The Cowa COMPACT Cube 48
Winner
Excellence in Business to Business
Energy Solutions

Details
The Cowa COMPACT Cube 48 is a highly innovative and extremely compact thermal energy storage solution for heat pumps. It stores energy for space heating and domestic hot water and achieves up to four times higher compactness than conventional water based storage systems. The core of the innovation is a Phase Change Material based on a recyclable salt hydrate with a melting temperature of 48 °C. Cowa is the only company worldwide with an industrially available PCM in this ideal temperature range, enabling heat pumps to replace more than 100 million decentralized gas boilers.
The Jury‘s Statement
The efficient use of renewable energies requires compact and powerful storage solutions to balance fluctuations and promote the transition to sustainable heating systems. Cowa COMPACT Cube 48 sets new standards here as a thermal energy storage for heat pumps, impressing with its exceptional compactness and innovative choice of materials. With a novel phase-change material based on a recyclable salt hydrate, it enables a significantly higher energy density with ideal temperature control. This not only supports the reliable supply of space heating and hot water but also makes a significant contribution to replacing fossil gas boilers. This solution combines sustainability with high efficiency and impressively demonstrates how technological innovations can pave the way for climate-friendly buildings.




