On June 19, 2025, in Ho Chi Minh City, the German Development Cooperation (GIZ), together with public and private sector partners, introduced the Balcony Solar System for Vietnam (BSS4VN) project—marking a new chapter in Vietnam’s urban renewable energy journey.

The project follows a successful model implemented in Germany, where an estimated 800,000 to 1.5 million balcony solar systems are currently in use, providing accessible clean energy to households in dense urban areas.
The launch event welcomed a number of distinguished guests, including:
- Mr. Christopher Scholl – Deputy Consul General of Germany in Ho Chi Minh City
- Mr. Markus Bissel – Director of BSS4VN Project (GIZ)
- Ms. Lưu Thị Thanh Mẫu – CEO of Phuc Khang Corporation, Vice President of Ho Chi Minh City Green Business Association (HGBA)
- Ms. Nguyễn Ngọc Quỳnh – Deputy CEO of SolarBK and HGBA member
Representatives from leading renewable energy players such as REEPRO, 365 Energy, Tona Syntegra Solar, Blueberry Energy, and SmartSolar also joined the event.
As a pioneering contributor, SolarBK plays a key role in both hardware and software aspects:
- Hardware: Providing IREX photovoltaic panels—Made in Vietnam, designed to maximize efficiency and quality for urban balcony applications.
- Software: Deploying the ERIS monitoring platform, enabling real-time performance tracking, fast maintenance, and enhanced safety. These technologies are critical to ensuring the project meets high international standards.
SolarBK and Phuc Khang are the first two members of HGBA to pilot this green model, reaffirming their joint commitment to sustainable development and urban decarbonization in Vietnam.
Representative of SolarBK gave opening remarks at the kick-off event The pilot installation takes place at Diamond Lotus Riverside (District 8, HCMC)—a signature green building developed by Phuc Khang Mitsubishi Corporation Holding. Each balcony system is expected to generate approximately 52 kWh/month, meeting around 17% of a household’s electricity demand, with a payback period of about 6 years or sooner. With this project, Vietnam takes its first step toward scalable decentralized urban solar solutions, creating real opportunities for clean energy access in everyday living spaces.