How Irish Homeowners Are Combining Heat Pumps and Solar PV to Cut Heating Costs Year-Round

Heat Pumps for Irish Homes — Why Pairing with Solar Delivers the Biggest Savings

Heating is one of the largest single costs in any Irish household, and with oil and gas prices remaining high and volatile, more homeowners are switching to heat pumps as a cleaner, more efficient alternative. On their own, heat pumps already reduce running costs compared to traditional heating systems. But for homeowners who pair a heat pump with solar PV, the savings go a step further, since a heat pump run on free solar electricity during the day can heat a home, and its hot water, at a fraction of the usual cost.

Why Heat Pumps and Solar Work So Well Together

A heat pump uses electricity to extract and concentrate heat from the outside air, delivering several units of heat for every unit of electricity it consumes. This makes it far more efficient than a gas or oil boiler, but it still relies on electricity to run — and that is exactly where solar comes in.

Homes with solar PV generate electricity throughout the day, often more than the household uses in real time. Without a heat pump or battery, that surplus is typically exported to the grid at a low rate. With a heat pump in the system, daytime solar generation can instead heat the home directly or top up a hot water cylinder, storing that free energy as heat rather than losing the value of it. For many households, this turns daytime solar generation, which would otherwise go largely unused, into a genuinely useful source of home heating.

"We switched to a heat pump and had solar installed by EnergieXPro at the same time. Our heating bills have dropped noticeably, and on sunny days the immersion barely touches the grid at all." — Homeowner, County Galway

What EnergieXPro Delivers for Homeowners

• Free home energy assessment covering insulation, heating needs and solar suitability

• Heat pump system design and installation matched to your home's size and heat loss profile

• Solar PV system design that accounts for daytime heating and hot water demand, not just general household use

• Guidance on the SEAI Solar Electricity Grant, worth up to €1,800 for qualifying homes in 2026

• Guidance on separate SEAI heat pump grants, which can significantly reduce the cost of switching from oil or gas

• Smart controls that prioritise using solar generation for heating and hot water before drawing from the grid

• Ongoing maintenance and support for both your heat pump and solar system

Grants Make the Switch More Affordable Than It Looks

Both technologies are supported by separate SEAI grant schemes, and applying for both at the same time can significantly reduce the overall cost of a combined installation. The SEAI Solar Electricity Grant remains available at up to €1,800 for domestic systems in 2026, while heat pump grants can cover a substantial portion of the switch away from oil or gas heating. Taken together, these supports mean that upgrading both your heating and your electricity generation at the same time is often more cost-effective than doing them separately at different points in time.

A Long-Term Investment in Comfort and Costs

A heat pump paired with solar is not just about lower bills, it is a long-term upgrade to how a home is heated and powered. Once installed, homeowners benefit from lower running costs for decades, a warmer, more consistent home, and far less exposure to the price swings of oil and gas markets.

Thinking about switching to a heat pump, adding solar, or both together? Contact EnergieXPro today for a free home energy assessment and find out what your household could be saving.