Member - Green-Y

The world's cleanest and most economical energy storage system

Type Startup or self-employed
Founded 2018
Company Size 4
Member Type
Founders Rafik Barhoumi
Headquarters 3415 Rüegsauschachen, Switzerland
Social network


Green-Y provides a combined solution to tackle two major challenges of our energy future:
1. How to efficiently store electricity from renewables?
2. How to provide heating & cooling from renewables?
We give the answer by combining the electricity storage with a heating and cooling unit in one decentralised device: "Green-Y = Battery + Heat Pump". This leads to a highly efficient tri-generation energy storage system which allows storing electricity far below 1 ct/kWh.
Headquarters 3415 Rüegsauschachen, Switzerland

SDG’s of application

The Sustainable Development Goals are a call to action to end poverty, protect the planet and ensure peace and prosperity everywhere.
Clean water and sanitation
SDG 6 icon
Affordable and clean energy
SDG 7 icon
Industry, innovation and infrastructure
SDG 9 icon
SDG 11
Sustainable cities and communities
SDG 11 icon
SDG 12
Responsible consumption and production
SDG 12 icon

The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. To validate the Membership to the World Alliance for Efficient Solutions, the Solar Impulse Foundation only verifies that each entity is registered and has signed our principles and values stated in the following World Alliance for Efficient Solutions charter. For those Members who are also solution providers, this information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances.