AUSTIN, Texas — Tesla's energy storage business has become the benchmark the rest of the industry is chasing. Of the 57 gigawatt-hours of large stationary batteries installed in the United States last year, Tesla was responsible for 82% — a level of dominance that is now pulling GM, Ford, and a wave of venture-backed startups into the market it built.
The scale of the lead was laid out in a June 10 TechCrunch analysis of the storage market, which detailed how legacy automakers are scrambling to field competing products while Tesla's Megapack and Powerwall lines keep compounding.
The Numbers Behind the Lead
Tesla's annual revenue from energy generation and storage has doubled since 2023, driven by Megapack and Powerwall growth. Gross margins in the segment run around 30% — roughly double what Tesla earns selling vehicles and at least three times the typical automaker margin. For comparison, GM's gross margin has averaged just over 11% across the last 15 years.
Demand shows no sign of cooling. Stationary battery sales have doubled in the past two years, and the Solar Energy Industries Association expects annual U.S. installations to exceed 110 GWh by 2030 — about double today's rate — powered by AI data center buildouts and the electrification of transportation, manufacturing, and HVAC.
Competitors Validate the Market
GM's response, announced this week, is a new sodium-ion battery chemistry aimed at utility-scale storage — but its first cells will not be ready until later this decade. Ford entered the space last December, and startups are raising heavily: Base Power closed a $1 billion Series C, while Lunar Energy raised $232 million for home batteries.
The rush is the clearest possible validation of the strategy Elon Musk has pursued for a decade. While competitors are only now designing their first dedicated storage products, Tesla is already shipping at gigawatt scale from dedicated factories — and its Brookshire, Texas plant is preparing Megapack 3 and Megablock production with a 50 GWh annual target. That manufacturing depth mirrors the playbook Tesla is running elsewhere, from converting Fremont lines for Optimus Gen 3 production to scaling Semi output in Nevada.
A Head Start Measured in Years
Every rival entering storage faces the same math: Tesla has the installed base, the supply chain, the software stack, and margins that fund further expansion. New chemistries like sodium-ion may eventually carve out niches, but they arrive years behind a competitor that is still accelerating.
Tesla's efficiency-first engineering culture — the same one that produced the record-setting 165 Wh/mile Cybercab — has turned energy storage into the company's fastest-growing and highest-margin business. With AI-driven electricity demand set to nearly triple data center consumption by 2030, the market is growing fastest exactly where Tesla is strongest.
