Home Battery Savings Calculator

Configuration

1. Upload HDF File

ESB Harmonised Data File (CSV)

Important: On the ESB website, please download the file with "30-minute readings in calculated kWh".

For security, you can delete the MPRN and Serial Number columns.

1.5. Solar PV Generation Data

Use data from HDF file

Uses the solar generation (Active Export) data found in your uploaded HDF file.

Simulate New PV System

Ignores generation data in your HDF and simulates a new solar PV system. Your HDF's consumption data is still used.

2. System Technical Details

Battery Capacity (kWh)

Usable Capacity (%)

Charge/Discharge (kW)

Efficiency (%)

Max Import (kW)

Max Export (kW)

Min SoC (%)

Max SoC (%)

3. Simulation Selection

Self-Consumption

Export Maximiser

Charges the battery from the grid during designated cheap-rate hours. It will attempt to 'force discharge' by exporting to the grid right before the cheap window starts to make space.

Balanced Export Maximiser

Import Minimiser

4. Financials

Ensure all costs and unit prices include VAT.

Note: Default rates are pre-set to the Pinergy EV tariff for demonstration.

Total System Cost (€)

Import Tariff

Flat Rate Hourly

Export Tariff

Flat Rate Hourly

"Before" Scenario Summary

"After" Scenario Annual Summary

Metric	Self-Consumption	Export Maximiser	Balanced Export Maximiser	Import Minimiser

Select a strategy in the configuration panel to view its detailed daily performance below.

Download HDF for Full Financial Analysis

Please Note: Our "Annual Savings" figures are based *only* on unit rates for a quick comparison. They do not include standing charges, PSO levies, or other fees.

For a complete financial analysis that includes all charges, please use the generated HDF files on a dedicated comparison site.

Privacy: The HDF files you download are anonymous and use a generic MPRN/Meter ID, not your real ones.

Upload your simulated HDF to a comparison site like: www.energypal.ie

Total Monthly Consumption (Last 12 Months)

Daily Analysis

Select Month

Select Day

Energy Flow for

Summary for

Ready to Analyze Your Energy Future?

Upload your data and configure your system on the left to get started.