The Picea sustainable solution, developed by HPS Home Power Solutions, is a pioneering green hydrogen-based energy system for residential and commercial use. It integrates solar panels, AEM electrolyzers, hydrogen storage tanks, and fuel cells to create a self-sufficient energy ecosystem. Key features include: - Year-round energy autonomy: Stores surplus solar energy as hydrogen during summer for winter electricity/heating via fuel cells. - Thermal efficiency: Recovers waste heat from fuel cells to power space heating or domestic hot water, achieving 90% total energy utilization. - Modular scalability: Multiple Picea units can be cascaded to serve multi-family buildings or small industries. This solution addresses Germany’s mandate for 65% renewable heating by 2025, offering carbon-free warmth even in winter.