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BYD announces more than 1.5 million residential systems installed worldwide

According to its reports, BYD has added 500,000 residential systems since June 2024, while improving its line-up throughout 2025.

By

Tristan Rayner

Dec 22, 2025

BYD Energy Storage says it has passed 1.5 million installed residential energy storage systems worldwide via its BatteryBox brand, a milestone the company first announced on Dec. 18.

BYD said the milestone reflected ten years of effort in the residential and small commercial energy storage market, and claimed to be one of the most widely adopted distributed energy storage solutions globally.

BYD didn’t break down which regions its BatteryBox systems where most sold into.

The figure follows BYD’s announcement at The Smarter E conference in Germany in June 2024 that it had then reached one million installed BatteryBox systems, meaning 500,000 new systems installed in around 18 months.

“BYD Energy Storage is evolving from a battery system provider into a fully integrated solution partner for residential green energy,” said Jiang Feng, Residential Energy Storage System Director for BYD Energy Storage, in a press release.

“In 2025, we launched a full-link solution combining battery, inverter, app and cloud platform, powered by our upgraded vehicle-grade battery cell technology to deliver double the value to users. In the future, we will deepen cooperation with global home storage distributors and installers through localized marketing, professional training and a comprehensive after-sales support system.”

Alongside the installations milestone, BYD used the announcement to summarize product updates across its BatteryBox range during 2025. These included the Battery Box HVB, which BYD announced as its first Battery Box system to use Blade Battery technology, which increased gravimetric energy density to 108.8 Wh/kg and volumetric energy density to 162.88 Wh/L.

BYD also highlighted the Battery Box HVE platform, which it launched as its first integrated storage system for residential applications, with modular design, supporting module sizes of 4.29 kWh and 6.43 kWh.

The company also pointed to its move into bundling batteries with BYD branded inverters, marketed under the Power Box name.

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Written by

Tristan Rayner

Tristan is an Electrical Engineer with experience in consulting and public sector works in plant procurement. He has previously been Managing Editor and Founding Editor of tech and other publications in Australia.

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