Welcome to “Beyond the Grid,” a Q&A series where we delve into the pivotal role of power in space. Through interviews with leaders in space technology, we explore the challenges, strategies, and innovations shaping the future of space power. In our inaugural interview, we spoke with Mark Miner, PhD, PE, Gravitics’ Head of Mission Sciences. With 16 years of experience in thermal and research engineering, aerospace, and manufacturing, Mark offers invaluable insights into the complexities and advancements in space power systems.

Tackling Power-Related Challenges

Q: What are the biggest power-related challenges you expect to face or have faced in developing/deploying your technology?

Mark Miner: The usual twins, generation and storage. We’re looking to house all kinds of activities in our vehicles, and reliable solar generation has to pair with serious batteries. 

Analysis: In space, reliable power generation and storage are critical. The harsh environment and limited resources make it imperative to have efficient solar panels and high-capacity batteries. mPower’s contribution to affordable solar solutions enhances the reliability of power systems in space vehicles, ensuring continuous operation of essential activities.

Maximizing Reliability, Cost, and Performance

Q: How do you think about maximizing the reliability, cost, and performance of your solar arrays?

Mark Miner: It starts with customer requirements, then to the simplest suitable system to meet them. We do not have a bells-and-whistles power system, but we focus on proven components, and we want our supply partners to shine in their areas of expertise.

Analysis: By focusing on customer requirements and simplifying systems to their core components, Gravitics ensures that their power systems are both reliable and cost-effective. This approach not only streamlines development but also leverages the strengths of supply partners, resulting in high-performance solar arrays tailored to specific needs.

Adopting Recent Technology

Q: What type of power technology do you use for your system(s) and why?

Mark Miner: We aim to adopt demonstrated recent technology, rather than, say, ultra-heritage designs from decades ago. We believe this offers our customers the best performance at a reasonable cost while building a design baseline that will allow us years of use.

Analysis: By adopting recent, demonstrated technologies, Gravitics ensures that their systems are at the forefront of innovation while maintaining cost-efficiency. This strategy provides a solid foundation for long-term use and adaptability, essential for the dynamic and evolving needs of space missions.

The Impact of Supply Chain Issues

Q: How do you see supply chain issues affecting your ability to develop, design, and provide power systems for your technology?

Mark Miner: Strongly. We will always favor a supplier that is available and willing to co-solve problems in their domain. This is possible with distant suppliers, but we especially value the ability to pick up the phone and talk through a question or a concern promptly. The material supply chain is very important, but the key to good engineering is the information supply chain, especially for a young company.

Analysis: Supply chain issues are a significant concern in the development of power systems. Gravitics prioritizes suppliers who are not only reliable but also collaborative problem-solvers. The emphasis on effective communication and information exchange highlights the importance of an agile and responsive supply chain in overcoming engineering challenges.

Mark Miner’s insights underscore the critical role of power in space exploration and the importance of reliable, cost-effective, and innovative power systems. By focusing on customer needs, adopting recent technologies, and maintaining a strong supply chain, Gravitics is poised to lead the charge in powering the final frontier. 

Follow us on LinkedIn to stay tuned for more interviews in our “Beyond the Grid” series as we continue to explore the future of space power.