Aalto and Telkomsel Commit to Advancing Indonesia’s Stratospace Ecosystem

In a significant move, Aalto HAPS Ltd., an Airbus subsidiary specializing in stratospheric aviation services, has partnered with PT Telekomuikasi Selular (Telkomsel), Indonesia’s leading digital telecommunications company. The two entities have signed a Memorandum of Understanding (MoU) aimed at advancing the development of Stratospace-based services in Indonesia.

This partnership marks Indonesia’s leadership in the Stratospace sector, which offers dual-use capabilities for both commercial and government applications. Zephyr, Aalto’s flagship stratospheric aircraft, is designed to provide connectivity-on-demand and enhance network resilience while supporting various public-interest missions such as wide-area situational awareness and high-resolution mapping.

Joint Collaboration Across Domains

The partnership between Aalto and Telkomsel is grounded in technical, commercial, and regulatory domains. The two companies have agreed to collaborate across these areas to create a solid foundation for Stratospace-based services in Indonesia.

Technical Integration Topics

• Ground network architecture
• End-to-end interoperability with existing equipment
• Antenna configurations
• Payload capabilities
• Spectrum allocation

Regulatory Pathways

• Future flight approvals
• Coexistence of spectrum with terrestrial networks

Addressing Connectivity Challenges in Indonesia

Indonesia’s archipelago presents significant challenges in terms of connectivity, particularly in hard-to-reach 3T (three-tier) regions. The ability to operate as a stratospheric “tower in the sky” for months at a time can help bridge these gaps. Zephyr’s maturity as a complementary asset is highly relevant to Indonesia, where it can provide cost-effective and flexible connectivity solutions.

Partnership Background

The partnership builds on Aalto’s growing focus on the Indonesian market. In 2024, the company signed an MoU with Mitratel, another leading digital infrastructure provider in Indonesia, to explore how Zephyr’s stratospheric capabilities could help address coverage challenges.

Joint Work and Industrial Pathway Development

Aalto’s CEO, Hughes Boulnois, expressed his excitement about the partnership with Telkomsel: “Aalto is transitioning Zephyr and its technology system into a commercial-ready product. Our MoU with Telkomsel reflects how we are scaling Zephyr from world-leading flight heritage into service delivery, supported by strong market demand for this capability.”

For Telkomsel’s Chief Strategy & Planning Officer, Wong Soon Nam, the partnership represents an opportunity to expand high-quality connectivity solutions in Indonesia’s challenging terrain: “Telkomsel supports the Government of Indonesia’s ambition to expand high-quality connectivity, including in 3T regions where geography creates deployment challenges. Zephyr is the world-leader in high-altitude technology that can complement our existing infrastructure and help reduce connectivity gaps.”

Strategic Partnership Significance

The partnership between Aalto and Telkomsel demonstrates the growing importance of Stratospace-based services in Indonesia’s digital infrastructure ecosystem. By advancing the development of this sector, the two companies aim to create a more resilient and future-ready network that can meet the country’s connectivity demands.

As Zephyr continues to mature as a complementary asset, its potential for providing cost-effective and flexible connectivity solutions across Indonesia is becoming increasingly apparent. The partnership between Aalto and Telkomsel marks an exciting step forward in the development of Stratospace-based services in Indonesia, with demonstration flights expected from 2027 and commercial entry-into-service planned for 2028.

Indonesia’s Ambition to Expand High-Quality Connectivity

With the strategic support of both companies, Indonesia’s ambition to expand high-quality connectivity across its archipelago is likely to be achieved. The partnership between Aalto and Telkomsel serves as a testament to the potential of Stratospace-based services in bridging connectivity gaps in some of the most challenging terrain on Earth.

Key Takeaways

• Indonesia’s leadership in Stratospace
• Aalto-Telkomsel partnership aims to create a solid foundation for Stratospace-based services in Indonesia
• Collaboration across technical, commercial, and regulatory domains
• Zephyr’s maturity as a complementary asset is highly relevant to Indonesia

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