Tesla's Shanghai-based Megafactory reaches a significant achievement of assembling its 1,000th Megapack energy storage system.
Tesla's Shanghai Megafactory Expands Global Energy Storage Capacity
Tesla's Shanghai Megafactory, located in the Lingang area of Pudong, Shanghai, has significantly boosted the company's global energy storage capacity. The factory, which began production on February 11, 2025, has already achieved the 1,000th unit milestone in less than six months.
The Shanghai Megafactory primarily produces the Megapack, an ultra-large commercial energy storage battery. Each Megapack, which resembles a shipping container and weighs over 38 tons, can store about 3,900 kWh of electricity, equivalent to the battery capacity of 62 Model 3 rear-wheel-drive vehicles.
The annual production capacity of Megapacks at the Shanghai Megafactory will reach 10,000 units, with an energy storage capacity of nearly 40 GWh. This production capacity is intended to supply Tesla’s large-scale energy storage projects globally, supporting grid balancing and peak shaving applications.
The energy storage capacity of a single Megapack is enough to power 50,000 households in Shanghai for a year. The first batch of Megapacks produced at the Shanghai Megafactory was shipped overseas on March 21, destined for Europe.
Tesla's energy products are currently deployed in over 65 countries and regions worldwide. The Shanghai Megafactory is Tesla's first energy storage project outside the US.
The Shanghai Megafactory also produces the Model 3 and Model Y for the Chinese market. This diversification in production allows Tesla to cater to various demands, further solidifying its position in the global market.
[1] Tesla's Shanghai Megafactory aims to manufacture up to 10,000 Megapacks annually in the long term, with a total energy storage output capacity of about 40 GWh per year.
[2] Each Megapack stores approximately 3.9 megawatt-hours (MWh) of electricity, consistent with Tesla’s specifications for this product line.
[3] This production capacity is intended to supply Tesla’s large-scale energy storage projects globally, supporting grid balancing and peak shaving applications.
[4] The total storage capacity of 10,000 Megapacks is about 40 GWh annually (10,000 packs × ~3.9 MWh each = ~39 GWh, rounded to 40 GWh).
[5] The Shanghai Megafactory started producing Megapacks in early 2025.
[6] The energy storage capacity of a single Megapack, equivalent to the battery capacity of 62 Model 3 vehicles, is adequate to power 50,000 households in Shanghai for an entire year.
[7] Tesla's Shanghai Megafactory, initially set up for the production of the Megapack, has also begun manufacturing the Model 3 and Model Y for the Chinese market.
[8] China, being the world's largest market for electric vehicles (EVs) and with a growing demand for renewable energy, presents an ideal location for Tesla's expansion into the energy storage industry.
[9] The Shanghai Megafactory's market entry marks Tesla's first foray into energy storage production outside the United States, bolstering the company's presence in the international renewable-energy scene.
[10] As Tesla's Shanghai Megafactory expands its production capacity, it contributes to the global market by offering a competitive, sustainable solution for energy storage, becoming a significant player in the energy storage and EV industries' finance and technology sectors.
