Tesla Gigafactory 1 Timeline & Results — CleanTechnica Deep Dive

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Tesla’s Gigafactory 1 in Nevada is a proof of concept. Originally, the factory was supposed to be completed in 2020, have a production capacity of 35 GWh of battery cells and 50 GWh of battery packs, and employ 6,500 people.

In 2017, these plans were altered publicly, as Elon Musk claimed that the company found a way to use space more efficiently and set new goals of 105 GWh of battery cells and 150 GWh of battery packs — triple the initial goals. That would also mean employing around 10,000 people when complete.

The only problem is that Tesla didn’t provide a new timetable, which has led many people to assume that the factory is still supposed to be finished in 2020. Though, given the much bigger production targets, it’s actually unclear if 2020 is the end of the roadmap or not.

In any case, by multiple criteria, the factory is only around 30% complete. Given the significant progress, recent updates from Tesla, and overall curiosity (and confusion) about this, we decided to dig in. We went back in time and collected all relevant news stories and reports since the first announcement of the Gigafactory. Have a look.

1* — Extrapolated projection if construction had continued. 2* — Extrapolated projection if Tesla continues construction at the pace it left off. GWh Output — 100% = 150GWh (if you use the investment scale you can substitute $15.0B for 150GWh). Qualified Employees — 100% = 10,000 Employees.

Quick Overview

What this graph shows is that the speed at which the structure was being built was exponential, until it wasn’t. Tesla stopped expanding the structure for almost 2 years. If the company resumes expanding the building right now and can pick up the speed where it left off, then the building will be completed sometime in 2020.

As for the GWh battery cell production capacity of the Gigafactory, that has apparently been increasing somewhat exponentially as well. We know that Tesla reached 20 GWh of production capacity around August, and it was on schedule to reach 35 GWh by the end of 2018 last we heard. We reached out to Tesla for confirmation on this matter but did not receive confirmation or denial.

The last bit of data on this graph cover the number of people (excluding construction workers and non-qualified employees) who are employed at the Gigafactory. The number is in percent out of 100% (10,000 jobs), so as to better compare with building completion and GWh output. What we see on the graph is that up until 2018, the number of employees hired is approximately on par with building completion.

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Our research has revealed a few very surprising tidbits of information. A while ago, it was announced that Tesla had 7,059 employees at the Gigafactory. However, our deep dive has revealed that in reality the original 6,500 employee goal (which was later extended to 10,000) only includes “qualified employees,” while the 7,059 figure includes all employees.

So, how many of the 10,000 qualified employees had actually been hired at that time? The answer is only 4,247.

It is very surprising that Nevada released the number of all employees since in the past it has only published the number of qualified employees. It’s like comparing apples to apples & oranges. Nonetheless, this is actually very useful information. Here’s an excerpt from Tesla’s original 98 page incentive agreement with the Nevada Governor’s Office of Economic Development from 2014:

One of the new things we have learned from this is that, once complete, the Gigafactory will very likely employ not 10,000 people but more than 13,000 employees. This is because the 6,500 employee figure (and by extension the 10,000 employee figure as well) only includes the qualified employees. If you also count the current number of non-qualified employees, you get around 13,000.

While there is insufficient data to confidently conclude how many non-qualified employees there will be at the Gigafactory once complete, if today’s figures represent an accurate ratio, then it could very well be that when complete, the Gigafactory will employ more than 15,000 or 16,000 people.

Building completion

The reason we have chosen in our calculations to disregard the year in which Tesla didn’t expand the building is because the number of construction workers at the site has only increased. This is why we believe Tesla might pick up building construction at the pace it left off at. Here is a graph showing the number of construction workers:

You might be wondering what that strange drop in July 2016 is all about. We have included this on purpose to shed some light on a few discrepancies in the data we have stumbled upon.

Until July 2016, the Nevada’s GOED (Governor’s Office of Economic Development) published quarterly reports on qualified employees and investments made into the Gigafactory. At first glance, it seemed like they were over-calculating the number of employees and at times misplaced up to $2 million of investments per quarter until it became clear that they were publishing unaudited data and that such adjustments are normal.

After Q2 2016, Grant Thornton, an auditing company, took over the reporting, and while they published a lot later and the numbers were lower, they were apparently more accurate. If you pay close attention to our first graph in 2016, there is also a slight decline in qualified employees that has to do with the same transition.

Annual GWh production capacity

While mathematically the extrapolated projection is accurate, in reality, the final 15–25% might end up looking a bit different. If the Model 3 ramp is any indication, it’s way harder to hit those final percentage points. The biggest difference is that in Fremont Tesla is running out of space and needs to find a way to cram it all in. At the Gigafactory, Tesla could simply expand the building a bit more and add additional production lines and not invest all that effort into speeding up existing lines to hit some arbitrary number.

Investments & employees of Tesla, Panasonic, and others

Not to clutter up the first graph, we have kept the division of employees and investments between Tesla, Panasonic, H&T, and Valeo separate.

For those unfamiliar with H&T, “Heitkamp & Thumann Group is a leading global partner for the supply of world class precision formed components in metal and plastic.” It has invested $99 million since Q2 2017.  Valeo is an “Automotive supplier” that has thus far only invested $9 million once, in Q2 2017.

Tesla has invested a total of $2.754 billion and Panasonic has invested $1.591 billion. In total, $4.453 billion has been invested into the Gigafactory.

As per our first graph, the total investment is likely to be between $7.5 billion and $10 billion. The math says $7.9 if they finish before the end of 2020 (as per the original schedule) or $8.8 billion if they finish a whole year later.

In Conclusion

At this point, it’s unclear if Gigafactory 1 will be completed before the end of 2020. However, if everything goes well and follows the trend lines, it is possible. Our current theory is that all this time Tesla (together with Panasonic) has been developing better battery lines and better batteries. Once satisfied, they will simply have to copy & paste that new design, so that might make matters a bit simpler. In this case we will suddenly see a lot of rapid progress. The only question is when this turning point will be. The fact that Tesla has recently made a new parking lot indicates that this turning point could happen at any moment.

Some of the haters might again try to say that the Gigafactory timetable was planned using the patented “Elon time” metric and has resulted in delays. Despite any delays (if there will be any), production capacity today appears to be approximately the production capacity originally targeted for 2020 — quite an early arrival.

Tesla is building the biggest battery factory in the world, becoming the biggest battery manufacturer, and trying to “accelerate the world’s transition to sustainable energy.” In perspective, this is critical to the future of humanity, and critical to averting catastrophic climate change. So let’s be thankful this project is rolling along so quickly.

Timeline of Events

For those who are interested, below is a satellite picture of the Gigafactory showing approximately when each section was completed. Underneath that is a timeline of various Gigafactory 1 related milestones, events, and announcements. Here is a link to Nevada’s GOED website that contains all the reports they have published over the years.



February 26 — Gigafactory announced by Elon Musk

July — The factory breaks ground



September 8 – Section C is done

October – Tesla moves the energy storage production line from Fremont to the Gigafactory



February 19 – Section A and B done

February 24 – Section D done

April 26 – Battery cost is below $190/kWh

July – Construction of sections D’, E, E’, and F begins

July 29 – The grand opening (side note: Elon Musk retweeted one of our stories about Gigafactory 1 that week)

December 8 – There are now 850 employees and there will be 1,000 more in H1 2017

December 22 – Sections D’ and E’ are complete but the roof has not yet been painted



January 4 – Tesla starts 2170 NMC battery cell production for Powerpack 2 and Powerwall 2

February 18 – Tesla hints at 35% battery cost reduction instead of 30%

February 27 — Nevada’s executive director of the Governor’s Office of Economic Development indicates Tesla plans to hire around 54% more workers for the Gigafactory project than was initially expected

March 23 – Section F completed, section D’ and E’ roof painted white

June 18 – Tesla starts 2170 NCA battery cell production for the Model 3

August 5 – Small part added to section F (labeled on image as F+)

August 8 – Elon claims capacity is already higher than any other battery factory

October 26 – GF1 seems to be a Model 3 production bottleneck

November 29 – Battery module assembly revealed to be the bottleneck



February 26 – Tesla starts installing solar panels on roof

March 12–23 – Tesla starts moving ground for the new parking lot

June 7 – The new parking lot is completed

July 31 – It is indicated Gigafactory will have 35 GWh battery cell production capacity at year end but still has 30% to go — and since at the end of year there will be 13 production lines, that implies there were 9 or 10 at that time

August – Tesla achieves 20 GWh battery cell production capacity and also achieves 40% uptime (expects 90% upon completion) and reveals that all production resources went to Model 3 NCA batteries, which resulted in Powerpack and Powerwall delays

August 20 – Solar panel expansion

September 20 – Solar panel expansion

September 27 – It is announced Panasonic will add 3 more battery lines before 2019, for a total of 13 (so, 10 in place at the time)



January 1 – Gigafactory battery cell production capacity now at 35 GWh?


If you have any questions about this article or the data, let me know in the comments below or on twitter via @ChananBos.

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Chanan Bos

Chanan grew up in a multicultural, multi-lingual environment that often gives him a unique perspective on a variety of topics. He is always in thought about big picture topics like AI, quantum physics, philosophy, Universal Basic Income, climate change, sci-fi concepts like the singularity, misinformation, and the list goes on. Currently, he is studying creative media & technology but already has diplomas in environmental sciences as well as business & management. His goal is to discourage linear thinking, bias, and confirmation bias whilst encouraging out-of-the-box thinking and helping people understand exponential progress. Chanan is very worried about his future and the future of humanity. That is why he has a tremendous admiration for Elon Musk and his companies, foremost because of their missions, philosophy, and intent to help humanity and its future.

Chanan Bos has 118 posts and counting. See all posts by Chanan Bos