Calculators and tools
Run the numbers on your home
A quick tool for the saving we'd expect from solar, and the SEAI grant on your panels.
Every figure here is modelled from a remote assessment. How we calculate this · Solar in plain English
What would you save?
Enter your details below and we'll show you the saving we'd expect. How we calculate this
€200/ month
€50€500
An EV can run on the electricity your roof made.
The monthly saving we'd expect
€92
per month
Annual saving we'd expect
€1,103
10-year saving we'd expect
€11,025
6.2
years
We'd expect it to pay for itself in 6.2 years
Then the system keeps producing electricity you don't have to buy.
Cost & SEAI grant
SEAI grant on the panels: €1,700
The SEAI grant is on the panels only, up to €1,800, tiered by the size of the system. It does not cover the battery. How we calculate this
System cost
€8,500
After grant
€6,800
These figures are modelled from a remote assessment. Your quote confirms the exact system for your own roof.
How we calculate this
- • Electricity price: 35c a unit. The saving is modelled as a share of your bill, plus 15 percentage points if you charge an EV.
- • Generation cap: the saving never exceeds what your panels make, taken as 900 kWh per kWp of panels a year, a typical Irish yield.
- • SEAI grant: on the panels only, €700 per kWp to 2 kWp, €200 per kWp from 2 to 4 kWp, capped at €1,800.
- • CO₂: the electricity you no longer buy × 0.198 kg of CO₂ a unit, the SEAI electricity conversion factor.
- Every figure here is modelled, not a promise. Read the full assumptions on How we calculate this
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