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Shaping the Future Together

We work with leading organisations across industry, policy, academia, and civil society to advance resilient and flexible energy systems in Southeast Asia. FESSIA collaborates with global and regional partners, including REN21, the Long Duration Energy Storage Council, UNEZA, and the Global Grids Initiative, reinforcing our role as a trusted bridge across the energy ecosystem.

Members

Our members include leading BESS and grid developers, manufacturers, and technology providers driving key projects and deployments across ASEAN.

Champions

Carbon Trust
ARUP
Trinasolar
DNV

Insider

PHENOGY

Why Become a Member

FESSIA membership brings together organisations committed to advancing energy storage and system integration across Asia. Members gain access to a trusted platform for collaboration, insight-sharing, and engagement with key stakeholders shaping the region’s energy transition. 

Participate in exclusive working groups

Contribute to regional insights and policy recommendations

Access curated research and publications

Engage with policymakers, industry leaders, and peers

Gain visibility within a growing regional ecosystem 

Get involved

Interested in joining FESSIA? 
Submit your interest and our team will be in touch with next steps. 
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FAQ

How do I apply for membership?

Simply complete the short application form on this page. Our team will review your submission and contact you within two weeks to discuss the best membership tier and next steps.

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How much does membership cost?

We offer three tiers — Associate, Full, and Strategic Partner — with annual fees scaled according to organisation size and level of engagement. Exact fees are shared with interested organisations upon request.

What are the benefits of becoming a member?

Members gain access to exclusive working groups, early insights from our Route-to-Market reports, priority invitations to events and roundtables, networking opportunities with key regional players, and the chance to directly influence policy recommendations.

Who can become a member of FESSIA?

FESSIA welcomes a wide range of organisations including renewable energy developers, utilities, technology providers, think tanks, academic institutions, civil society groups, and government-affiliated bodies that share our vision for flexible and resilient energy systems in ASEAN.

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Contact Us

We are committed to providing ongoing support to all members.