SUNROVER Delivers Cutting-Edge Energy Independence to Estonia with 30kW/80kWh Solar-Plus-Storage Installation

Tallinn, Estonia – January 2024* – SUNROVER has marked its Nordic market expansion with the successful deployment of a flagship 30kW/80kWh commercial Energy Storage system at a logistics hub near Tallinn, showcasing robust performance in sub-zero climates while earning high praise from its Estonian client.  

System Configuration  
- Solar Array: 80 x SUNROVER 440W N-type TOPCon all-black panels (35.2kW capacity)  
- Storage: 2 x SUNROVER HV Stackable 40kWh Lithium Batteries (80kWh total)  
- Architecture: DC-coupled design with smart thermal management  

The installation generates 42-48kWh daily – sufficient to power 100% of the facility’s daytime operations and 65% of nighttime energy needs through Battery Storage. Notably, the system maintained 94% round-trip efficiency even at -15°C, a critical performance benchmark for Nordic applications.  

Client Validation 
"After surviving three Baltic winters, SUNROVER’s equipment outperformed our expectations," stated Karl Järv, CEO of Nordic Logistics Partners. "The N-type panels delivered 12% higher yield than our previous PERC array, while the battery’s 6,000-cycle lifespan ensures ROI within 5 years. Their engineering team’s -30°C low-temperature certification process proved invaluable."  

Technical Excellence
The solution leverages:  
- N-type cells with 22.6% efficiency and 0.23% annual degradation  
- Battery heating enabling stable operation from -30°C to 55°C  
- IP68-rated components resisting coastal humidity and salt corrosion  

SUNROVER: "This project validates our cold-climate engineering – from anti-PID solar cells to battery electrolyte formulations. Our localized support team completed installation in 48 hours despite snowstorms, demonstrating operational resilience."  

The client particularly praised SUNROVER’s "plug-and-play" modular design, allowing future capacity expansion to 150kWh without infrastructure upgrades. 
This installation positions SUNROVER as a key enabler of the Baltic Clean Energy Transition, combining German-engineered precision with Nordic operational durability.