# Emerging Research and Industrial Directions

## Advanced Materials and Membranes
*Highlight progress in catalysts, membranes, and gas-diffusion layers.*

## Integration with Renewable Grids and Storage
*Discuss hybridization with batteries, demand response, and grid services.*

## Digital Twins and AI-Driven Optimization
*Describe opportunities for physics-informed machine learning and fleet analytics.*

## Scale-up and Economic Considerations
*Summarize cost drivers, manufacturing scale-up, and techno-economic metrics.*