First 9-in-1 heat pump transforms load into an energy hub

Differ Power has announced the upcoming launch of its D1 Series, the world’s first 9-in-1 integrated solar-storage air-to-water heat pump system, which transforms the traditional load into a comprehensive home energy hub. This innovative product combines heating, cooling, domestic hot water, PV inversion, battery management, backup power, and home energy control into a single platform, marking a significant shift in residential energy systems.

The D1 Series is designed primarily for European residential markets, supporting new-builds, retrofits, and properties with existing or planned rooftop PV installations. Unlike conventional setups that require multiple separate devices—such as heat pumps, solar inverters, and energy controllers—the D1 Series consolidates these functions into one integrated platform. It employs an automotive-grade thermal technology paired with AI data center cooling techniques, utilizing low-GWP refrigerant R290 to enhance environmental sustainability.

Key features include an integrated hybrid solar inverter that manages PV inversion and battery charge/discharge, with the capability to recover waste heat from power electronics to improve the heat pump’s efficiency. Through a single app, users can monitor and control both thermal and electrical systems, simplifying operation and maintenance. The system can respond dynamically to PV generation, reducing reliance on fixed schedules, and can switch household loads to backup power instantaneously during outages, depending on battery capacity. Installation time is expected to be cut by up to 50% compared to traditional multi-vendor setups, thanks to the platform’s integrated design.

Transforming Home Energy Management with Integrated Systems

This development signifies a major advancement in residential energy technology, positioning the heat pump as a central energy management hub rather than just a heating and cooling device. By integrating solar, storage, and power management, the D1 Series aims to improve overall system efficiency—potentially by more than 10%—and simplify installation and operation. This could accelerate the adoption of fully integrated renewable energy solutions in homes, supporting broader decarbonization goals and grid stability efforts across Europe.

Emergence of Multi-Function Home Energy Platforms

Traditional residential heat pumps primarily provide space heating and cooling, with separate components handling PV, battery storage, and energy management. The trend toward integrated systems has gained momentum, driven by the need to optimize energy use, reduce costs, and simplify installations. Differ Power’s D1 Series builds on this trend, combining these functions into a single platform to address the complexity and inefficiency of multi-vendor setups. The company plans to introduce the product at Intersolar Europe 2026, targeting European markets where grid standards like UK’s G98/G99 and Italy’s CEI 0-21 are supported.

“The D1 Series could significantly streamline residential energy systems, reducing installation times and increasing efficiency.”

— an anonymous researcher

Details on Deployment and Market Adoption Still Emerging

It is not yet confirmed how quickly the D1 Series will be adopted across different European markets, nor whether additional versions for commercial or industrial applications will be developed. Details about long-term performance, real-world efficiency gains, and user acceptance remain to be seen, as the product is set to be showcased but not yet widely available.

Expected Launch and Demonstration at Intersolar Europe 2026

Following its presentation at Intersolar Europe 2026, Differ Power plans to move toward commercial availability of the D1 Series, with initial models supporting 12 kW, 14 kW, and 16 kW heating capacities. The company will likely gather feedback from early adopters and industry stakeholders, potentially leading to further versions tailored for different markets and applications. The event will also serve as a platform to demonstrate the system’s capabilities and gather industry interest for broader deployment.

Key Questions

How does the D1 Series improve energy efficiency?

The system reduces energy losses by integrating PV, storage, and heating functions into one platform, enabling direct PV and battery power use for thermal needs and minimizing multiple conversion stages. This integration can improve overall efficiency by more than 10%.

Can the D1 Series support existing home setups?

Yes, the D1 Series is designed for retrofit projects and can be integrated into existing residential systems with rooftop PV, supporting a range of European standards.

What are the main advantages of an all-in-one heat pump system?

Advantages include simplified installation, reduced hardware and maintenance, improved energy management, and the ability to respond dynamically to PV generation and grid conditions, enhancing overall system performance.

When will the D1 Series be available for purchase?

Details about commercial availability are not yet confirmed, but the product will be showcased at Intersolar Europe 2026, with initial models expected to follow shortly after.

Will the system support backup power during outages?

Yes, the D1 Series includes an emergency power supply function that can switch household loads to backup power instantly, depending on battery capacity and configuration.

Source: PV Magazine