through renewables and batteries. He invested in solar panels and battery-powered technology about 20 years ago and bought Tesla car No. 541 off the assembly line in 2008, the profile says. The intermittency problems he found in car batteries seemed comparable to the maintenance costs of commercial solar and the halting progress of battery development.

His answer was to patent battery cartridges in the canopy ceiling, which gave him "two revenue strings, but one infrastructure build." He then added EV charging to the same structure. "Now I have three revenue streams, but none of those revenue streams are all that great," he told Commercial Observer.

Site selection follows the electrical service. LT350 works out the grid network a lot is attached to and builds batteries to fit that setup, according to the profile. The batteries are there to help the grid, and pairing them with the GPU cartridges is what lets the company put compute over parked cars.

Thramann's own summary is the one allocators can underwrite against: three revenue lines, none strong alone, carried by one build above a parking lot that keeps its spaces. The structure depends on an existing mall or hospital electrical service being enough for compute at a price inference customers will pay.