Ascent Solar Technologies, a US-based manufacturer of flexible thin-film PV panels, has entered into a teaming agreement with Emtel Energy USA to integrate thin-film PV with graphene-based electrostatic long-duration energy storage. The partnership is aimed at developing lightweight, durable, and high-performance power systems suitable for satellites, spacecraft, and defense infrastructure where reliability is critical. Emtel Energy, a US-based energy storage developer, has designed a solid-state graphene alternative offering higher energy density and reduced degradation compared to traditional flow batteries. When combined with Ascent Solar’s thin-film modules, the integrated system is expected to meet Department of Defense and US Space Force requirements for long-lasting and safe energy supply in extreme environments. Earlier this year, Ascent Solar has delivered thin-film PV technology for a Colorado-based space array trial, demonstrating continued advancement in aerospace applications. Ascent Solar currently operates a 5 MW facility and has deployed modules across space, defense, agrivoltaic, and commercial projects.