Tesla is increasing 4680 cell capacity by another 100 gigawatt-hours, as announced at Giga Nevada.

Promise with no deadline, judged as of the date of evaluation. TRUE: Tesla built and brought online about 100 GWh per year of additional 4680 cell production capacity at Giga Nevada, as announced in January 2023, as shown in Tesla's installed-capacity disclosures or other official records. Installed capacity of about 90 GWh or more counts as about 100. MOSTLY TRUE: the capacity was installed with a minor difference in detail, for example part of it at an adjacent site in Nevada. MOSTLY FALSE: only partial progress, such as construction started or substantially less than 100 GWh installed. FALSE: Tesla filings or dated reporting show the expansion was cancelled, shelved, or never started.

Set before the research began.

1. E1 Q2 2026 Update Tesla, Inc. (Form 8-K, Q2 2026 Update) · 26 August 2026 Own record

   “Battery Cell Manufacturing Nevada LFP 7 GWh Early Ramp Texas 4680 >40 GWh Production Cathode Materials 10 GWh Early Ramp Lithium Refining 30 GWh Early Ramp Berlin 4680 - Construction”

2. E2 Continuing Our Investment in Nevada | Tesla Tesla · 24 January 2023 Own record

   “We will be investing over $3.6 billion more to continue growing Gigafactory Nevada, adding 3,000 new team members and two new factories: a 100 GWh 4680 cell factory (with capacity to produce enough batteries for 1.5 million light duty vehicles annually),”

3. E3 Tesla finally moves forward with Gigafactory Nevada expansion for Tesla Semi and 4680 cells Electrek · 19 January 2024

   “Today, we learn that Tesla is finally starting to get some construction, or at least earth-moving, work done for the Gigafactory Nevada expansion.”

4. E4 Musk Drops the Temptation of the 4680 Battery: No More Carrot - Dangling 36Kr · 9 January 2026

   “The announcement shows that the supply contract value of high-nickel cathode materials between L&F and Tesla has shrunk from $2.9 billion to $73.86 million, a reduction of over 99%.”

Tesla announced a 100 GWh 4680 cell factory at Giga Nevada in January 2023 (E2). Independent reporting from January 2024 shows construction or earth-moving work had begun on the Nevada expansion (E3). Tesla's Q2 2026 update lists Nevada battery cell capacity only as LFP 7 GWh in early ramp, with 4680 capacity in Texas (>40 GWh) and Berlin (construction), and no Nevada 4680 capacity (E1). This points to partial progress (construction started) without the promised capacity installed, with no explicit record of cancellation.