Residential ESS

ESS Success Case

200MW +

These fields of energy storage system are under construction or already completed, specializing in heavy electricity users, TPC energy trading platform, and solar plus ESS solutions.

Billion Watts has established long-term partnerships with well-known domestic manufacturers to build a domestic one-stop renewable Energy as a Service (EaaS) company, providing energy storage battery container, Battery Management System (BMS), Power Conversion System (PCS) , and Energy Management System (EMS), which have passed relevant Taipower company communication and capability tests. We can provide diverse energy storage solution such as:grid-connected energy storage, large power consumers and behind-the-meter energy storage, and photovoltaic combined energy storage, according to different application scenarios. 


We are the first domestic manufacturer that aggregates grid-connected energy storage resources and bids for Regulation and Frequency Response Service. We have teamed up with well-known large-scale renewable energy investors at home and abroad. The construction will be completed in the second half of 2022, of which 200MW has already been opened for civil works.

Residential ESS

Taichung 11.5kW/19.8kWh

  • Installation location:4th floor of private house
  • Market application:Solar Plus ESS for self-use, coordinate with peak and off-peak power consumption schedules.
  • Product:PS20

Taipei 11.5kW/19.8kWh

  • Installation location:Apartment
  • Market application:Prevent critical loads from being interrupted due to power outages, coordinate with peak and off-peak power consumption schedules.
  • Product:PS20

Tainan 11.5kW/19.8kWh

  • Installation location:Visitor Center
  • Market application:Solar Plus ESS for self-use
  • Product:PS20

Tainan 11.5kW/19.8kWh

  • Installation location:coffee shop
  • Market application:Solar Plus ESS for self-use
  • Product:PS20

Tainan 60kW/118.8kWh

  • Installation location:High-speed rail lighting area
  • Market application:Green energy power supply system demonstration site
  • Product:PS20, using 6 devices in parallel

Tainan 11.5kW/19.8kWh

  • Installation location:under public transport viaduct
  • Market application:Monitor equipment is powered by PV+ESS
  • Product:PS20
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