Batteryinstallation.ie
Smart Tools

Plan with confidence. Get the right battery, the right size, for the right reason.

Our free battery tools are built around real Irish homes and businesses.
Run the numbers, check compatibility, estimate savings or diagnose issues before you spend a cent.

100% Free to use

No sign up. No pressure.

Built for Irish homes

Tariffs, grants and reality.

Independent advice

We're not tied to one brand.

All 8 Tools

Each tool is standalone, but they work even better together.

Your results are passed between tools

Finish one tool and the next one opens with your info already filled in.

Battery Sizing Calculator

Find the right battery size for your home based on your usage, tariff and solar generation.
24-hour analysis

24-hour analysis

Compatibility Checker

Check which batteries work with your existing inverter and system configuration
16 inverter brands

AC & hybrid options

Expansion Checker

See if you can add more capacity to your current battery and what your options are.
15 battery platforms

Stack & module limits

Quote Calculator

Get itemised indicative pricing across retrofit, expansion, battery-only and backup add-on.
Real pricing

Multiple scenarios

Night-Rate Savings

Calculate how much you could save using night-rate charging and arbitrage tariffs.
Tariff arbitrage

Annual savings

Backup Runtime

See how long your battery will keep your home running during a power cut or outage.
16 circuits

Real runtime

Fault Triage Wizard

Answer a few questions about a problem and get likely causes and next steps.
9 common issues

Fix guidance

Peak Shaving Estimator

Upload your half-hourly data to identify peak demand and battery savings potential.
Half-hourly HDF

MIC headroom

Not sure where to start?

Start with the Compatibility Checker to see what’s possible with your system, then size your battery and estimate savings.
1. Check Compatibility

See what works with your existing system.

2. Size Your Battery

Find the right capacity for your needs.

3. Calculate Savings

See how much you could save each year.

4. Get Your Quote

Get pricing for your recommended system.