Viktor Wingert is a co-founder of Enpal, which he started in Berlin in 2017 with Mario Kohle and Jochen Ziervogel.
Enpal rents rooftop solar systems to homeowners on a lease, so there is no large upfront payment. Early backers included Lukasz Gadowski and Alexander Samwer. SoftBank and Leonardo DiCaprio's fund joined later.
In 2021 Enpal opened its own training centre for installers and electricians. Revenue rose from €56 million in 2020 to €115 million in 2021. In 2022 it reached about €415 million and made its first profit.
By December 2023 Enpal had installed 60,000 solar systems. Revenue passed €1 billion in 2025.