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Retrofit ROI Calculator

Discover the real cost and payback period of upgrading your home's energy efficiency with our SEAI grant-inclusive calculator.

Green Retrofit ROI

Net Cost after Grants
€37,500
Total Grant: €12,500
Annual Energy Savings
€2,400
Break-even: 15.6 yrs
Break-even Progress (5-yr view)32%
Today5 Years
SEAI Grant Breakdown
Heat Pump
+€6,500
Solar PV
+€2,400
Insulation
+€3,600
Total€12,500

Green Premium (G → A-Rated)

Est. Value Increase
€42,000
Net Equity Gain
€4,500
*ESRI: ~1–2% value premium per BER grade improvement
Grants via SEAI — Heat Pump, Solar PV & Insulation

Why Retrofit Your Home?

Upgrading your home's energy rating (BER) not only saves you significant money on annual heating bills but also increases your property's market value. Green homes in Ireland are increasingly commanding a premium.

SEAI Grants

The Sustainable Energy Authority of Ireland (SEAI) offers substantial grants for home energy upgrades. Our calculator automatically factors in average grant values for Heat Pumps, Solar PV panels, and primary insulation methods to give you a realistic "Net Cost."

Payback Period (ROI)

The break-even point is calculated by dividing the net cost of the retrofit by your estimated annual energy savings. For example, a retrofit costing €15,000 net, generating €2,000 in annual savings, has a 7.5 year break-even period. After this point, you are generating pure profit from your upgrade.