🧮 Free Irish Energy Tools — Updated 2026

Calculate your real energy costs

Scroll down to find your calculator — EV charging, home solar, business solar, fleet grants and more. All built on live Irish rates and SEAI grant values.

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Example result

EV Home Charging — Annual Cost

VehicleVW ID.4 Pro (77 kWh)

Annual mileage15,000 km

Electricity tariffEV Boost Rate (€0.0884/kWh)

Charger7kW Home Wallbox

Annual home charging cost €994

vs €2,092/yr equivalent diesel fuel

Annual saving vs diesel €1,035

⚡ Covers all 7 Irish charging networks & all 205 Irish-market EVs

EV Charging Calculators

How much does charging your EV actually cost?

Home night rates, ESB e-car, IONITY, EZO, EasyGo — the Irish EV charging landscape has never been more complex. Our four EV calculators cut through the noise, giving you exact costs for your vehicle, your tariff, your driving pattern.

Home charging — compare day rate, night rate, EV-specific tariffs across all Irish energy suppliers. See real annual savings over petrol and diesel.
Public networks — model costs across ESB, EZO, IONITY, EasyGo, ePower and more. Cost per session, per 100 km and per month.
Network memberships — is ESB Advantage, Ionity Passport or PAYG cheaper for your annual mileage? Know before you subscribe.
Real-world Irish range — adjust for winter temperatures, motorway driving and load across all 205 Irish-market EVs.

🏠Home Charging ⚡Public Networks 💳Memberships 📏Real Range

Example result

Home Solar & Heat Pump — System Cost

Solar system10 × 430W panels = 4.3 kWp

BatteryPylontech US3000 7.4 kWh

Heat pumpSamsung EHS Gen6 8 kW

SEAI grantsApplied automatically

Net cost after SEAI grants €18,450

Grants applied: €1,800 solar + €6,500 heat pump + €800 battery

Estimated annual energy saving €1,240

☀️ Models all current SEAI residential and commercial solar grant schemes

Solar & Home Energy Calculators

Is solar worth it for your home or business?

With SEAI grants, falling panel costs and rising electricity prices, solar has become genuinely compelling for Irish homes and businesses. But the maths is complex. Our solar calculators do it for you.

Home solar & heat pump — model a full system with SEAI residential grants auto-applied. Choose from 13 panels, 15 inverters, 15 batteries and 12 heat pumps.
Business solar (10–100 kWp) — VAT reclaim (23% hardware, 13.5% install), ACA year-1 tax write-off and SEAI Non-Domestic Microgen grant, all calculated together.
See payback period, 10-year and 20-year ROI, all modelled on actual Irish irradiance data for your system size.

☀️Home Solar & Heat Pump 🏢Business Solar

Example result

Fleet EV Grant Calculator — Single Vehicle

VehicleFord eTransit 350L van

CategoryN1 Van ≤ 2,500 kg

List price€52,395

SEAI grant− €7,600

VRT reliefExempt (van)

📊 Fleet model: multiply per-vehicle grants across your entire fleet

Fleet & Business Calculators

How much can your business claim back?

Irish businesses switching to EVs and solar face a complex mix of grants, tax reliefs and running cost changes. Our business calculators model everything in one place.

Fleet EV grant calculator — SEAI grants across all 205 Irish-market EVs. Cars, vans, minibuses, buses and heavy trucks. See net cost per vehicle and total fleet saving.
Business solar calculator — VAT reclaim (23% hardware, 13.5% install), ACA accelerated capital allowance and SEAI Non-Domestic Microgen grant calculated together. For SMEs, farms, schools and enterprise.
Model the full transition cost — combine grant savings, fuel savings and solar ROI for a complete business case.

🚛Fleet Grant Calculator 🏭Business Solar Calculator

Calculate your real energy costs

How much does charging your EV actually cost?

Is solar worth it for your home or business?

How much can your business claim back?

Now find the right product