CAS Energy is a pioneering Vietnamese startup in the field of energy and environment, founded on a foundation of over 20 years of experience in implementing climate adaptation systems. More than just a technology provider, CAS Energy is a solution builder—offering practical, low-cost, and scalable green models, particularly suited to the needs of small and medium-sized enterprises (SMEs) in Vietnam.
The company’s flagship product is REGreen—a green service model that requires no upfront investment. It supports businesses by enabling them to:
Utilize renewable energy (solar power),
Process organic waste on-site,
Create green spaces in industrial parks, factories, and urban areas.
Instead of making large capital investments, businesses simply pay through a discounted solar energy billing model, powered and operated by CAS Energy. This approach not only solves financial constraints but also accelerates green transition at the grassroots level.
What sets CAS Energy apart is its strong social impact. Through REGreen projects, the company has created green jobs for middle-aged women and farmers who lost their livelihoods during the urbanization and industrialization process. At the same time, its systems significantly reduce carbon emissions, delivering measurable benefits for both the environment and local communities.
At the P4G Summit Vietnam 2025, CAS Energy had the opportunity to showcase the REGreen model to international partners through connections facilitated by the National Startup Support Center (NSSC). The event helped boost the startup’s visibility, connect with impact-focused investors, and open new opportunities for regional expansion.
With a long-term sustainable vision, CAS Energy continues to scale the REGreen model across provinces and industrial zones, aiming to become one of Vietnam’s leading green transition solutions in the decade ahead.
