The company is a provider of solar systems and related products and services. The core activities include: * Sales of complete solar systems, solar modules, inverters, storage systems and other related products * Consulting and planning of solar systems for private and commercial customers * Provision of services such as installation, maintenance and repair of solar systems * Sales of storage solutions for solar systems, including the integration of products like the Tesla Powerwall * Provision of additional products and services such as data loggers, monitoring systems and insurance for solar systems.