Modular Ultra-High Power Solar Array Architecture

Deployable Space Systems (DSS) will focus the proposed Phase 2 SBIR program on the hardware-based development and TRL advance of a highly-modularized and extremely-scalable solar array (Mega-ROSA) that provides immense power level range capability from 100kW to many Megawatts in size. Mega-ROSA will enable extremely high power spacecraft applications, including: Solar Electric Propulsion (SEP) spacecraft, SEP space-tug, and large-scale Planetary and Human Exploration missions because of its ground-breaking stowed packaging efficiency, high deployed stiffness / strength, low-cost and straightforward ground test capability. The innovative and synergistic Mega-ROSA solutions, to be validated to a TRL 6 level during the proposed Phase 2 program, will enable future high power missions through low cost (25-50% cost savings depending on PV and blanket technology), high specific power (>200 W/kg to 400 W/kg BOL at the wing level depending on PV and blanket technology), extremely compact stowage volume (>50 kW/m3 for very large arrays), high deployment reliability, platform simplicity (low parts count and reduced potential failure modes), high deployed strength/stiffness (>5X stiffer and stronger than rigid panel arrays of similar sizes), high voltage capability, scalability to ultra-high power (100kW to several Megawatts), and operability in unique environments (high/low illumination, high/low sun intensity and high radiation).

NASA space applications are comprised of practically all Exploration, Space Science, Earth Science, Planetary Surface, and other missions that require photovoltaic power production through deployment of a lightweight, modular and highly scalable structural system. The proposed technology is particularly well suited for ultra-high power applications including, but not limited to, high power spacecraft, Solar Electric Propulsion (SEP) spacecraft, space-tugs, and large scale Planetary Science applications. Because the Mega-ROSA technology can package much more power into a given launch vehicle envelope than any other solar array it potentially enables future cost-constrained NASA SMD/ESMD (and other) missions because the stowed-package of an ultra-high-power array actually can fit within the designated compact stowage volume of a smaller, less expensive and more readily available launch vehicle. Mega-ROSA's ability to potentially reduce launch vehicle needs could literally provide a step function in large NASA SEP / Exploration mission cost savings.

Non-NASA space applications are comprised of practically all missions that require photovoltaic power production through deployment of a lightweight and modular structural system. The proposed technology is particularly well suited for ultra-high power applications including: high power spacecraft, space-tugs, power station applications, and other large scale applications. Mega-ROSA is well suited for applications requiring affordability, lightweight, scalability/modularity, compact stowage, operability within high radiation environments, high voltage operation, and operation in LILT and HIHT environments. Applicable non-NASA space missions include: LEO surveillance, reconnaissance, communications and other critical payload/equipment satellites, LEO commercial mapping satellites, MEO satellites & re-supply space-tugs, and GEO commercial communications satellites. A strong commercial infusion path has been identified for the Mega-ROSA technology and the proposed Phase 2 program. DSS has a formed strategic relationship with Orbital Sciences Corporation and Space Systems Loral for this program and the Mega-ROSA technology to help expedite commercialization / technology infusion into their high power applications.

This is early/mid-stage (TRL 6) — the most realistic path in is NASA SBIR/STTR, which funds small businesses and research institutions to develop technology aligned with NASA's needs (equity-free, phased funding). Check whether a current SBIR/STTR solicitation topic overlaps with this project's technology area, or contact the project directly (above) to ask.

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