Member - cowa-ts.com
Cowa is developing a thermal storage solution to boost renewables in residential buldings.
Type
Startup or self-employed
Founded
2019
Company Size
3
Member Type
innovator
Founders
Prof. Dr. Jörg Worlitschek, Simon Maranda, Remo Waser
Headquarters
6039 Root, Suisse
Social network
About
Rooftop photovoltaic (PV) systems in combination with heat pumps are a key technology for decarbonisation of the residential sector. The main challenge of these systems is the temporal mismatch between the PV electricity supply and the heating demand of the building, resulting in a self-consumption ratio of only 30%. Cowa is developing a compact thermal storage solution that allows to store excess PV electricity produced during midday and to release this energy during periods of solar outage, thereby increasing the self-consumption ratio of the system.
Cowa's solution is based on capsules filled with Phase Change Materials (PCM). These materials offer a high energy density by utilizing a solid-liquid phase transition. The capsules are stacked into conventional heat pump water storages (buffer storages) to increase their storage capacity up to a factor of four. The extra storage capacity added by the COWA-Caps can boost the self-consumption ratio of PV driven heat pump systems from 30% to 70%.
Headquarters 6039 Root, Suisse
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.
SDG 6
Clean water and sanitation
SDG 7
Affordable and clean energy
SDG 9
Industry, innovation and infrastructure
SDG 11
Sustainable cities and communities
SDG 12
Responsible consumption and production
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