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The large European rivers are used for generating electricity only by huge damns that stop the river. We miss the opportunity to harvest the constantly flowing hydrokinetic energy for local and decentralized electricity production.


An innovativ mobile and floating electricity generator. Dimensions are 1m x 1m x 1,5m. Power production is 0,8 kW in 7/24 at an average river speed. The PowerWhale generator can be simply tied downstream of floating pontoons or fixed boats along the riverbanks. The generated electricity can be used locally or sold to the grid.

Uniqueness, Technology overview, barriers to competition

Instead of a traditional water wheel it spins a sequence of blades that move on triangular shaped tracks. While most of the blades are working under water critical moving parts of the PowerWhale and the generator module are above the water level which makes maintenace easy. This new and effective way of transforming hydrokinetic energy is protected by a patent.
PowerWhale’s advantage to other renewable energy sources is its predictable production. It can work 24 hours a day and 365 days a year.

Market size and analysis

Owners and operators of pontoons, jetties and fixed boats will buy PowerWhale. These riverbank facilities are in a very good position to generate electricity. They are already established, closer to the stream and easy to fix the mobile generators to. The riverbank facilities in Europe are used for commercial and recreational mooring, for bars and restaurant and even for hotels and housing.
We have 11 large rivers In Europe. We use about 9000 kilometres of these rivers for commercial and recreational boating. There are more than 9000 pontoons and fixed boats tied to the riverbanks. More than 3000 of these use electricity and pay for it.


The prototype will be ready by the end of October. A fixed boat that rents out offices in Budapest already offered to test and possibly buy the first turbines.

Core Team

First Name Last Name Job Title Impressive Facts
Dénes Hajtó CTO Naval engineer, inventor, 15 years of experience in designing and building boats and floating harbours
Gábor Törő Business Developer Management consultant, 20 years experience of building and managing innovative companies

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