Towergy Commissions Its First Large-Scale Tower-Style Heat Pump

June 3, 2026

Source: E & M powernews

A new type of heat pump system for residential neighborhoods will go into operation in Bremen at the end of June. Towergy’s “climate tower” is designed to provide renewable heat in a compact space.

Towergy GmbH will commission its first “Climate Tower” at the end of June. The compact, large-scale heat pump system is designed to supply heat to the Klimacampus Bremen and neighboring artists’ studios on Bremen’s Überseeinsel. According to the company, the system is designed for use in densely built-up neighborhoods and residential areas. Additional projects are already in the planning stages. Towergy also plans to begin series production at its own manufacturing facility in Bremerhaven by the end of the year.

The climate tower is based on a vertically mounted air-to-water large-scale heat pump. Depending on the model, the system achieves a thermal output of between 0.3 and 1.5 MW. Air is drawn in through four sides of the tower, while exhaust air is discharged through the top of the tower. Integrated fans and silencers are designed to reduce noise levels. In addition, the pumps and electrical components required for connection to existing district heating networks are already integrated into the system. Towergy offers the patent-pending Climate Tower in four capacity sizes.

Depending on the model, the units reach a height of 11 to 14 meters. The footprint ranges from 3.8 by 3.8 meters to 5.6 by 5.6 meters. According to the company, a modular system with prefabricated components allows for installation within a few weeks. The facades can be customized. It is also possible to integrate charging stations for electric vehicles into the structure.

Towergy particularly emphasizes the low noise levels. Even the most powerful model remains below a sound pressure level of 35 dB(A) at a distance of ten meters. This makes the system suitable for use even in residential areas, according to Managing Director Tobias Werner.

The company was founded in 2025 by Werner and Rolf-Peter Strauß, a professor at Bremen University of Applied Sciences. Strauß sees potential applications primarily in densely populated residential neighborhoods. There, limited space and soundproofing requirements often pose challenges for the expansion of heat pump technologies. The first pilot project is now underway with the system’s commissioning on Bremen’s Überseeinsel.

In addition to the design, Towergy highlights a control system it developed in-house to optimize system operation. The control system analyzes weather forecasts, electricity exchange prices, and the expected heating and cooling demand for the next 72 hours. Based on this, an operating schedule is created that adjusts the heat pump’s operation to times when electricity prices are favorable and the electricity mix includes a high proportion of renewable energy.

Author: Fritz Wilhelm