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Tesla Powerwall 3 launched in Japan by TG Octopus Energy
TG Octopus Energy has announced the sale of the Tesla Powerwall 3 in Japan, with shipments starting October 1, 2026. This home battery offers 13.5 kWh storage, 9.69 kW output, and an integrated solar inverter. The system automatically switches to backup during outages and is optimized by Tesla's AI "Opticaster." Octopus Energy provides comprehensive support, an extended 15-year warranty, and special electricity tariffs.
TG Octopus Energy, an energy provider operating in Japan, has announced the commencement of sales for the Tesla Powerwall 3. Starting September 18, 2026, customers in Japan can place orders for this home battery, with shipments scheduled to begin on October 1, 2026. The introduction of the Powerwall 3 addresses the increasing demand for home battery storage, driven by growing concerns over electricity costs and the need for reliable backup power.
The Tesla Powerwall 3 is engineered to provide households with an advanced energy solution. The system can store electricity generated by solar panels for use during evening hours or periods of high demand. In the event of a power outage, the Powerwall 3 automatically switches to backup mode within seconds, ensuring a continuous power supply. The battery boasts a storage capacity of 13.5 kWh and a high power output of up to 9.69 kW. A notable feature is its all-in-one design, which includes an integrated solar inverter, allowing direct connection of solar panels.
To maximize efficiency, the Powerwall 3 utilizes Tesla's proprietary AI technology, known as "Opticaster." This system intelligently optimizes the charging and discharging of the battery by considering factors such as weather forecasts, electricity rates, and the household's energy consumption patterns. Users can monitor the system's status and energy usage via the Tesla App. Furthermore, the Powerwall 3 is built robustly, offering resistance to water, heavy salt damage, and dust, which contributes to its reliability under various environmental conditions.
TG Octopus Energy distinguishes itself by offering a comprehensive service package. This includes one-stop support for subsidy applications, installation, and initial system setup. For residents of Tokyo, for instance, there is a potential to receive up to 1.8 million Japanese Yen in subsidies when installing solar panels and a home battery together. Additionally, Octopus Energy provides an extended five-year warranty on top of Tesla's standard ten-year warranty, resulting in a total product warranty of fifteen years for the Powerwall 3. For customers who install both solar panels and the Powerwall 3, special electricity tariff plans are available, further enhancing the benefits of an integrated energy system.
The company offers two installation plans: a "Solar Set Plan" for new installations of solar panels and batteries, and a "Battery Plan" for households that already have solar panels and wish to expand their storage capacity. TG Octopus Energy, a joint venture with Tokyo Gas, has experienced rapid growth in Japan since its inception in 2021, now serving over 500,000 customers.
Source: Sankei.com
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