These technologies solve different problems:
- Heat pumps change how you generate heat.
- Solar PV changes how you generate electricity (at home, in daylight).
- Batteries change when you use electricity.
Define your goal first
Common goals include:
- Reducing total energy cost
- Improving comfort and controllability
- Reducing exposure to tariff volatility
- Improving resilience (within what’s realistic for your setup)
Different goals point to different sequencing.
Where each technology tends to fit
Heat pumps
Best understood as a building and heating-system project:
- Fabric first matters (insulation, airtightness, emitters)
- Controls and commissioning quality matter
- Electricity tariff choice can matter once the system is operating
Solar PV
Best when you can use electricity during daylight or you have flexible loads:
- Daytime occupancy helps
- EV charging and some heat pump schedules can help
- Shading and roof constraints can dominate outcomes
Start here: Solar Panels in Ireland.
Batteries/storage
Best as an optimisation/control layer:
- Helps when you have consistent surplus PV, or a clear reason to shift energy in time
- Adds complexity; not a guaranteed “win”
Start here: Solar Batteries in Ireland.
Sequencing: a simple approach that avoids rework
- Measure your baseline (what you actually use, when). See Home Energy Monitoring.
- Address constraints (building fabric for heating; roof/shading for PV; electrical capacity for EV charging).
- Select tariffs last once you know the system behaviour. See Night Rate & Time-of-Use Electricity in Ireland.
Common questions
Should I do solar before a heat pump (or vice versa)?
It depends on your goals. If comfort and heating costs are the main driver, heat pump/fabric work may dominate. If you already have flexible electrical demand (EV charging, daytime use), PV may be compelling sooner.
Does a battery replace the need for a good tariff?
No. A battery can help shift energy, but the tariff still sets the “price landscape” you’re shifting within.
Is there a “perfect” combined system?
There are good systems and poor systems. The biggest drivers tend to be credible design, commissioning, and how well the system fits your home and lifestyle.
Related guides
- Measure before changing: Home Energy Monitoring.
- If PV is on the table: Solar and Are Solar Panels Worth It in Ireland’s Climate?.
- If EV charging is part of your plan: EV Charging.
- Browse all Guides.
Disclaimer: This guide is informational only. Heat pump and electrical system design should be done by qualified professionals. Always check manufacturer guidance and official sources for current programme details and requirements.