Auto BESS Sizing Pro

Auto BESS Sizing Pro is a professional engineering tool for preliminary Battery Energy Storage System sizing, energy-profile analysis, tariff evaluation and technical reporting.

Designed for engineers, consultants, contractors, facility owners and energy professionals, the app helps convert electrical load data into clear BESS recommendations with transparent calculations, assumptions and engineering checks.

KEY FEATURES

• Import Excel or CSV load-profile data

• Analyse daily and interval energy consumption

• Size BESS power in kW and energy capacity in kWh

• Evaluate usable capacity, depth of discharge and state of charge

• Account for system losses, efficiency and derating

• Review charge and discharge C-rate requirements

• Estimate recharge duration and available charging power

• Assess inverter and apparent-power requirements

• Compare multiple BESS sizing scenarios

• Analyse tariff, peak-demand and time-of-use savings

• Review estimated energy and demand-charge reductions

• Identify missing or incomplete load-profile data

• Generate calculation summaries and engineering reports

• Export project results for review and documentation

ENGINEERING-FOCUSED WORKFLOW

The app presents key assumptions, calculation inputs, intermediate values and final recommendations in a structured workflow. This makes the sizing process easier to understand, review and repeat.

Users can assess:

• Peak electrical demand

• Daily energy consumption

• Required discharge duration

• Battery-side and AC-side power

• Depth of discharge

• Round-trip efficiency

• System derating

• Battery degradation and lifecycle assumptions

• Inverter capacity

• Charging requirements

• Tariff savings and financial indicators

LOAD-PROFILE ANALYSIS

Import interval consumption data and review demand patterns, daily energy usage, peak periods and data quality. Where information is incomplete, the app can provide controlled estimation and confidence indicators based on the available dataset.

TARIFF ANALYSIS

Compare supported tariff profiles, time-of-use periods, peak and off-peak rates, demand charges and estimated savings. Custom tariff assumptions can also be reviewed for project-specific studies.

SCENARIO COMPARISON

Compare alternative battery capacities, discharge durations, operating limits and tariff strategies before selecting a preferred design basis.

PROFESSIONAL REPORTING

Generate clear project summaries containing:

• Project information

• Design assumptions

• Load-profile findings

• Recommended BESS capacity

• Inverter and charging requirements

• Energy and demand analysis

• Scenario results

• Warnings, limitations and verification items

SUITABLE FOR

• Commercial and industrial facilities

• Solar PV and BESS projects

• Peak-demand management

• Energy arbitrage studies

• Backup-energy assessments

• Preliminary feasibility studies

• Engineering proposals and technical evaluations

IMPORTANT ENGINEERING NOTICE

Auto BESS Sizing Pro is an engineering decision-support tool. Results depend on the accuracy of the imported data and user-defined assumptions.

All final designs must be independently verified against project requirements, utility rules, applicable standards, equipment manufacturer data, protection requirements, fire-safety provisions and local authority requirements.

Final equipment selection, detailed engineering and installation must be completed or reviewed by appropriately qualified professionals.