Inside Spark Cleantech: The Accelerator Powering Climate Hardware

In this episode of Founders' Backpack, we dive into the Spark Cleantech Accelerator — one of the few programs in the U.S. built specifically for hardware-based climate tech startups. Based in Knoxville, Tennessee, Spark offers a 12-week, in-person experience that combines lab access, technical prototyping, mentorship, and a $15K non-dilutive stipend — all without taking any equity. Whether you're working on carbon capture, energy efficiency, or advanced manufacturing, Spark is designed to take your tech from prototype to pilot-ready.

Sophia and Daniel unpack what founders really get from the program, who’s a good fit, and how to craft a standout application. They share insider tips on aligning with TVA and ORNL, building a presence in Tennessee, and showcasing environmental impact to rise above the competition. If you're a cleantech founder with bold ambitions, this episode is your roadmap to getting accepted into one of the most targeted climate accelerators in the country.

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