As more homeowners look for ways to improve energy efficiency and cut carbon emissions, combining renewable technologies at home is becoming more popular. A common question is whether solar PV panels work effectively with an air source heat pump.
In short, yes - air source heat pumps and solar PV systems can work very well together in an energy-efficient home.
Read more: How to Choose the Right Heat Pump for Your Self-Build Home
What is solar PV?
Solar photovoltaic (PV) panels generate electricity from daylight, which can be used to power appliances and other electrical systems in the home.
During the day, solar PV can offset some of the electricity needed to run an air source heat pump.
How can solar PV support an air source heat pump?
Air source heat pumps extract heat from the outside air and convert it into heating for the home. By generating renewable electricity on-site, solar PV panels can help support the electrical demand of the heat pump during the day.
This combination can help homeowners:
- Improve overall energy efficiency
- Reduce reliance on grid electricity
- Lower carbon emissions
- Support lower long-term energy costs
Why are air source heat pumps and solar PV a good combination?
Improved energy efficiency
Both technologies are designed to improve the overall energy performance of the home. While the heat pump provides low-carbon heating and hot water, solar PV helps generate renewable electricity that can be used throughout the property.
Suitable for modern homes
Air source heat pumps and solar PV systems are particularly well-suited to modern homes across Ireland and Northern Ireland with good insulation and airtightness, including self-build and renovated properties.
Supporting lower-carbon living
Combining renewable heating with renewable electricity generation can help reduce the carbon footprint of the home while supporting more sustainable living.
Can solar PV power a heat pump completely?
Solar PV panels are unlikely to power a heat pump entirely throughout the year, particularly during winter months when heating demand is typically higher and daylight hours are shorter. However, solar PV can still contribute towards the electricity used by the heating system and help improve the overall energy efficiency of the property.
Many homeowners ask whether solar PV can run a heat pump for free. While solar PV can help reduce electricity usage from the grid, most homes will still require grid electricity at certain times of the year, particularly during winter.
What should homeowners consider?
Before installing solar PV alongside an air source heat pump, homeowners should consider:
- Roof orientation and available roof space
- Insulation and airtightness levels
- Overall electricity usage
- Heating demand
- System sizing
- Smart heating controls
Correct system design is important to help ensure both technologies operate efficiently together.
Read more: Underfloor Heating vs Radiators – Which is Best for Your Home?
Smart controls and energy management
Modern smart heating controls can help homeowners better manage heating schedules and hot water demand throughout the day.
By optimising how and when energy is used within the home, homeowners can maximise the benefits of both the air source heat pump and solar PV system.
Read more: Smart Heating Controls Explained
Combining solar PV with an air source heat pump can help homeowners improve energy efficiency, lower carbon emissions, and support a more sustainable home.
While solar may not fully power a heating system year-round, the two technologies can work effectively together to support a more energy-efficient and sustainable home.