Combining solar PV with a heat pump for maximum savings

A pioneering project in North-East Wales marks the first time SOLARWATT Home and STIEBEL ELTRON technologies have been fully integrated in a UK home—delivering a seamless, intelligent solution for clean power generation, storage, and heating.
20
panels
20 x SOLARWATT Panel vision black panels fitted across two strings on two sides of a pitched roof, for a total of 9 kWp of generation
6kW
inverter
The SOLARWATT Inverter vision
(6 kW) hybrid inverter offers performant conversion of DC solar energy and fast battery charging performance
10.4kWh
battery
The SOLARWATT Battery vision (10.4 kWh) tower provides modular storage for excess solar PV, minimising the customer's imported electricity
1.07mW
generation
The system produced over 1 mW of energy in its first month of operation during a sunny April 2025 in the UK

A pioneering project in North-East Wales marks the first time SOLARWATT Home and STIEBEL ELTRON technologies have been fully integrated in a UK home—delivering a seamless, intelligent solution for clean power generation, storage, and heating.

This milestone showcases how premium European technologies, when combined, can dramatically advance the UK’s path toward sustainable living and energy independence.

An aerial landscape view of the iconic York Minster cathedral, North East England.
An aerial landscape view of the iconic York Minster cathedral, North East England.
John With Award
„Enabling homeowners to optimise their energy use based on live and forecasted solar generation by the seamless integration between the SOLARWATT Manager and STIEBEL ELTRON’s EM Trend software and the ISG, means that together we can deliver a future-ready solution for the UK market.“
John Felgate, Managing Director
STIEBEL ELTRON UK
IMG 5947
Photo credit: STIEBEL ELTRON
DJI 0832
Photo credit: Genfit
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Photo credit: SOLARWATT

The technology behind the system

The home energy system features:

  • 20 x SOLARWATT Panel vision M 5.0 black glass-glass modules (9kWp total)
  • SOLARWATT Inverter vision (6 kW) single-phase inverter
  • SOLARWATT Battery vision (10.4 kWh)
  • STIEBEL ELTRON WPL-A-07 HK 230 Premium Air Source Heat Pump

These components are integrated using the SOLARWATT Manager and STIEBEL ELTRON’s EM Trend software, communicating via the Internet Service Gateway (ISG). The result: real-time coordination of electricity generation, battery usage, and heating demand—maximising energy efficiency and comfort.

Mail Graphic   STE+SW
The EM Trend software on the customer's ISG Web is able to talk with the SOLARWATT Manager flex to build a PV-optimised 24-hour operating profile for the heat pump.

Delivered with expertise

Installation was led by Genfit, a specialist in residential and commercial solar systems for over 20 years. Their end-to-end project management ensured a smooth deployment, from system design to commissioning—backed by deep knowledge of both solar and smart energy technologies.

Their commitment to “making energy simple” ensured the homeowner received tailored advice, reliable products, and long-term support for their investment.

PYKA3416
„This is more than just a solar install. It’s about giving people real control over their energy future.“
Neal Goddard, Managing Director
SOLARWATT UK & Ireland
2024 08 20 Battery Vision 26
2023 09 21 WP Ines Weisemann 01
HAUS Anpassung Print 04 V001   Konsolidiert MASTER

The Result: A smart, low-carbon SOLARWATT Home

Now live, the system is powering the home with clean energy and heating it with precision. The homeowner has full visibility through the SOLARWATT Manager portal—tracking solar output, battery charge levels, and heat pump performance in real time.

This integration marks a step-change in what homeowners can expect from a modern energy system: clean, efficient, connected—and built to last.

SOLARWATT Home:
Control power, heating, and
e-mobility in one app.

SOLARWATT Home:
Control power, heating, and
e-mobility in one app.

SOLARWATT Home combines PV modules with battery storage and smart energy management to maximise your use of self-generated solar power. Optimise & monitor your panels, battery, heat pump, car charger, smart plugs and more in one app.