Independent, plain-English guides to solar panels, heat pumps, insulation and the SEAI grants that help fund them — with practical checklists and calculations you can adapt to your home.
Amounts vary by home type and change after the Budget — always confirm with SEAI before you apply.
Practical tools
No sign-up, installer referrals or supplier ranking. Your entries stay on the page.
Check the payback
Change the quote, export rate and self-use. See what actually changes your result.
OpenCompare a whole year
Include standing charges and find how much usage needs to move off-peak.
OpenBefore you commit
A printable checklist for scope, exclusions, grant assumptions and warranties.
OpenBrowse by topic
From the roof to the meter — pick where you are and go deep.
Costs, grants and payback for solar PV in Ireland.
Attic, walls, retrofit and the grants that pay for them.
Explore Insulation & Retrofit
Play with the numbers
An attractive quote can hide a lot of assumptions. Self-use matters because electricity you use avoids an import price, while exported units usually earn less.
Simple payback
11.0 years
Net cost after grant
€7,200
Benefit per year
€656
Excludes financing, panel degradation, inverter replacement and tariff changes.
Freshly updated
Explore the options, then check current conditions with the official source.
Latest Fuel Allowance pays €38 a week for 28 weeks from 28 September 2026. See who qualifies, how to apply, why you can't backdate a claim, and how to use it well.
Updated 13 October 2026
Updated 13 October 2026
Updated 12 October 2026
Updated 12 October 2026
Updated 9 October 2026
Building Energy Rating
A and B are very good; C is decent; D is common in older homes; E–G are poor. Since 24 May 2026 new certificates use a simplified A0–G scale; older certificates like the bands below stay valid for 10 years. Hover or tap a band.
Bands on certificates issued before 24 May 2026, in kWh per m² per year. Newer certificates use the simplified A0–G scale.
Energy use
101–125 kWh/m²/yr
B on the new scale
Efficient. The target for most upgrades; comfortable and cheap to run.
The letter reflects the building — insulation, heating, windows and ventilation — not how you live in it.
The SEAI process
Most grants require your home to have been built and occupied before a set year, and a valid BER assessment.
You apply to SEAI and get approval first. Starting works before approval usually means you lose the grant.
Use a registered contractor, complete a post-works BER where required, and SEAI pays the grant.
32
in-depth guides
each with linked sources
6
topics
from solar to BER
2
calculators
formulas on show
0
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