Sustainable Hospitality in the Alps
PV Capacity:
63 kWp
ESS Capacity:
22.4 kWh
Inverters Installed:
SH25T-V11 SG40CX-P2
The Background
At the foot of Germany’s highest peak, the Zugspitze, the Eckbauer Inn stands as a symbol of how alpine tradition and modern sustainability can coexist. The fourth-generation family business embarked on a complete renovation to create a future-ready, climate-neutral guesthouse powered by the sun. To achieve this vision, DachEnergie, a regional renewable energy specialist, partnered with Sungrow to design and install a combined solar power generation and battery storage solution tailored to the inn’s unique location in Garmisch-Partenkirchen.
Hybrid System Design for Alpine Conditions
The system combines a 63 kWp rooftop PV array with a 22.4 kWh Sungrow SBR battery, integrated via the SH25T-V11 hybrid inverter and SG40CX-P2 inverter. All components were selected to ensure stable performance under alpine conditions, including low temperatures and heavy snow. Special attention was given to mounting structures, cabling, and electrical protection to guarantee long-term reliability at high altitude and during seasonal weather extremes.
Digital Monitoring and Intelligent Management
Energy performance and system behavior are monitored through Sungrow’s iSolarCloud platform, providing real-time insights into generation, storage status, and consumption patterns. This transparency enables data-driven operational decisions, such as adjusting heating cycles, optimizing kitchen operation times, and managing peak loads during high visitor periods. The monitoring system also supports long-term planning by tracking seasonal variations and weather-related energy trends.
Optimized Energy Use With Storage Integration
Surplus solar energy generated during the day is stored in the battery system and discharged during evening and night-time operation. This setup allows the inn to cover most of its energy demand on site, including lighting, kitchen equipment, and guest facilities. By balancing generation and consumption across the day, the system significantly reduces reliance on grid electricity and stabilizes energy costs throughout the year.
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