Browse all Tesla solar inverter models. 1 inverters available.
Tesla needs little introduction as a carmaker, but its energy division has been building home batteries since the first Powerwall debuted in April 2015. Powerwall 2 followed in October 2016, and by 2025 Tesla had installed one million Powerwalls worldwide. The batteries are produced at Giga Nevada, Tesla’s battery factory.
Powerwall 3, in production since late 2023, changed the product in one important way: it has a solar inverter built in. Earlier Powerwalls needed a separate solar inverter; Powerwall 3 takes panels directly and replaces both boxes.
Powerwall 3 is a single-phase hybrid inverter and a 13.5 kWh battery in one wall-mounted unit. The version in our catalogue delivers 11.04 kW of continuous AC power and accepts up to 20 kW of panels at standard test conditions, spread over three maximum power point trackers (MPPT). North American units deliver up to 11.5 kW and split the solar input across six trackers.
Tesla designs Powerwall 3 for modular expansion with more battery capacity, and an existing solar inverter can still be connected on the AC side, so an older solar system does not have to be replaced.
Simplicity and scale: one box, one app, a 10-year warranty and more than a million Powerwalls in homes. The trade-offs are control and flexibility. The full warranty requires Powerwall 3 to stay connected to the internet, and the battery inside is Tesla’s own, so you cannot pair the inverter with a different battery.
The solar input accepts 60 to 550 V and tracks between 60 and 480 V. The 480 V ceiling is the one that shapes a design: with 49 V panels, ten in a string stay under 550 V even on a frosty morning, and their cold-weather operating voltage stays below 480 V, but an eleventh panel would push past both limits. Plan strings of eight to ten panels per tracker.
Current is generous. The UK datasheet allows 26 A per tracker with a 30 A short-circuit limit, so a single string of large-format panels at 17–18 A fits easily, and two parallel strings of smaller panels can share a tracker if their combined short-circuit current stays within the limit. Check your panel with the string calculator, which tests cold-weather voltage, the MPPT window and per-tracker current for Powerwall 3.