Installer portal
Download
Solar Terminal
KOSTAL inverters and batteries compatible with Heartbeat AI
Get more out of your solar system – with KOSTAL and Heartbeat AI
News
Read more
VARTA introduces VARTA.wall BM2: another storage solution for the KOSTAL PLENTICORE
New modular high-voltage storage system for flexible PV applications from Varta
KOSTAL PLENTICORE G3 inverter certified for Finland’s reserve market
Efficient energy management and new opportunities for modern grid services
KOSTAL expands its range: Dyness STACK100 Pro is now compatible with PLENTICORE inverters
Greater flexibility for installers, greater scalability for projects in outdoor and commercial settings
KOSTAL launches Solar 4me, a new generation of apps
Phase 1 available now – Phase 2 to follow in 2026
Success for "Made in Europe": Every second project already relies on inverters produced in the EU.
Austria's current subsidy environment reflects a distinct trend: a focus on quality.
KOSTAL named winner of the HTW electricity storage inspection 2026
More solar energy, lower grid consumption and greater cost-effectiveness in everyday life – the SPI seal creates transparency and security
KEY 2026: KOSTAL presents HELIVOR HV high-voltage storage system in Rimini
From 4 to 6 March 2026, the KEY - The Energy Transition Expo trade fair will take place at the Rimini Expo Centre.
Modern energy management "repowered" with KOSTAL, ZYC and Tibber
Mit Repowering, Batteriespeicher und dynamischen Stromtarifen den Eigenverbrauch steigern