Attention maintenance work on March 9th, 2021!

Due to maintenance work, our KOSTAL Solar Webshop will not be available on March 9, 2021 from 3:00 p.m. to 6:00 p.m.

Welcome to the KOSTAL Solar Webshop!

We are pleased to welcome you to our web shop for domestic and commercial customers. Easily order accessories for your KOSTAL inverter online now. Following registration and checking by KOSTAL, commercial customers will profit from our business customer prices.

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You can find information about our products and services at our homepage. Please feel free to send any questions and suggestions by e-mail to

Have lots of fun with your online shopping.