Domestic Solar Calculator

    Calculate Your Energy Savings and Independence

    See exactly how much you can save with solar panels, battery storage, and the SEAI grant. Personalised for your home.

    Your Home Details

    6 kWp

    15 panels

    2 kWp (Small)12 kWp (Large)
    €150
    €50€400
    3

    Add-ons

    Store excess for evening use

    SEAI Grant

    €1,800

    Government grant

    Your Cost

    €6,000

    After grant

    Annual Savings

    €1,355

    75% bill cut

    Payback

    4.4 yrs

    Break-even

    Cost Breakdown

    Solar Panels€7,800
    Gross Total€7,800
    SEAI Grant-€1,800
    Your Final Cost€6,000

    SEAI Grant Calculation

    First 2 kWp × €900€1800
    2.0 kWp × €300€600
    Total Grant€1,800

    Maximum grant of €1,800 reached

    Your Energy Production

    5,400

    kWh generated/year

    40%

    Self-consumed

    1620

    kg CO₂ saved/year

    2,160 kWh will power your home directly, while 3,240 kWh will be exported to the grid earning you €599 per year.

    25-Year Savings Projection

    Assuming 4% annual electricity price increase

    Total Lifetime Savings

    €46,469

    Yr 1Yr 3Yr 5Yr 7Yr 9Yr 11Yr 13Yr 15Yr 17Yr 19Yr 21Yr 23Yr 25€0k€15k€30k€45k€60k

    Ready to Start Saving?

    Get a free home assessment and personalised quote from our SEAI-approved experts.

    Frequently Asked Questions

    SEAI Grant Eligibility

    • Home must be built before 2021
    • Must use SEAI-registered installer
    • BER assessment required after install
    • Grant paid after completion

    Battery Benefits

    • Store excess daytime energy
    • Use solar power in evenings
    • Reduce grid dependency
    • Backup power during outages

    What Affects Savings?

    • Roof orientation (south is best)
    • Daytime electricity usage
    • System size vs consumption
    • Battery storage capacity

    Installation Process

    • Free home assessment
    • Custom system design
    • 1-2 day installation
    • Grid connection & testing