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Solar Terminal
The flexible high-voltage energy storage system suitable for KOSTAL inverters from the PLENTICORE series
available from 2026
HELIVOR HV
The modular high-voltage energy storage system for maximum flexibility
with service and guarantee from KOSTAL
More independence, more power, more future: With the KOSTAL HELIVOR HV, you can rely on a high-voltage energy storage system that harmonises perfectly with the KOSTAL PLENTICORE inverters and supports your energy future.
Volt in stock
The future of energy is in your hands. With KOSTAL HELIVOR HV, you can rely on a powerful, safe and flexible energy storage system that can be customised exactly to your needs - from private households to commercial applications.
Your advantages at a glance
- Simple installation: plug & play, plug-in connections, screwless module connections
- Space-saving & lightweight: compact design, ideal for indoor and outdoor installation (IP65)
- Flexibly expandable: from 6.4 to 230.4 kWh thanks to modular towers and parallel connection
- Maximum power: high charging and discharging power with KOSTAL PLENTICORE inverter
- Robust & safe: lithium iron phosphate technology (LFP), VDE and CE certified
- Investment security: 10-year guarantee from KOSTAL
Flexibly scalable
The KOSTAL HELIVOR HV is a real all-rounder. Thanks to its modular design, you can start with just 2 battery modules with a capacity of 6.4 kWh and expand this to up to 9 modules and 28.8 kWh per tower. For larger applications, up to 8 towers can be operated in parallel - this corresponds to a total capacity of 230.4 kWh.
This means that the HELIVOR HV energy storage system adapts to your current situation and can even grow flexibly in line with your increasing energy requirements.
Innovative and safe
With modern cell chemistry and sophisticated design, the KOSTAL HELIVOR HV offers maximum safety and reliability:
- Low-temperature technology: loading and unloading possible within a wide temperature range - ideal for any location
- High efficiency: ≥ 96 % cycle efficiency for maximum energy yield
- Smart modules: automatic balancing, storage of SoC, SoH and cycle data
- Robust housing quality: IP65 protection class - perfect for indoor and outdoor installation
- Automatic updates: via KOSTAL inverter, always up to date
Perfectly combined
The KOSTAL HELIVOR HV is optimally matched to the PLENTICORE inverter series:
- Plug & Play - no additional configuration necessary
- Automatic detection at startup
- High charging and discharging power for efficient energy flows
- Maximum independence thanks to intelligent interaction between PV system, storage system and consumers
This turns your energy system into an intelligent overall concept - efficient, reliable and future-proof.
Service & guarantee from KOSTAL
As a customer, you benefit from the proven KOSTAL service quality:
- 10-year warranty on the HELIVOR HV
- German service & support from KOSTAL
- Rapid assistance with all technical and service issues
- Maximum investment security for your energy system
Your energy future starts with KOSTAL HELIVOR HV
Whether for your own home or business - the KOSTAL HELIVOR HV is the right high-voltage energy storage system for all requirements. Easy to install, flexibly expandable and perfectly integrated into the KOSTAL system, it offers everything that is important for a sustainable and independent energy supply.