About us

Making dispersed renewable energy sources a great power.

You know the story of Swimmy, a small but incredibly clever fish who faces off against a giant fish in the community of other small fish in a vast ocean. Our co-founder, Josef Werum, co-chair of in.power GmbH in Germany, met with a scientist in Freiburg in 2007, who mentioned the story Swimmy by Leo Lionni, a story that fascinated Werum and led to an innovative business idea for in.power. Since then, Swimmy has become a symbol of equal cooperation between in.power and dispersed renewable power plant owners, demonstrating the great power of renewable energy in a fiercely competitive environment.

zec.power was founded by in.power GmbH in Germany and ZEC Inc. in Japan. In Japan, it is becoming necessary to integrate renewable power into the market. zec.power will support the integration of renewable power into the market by making dispersed renewable energy source a grat power.


As the No.1 reliable aggregator of renewable power.

A market premium scheme based on a feed-in premium (FIP) will be introduced as a means of direct marketization of renewable power. Most renewable energy operators should have no experience of selling electricity to the market and the FIP won’t work well without an aggregator who is responsible for direct marketing.
It’s not easy for individual renewable power plant owners to conduct market transactions and manage risks by themselves.

zec.power will walk on a new path together, as the No.1 reliable aggregator of renewable power.


For more than a decade, in.power GmbH has been making the concept of VPP a reality, working equally with dispersed renewable power plant owners and demonstrating to the market the great power of renewable energy in a fiercely competitive environment. in.power GmbH currently has a power portfolio of over 1,300 MW, it sells directly to the EPEX SPOT and others, and is one of the largest independent players in Europe. The entire in.power Group has been providing a wide range of services over the years, including metering, green electricity sales, power demand optimization and adjusting, and consulting.


in.power GmbH began trading power on the EEX in 2007 and has been selling directly on the EPEX SPOT since 2009. in.power GmbH has been selling renewable electricity directly to the market even before the German FIP system started, and have been highly trusted by power plant owners.
ZEC Inc., on the other hand, has developed a number of solar power plants since around 2012, utilizing funds and other financial resources, and has extensive experience in renewable energy, particularly solar power, in Japan.

R & D

in.power GmbH has participated in numerous R & D projects in Germany, specializing in VPP (virtual power plants) and business model development. One of the main research is the “E-Energy” project funded by the German federal government. Information and communication technology (ICT) played a central role in this project, which advocates the ICT-based energy system of the future, and the operation of an intelligent energy system that enables numerous renewable power generation facilities to communicate with power grid facilities and electricity-consuming devices was attempted. In addition, in.power works closely with research institutions and universities.


ZECPOWER Inc. (zec.power)
Address 2-7-1 Hatchobori, Chuo-ku, Tokyo, 104-0032 JAPAN
Phone 03-6280-3878
Board Members Representative ISAO YANAGAWA
Board Member JOSEF WERUM
Establishment January 2020
Shareholders in.power network GmbH/ GERMANY
Zero Energy Company(ZEC), Inc./ JAPAN