BESSizer

Design BESS Projects

up to 80% Faster

BESSizer brings battery sizing, PCS and transformer configuration, grid-connection compliance pre-checks, and technical and commercial project evaluation into one streamlined engineering workflow.

14-Day Free Trial
Starts upon Registration

Product Overview

One Workflow for
BESS Project Development

Product Overview

One Workflow for
BESS Project Development

BESSizer is a web-based engineering tool for modelling and evaluating battery energy storage systems across multiple configurations and operational use cases.

It brings key technical and commercial project tasks into one streamlined environment.

Built exclusively for the B2B market, it supports engineering teams throughout the evaluation and planning of BESS projects.

BESSizer is a web-based engineering tool for modelling and evaluating battery energy storage systems across multiple configurations and operational use cases.

It brings key technical and commercial project tasks into one streamlined environment.

Built exclusively for the B2B market, it supports engineering teams throughout the evaluation and planning of BESS projects.

Battery
Sizing

Define system capacity and battery parameters.

System
Configuration

Configure PCS and transformer requirements.

Grid
Compliance

Perform preliminary grid-connection compliance checks.

Project
Evaluation

Assess technical and commercial project performance.

Battery
Sizing

Define system capacity and battery parameters.

Grid
Compliance

Perform preliminary grid-connection compliance checks.

System
Configuration

Configure PCS and transformer requirements.

Project
Evaluation

Assess technical and commercial project performance.

Supported Configurations

Designed for Different BESS Configurations

Model and evaluate energy storage projects across a range of system architectures and operating environments.

1

Standalone BESS

1

Standalone BESS

2

PV + BESS

2

PV + BESS

3

C&I / Data Center

3

C&I / Data Center

4

Grid-Connected Microgrids

4

Grid-Connected Microgrids

5

Off-Grid Systems

5

Off-Grid Systems

1

Standalone BESS

4

Grid-Connected Microgrids

2

PV + BESS

5

Off-Grid Systems

3

C&I / Data Center

Supported VDE Standard Reqirements

Compliance Pre-Check for Valid VDE Standards

Perform preliminary grid-connection compliance checks across German VDE requirements from low voltage to the transmission grid.

LV

VDE-AR-N

4105

Low Voltage

LV

VDE-AR-N

4105

Low Voltage

MV

VDE-AR-N

4110

Medium Voltage

MV

VDE-AR-N

4110

Medium Voltage

HV

VDE-AR-N

4120

High Voltage

HV

VDE-AR-N

4120

High Voltage

EHV

VDE-AR-N

4130

Extra-High Voltage

EHV

VDE-AR-N

4130

Extra-High Voltage

LV

VDE-AR-N

4105

Low Voltage

HV

VDE-AR-N

4120

High Voltage

MV

VDE-AR-N

4110

Medium Voltage

EHV

VDE-AR-N

4130

Extra-High Voltage

Built for B2B

BESSizer is positioned exclusively for professional and commercial battery energy storage projects.

Project Developers

EPCs & Designers

BESS Installers

Commercial Customers

Business & Technical Consultants

Grid Operators & Municipal Utilities

Use Cases

Built for Real-World Energy Storage Applications

Evaluate BESS projects across a range of commercial, energy-market and grid-oriented applications based on project setup.

76

Validated Use-case Combination

Across Different System Configurations and Voltage Levels

Configuration

Voltage Levels

Combinations

Commercial & Industrial / Data Center — BTM

LV · MV

10

Grid-Connected Microgrid

LV · MV

10

Standalone

MV · HV · EHV

24

Co-location

LV · MV · HV · EHV

30

Island

Direct

2

Total Coverage

76

Configuration

Voltage Levels

Combinations

Commercial & Industrial / Data Center — BTM

LV · MV

10

Grid-Connected Microgrid

LV · MV

10

Standalone

MV · HV · EHV

24

Co-location

LV · MV · HV · EHV

30

Island

Direct

2

Total Coverage

76

Context-Aware Selection

System
Configuration

Voltage
Level

Relevant
Application

BESSizer provides the relevant application options based on the selected system configuration and voltage level.

Supported Applications

Multiple Strategies. One Workflow.

Explore the operating strategies supported across different BESS project setups.

Commercial & Industrial

01

Peak Shaving

01

Peak Shaving

02

Self-Consumption

02

Self-Consumption

03

EV Charging

03

EV Charging

04

Backup

04

Backup

01

Peak Shaving

03

EV Charging

02

Self-Consumption

04

Backup
Energy Markets

05

Energy Arbitrage

06

Day-Ahead

07

Intraday
Energy Markets

05

Energy Arbitrage

07

Intraday

06

Day-Ahead
Energy Markets

05

Energy Arbitrage

06

Day-Ahead

07

Intraday
Grid & System

08

FCR

09

aFRR

10

mFRR

11

Inertia Support

12

Island Supply
Grid & System

08

FCR

10

mFRR

12

Island Supply

09

aFRR

11

Inertia Support
Grid & System

08

FCR

09

aFRR

10

mFRR

11

Inertia Support

12

Island Supply

Features

Engineering Tools for the Complete BESS Workflow

From system configuration and sizing to degradation, economic evaluation and grid-compliance pre-checks, BESSizer brings essential BESS engineering tasks into one workflow.

01 Project Setup

System & Use-Case Configuration

Configure the foundation of your BESS project by defining system architecture, grid connection, application and operating profile.

System Configuration

Grid Connection

Primary Application

Operating Profile

Battery System Sizing

01 Project Setup

System & Use-Case Configuration

Configure the foundation of your BESS project by defining system architecture, grid connection, application and operating profile.

System Configuration

Grid Connection

Primary Application

Operating Profile

Battery System Sizing

01 Project Setup

System & Use-Case Configuration

Configure the foundation of your BESS project by defining system architecture, grid connection, application and operating profile.

System Configuration

Grid Connection

Primary Application

Operating Profile

Battery System Sizing

02 System Sizing

BESS Sizing & Technical Results

Evaluate battery, PCS, transformer and grid-connection requirements based on the configured project parameters.

Energy & Power Sizing

Battery Configuration

PCS / Inverter

Transformer Sizing

Grid Connection

CAPEX / OPEX

02 System Sizing

BESS Sizing & Technical Results

Evaluate battery, PCS, transformer and grid-connection requirements based on the configured project parameters.

Energy & Power Sizing

Battery Configuration

PCS / Inverter

Transformer Sizing

Grid Connection

CAPEX / OPEX

02 System Sizing

BESS Sizing & Technical Results

Evaluate battery, PCS, transformer and grid-connection requirements based on the configured project parameters.

Energy & Power Sizing

Battery Configuration

PCS / Inverter

Transformer Sizing

Grid Connection

CAPEX / OPEX

03 Lifetime Analysis

Lifetime & Degradation Analysis

Model system degradation across the project lifetime and evaluate its impact on capacity, power capability and end-of-life performance.

Capacity Fade

Cycle & Calendar Aging

End-of-Life Performance

Supported Chemistries:

NMC

LFP

Sodium-Ion

03 Lifetime Analysis

Lifetime & Degradation Analysis

Model system degradation across the project lifetime and evaluate its impact on capacity, power capability and end-of-life performance.

Capacity Fade

Cycle & Calendar Aging

End-of-Life Performance

Supported Chemistries:

NMC

LFP

Sodium-Ion

03 Lifetime Analysis

Lifetime & Degradation Analysis

Model system degradation across the project lifetime and evaluate its impact on capacity, power capability and end-of-life performance.

Capacity Fade

Cycle & Calendar Aging

End-of-Life Performance

Supported Chemistries:

NMC

LFP

Sodium-Ion

04 Project Economics

Technical & Commercial Evaluation

Evaluate project economics alongside technical performance using financial metrics and lifetime project projections.

NPV

IRR

Discounted Payback

Profitability Index

LCOS

Cashflow

04 Project Economics

Technical & Commercial Evaluation

Evaluate project economics alongside technical performance using financial metrics and lifetime project projections.

NPV

IRR

Discounted Payback

Profitability Index

LCOS

Cashflow

04 Project Economics

Technical & Commercial Evaluation

Evaluate project economics alongside technical performance using financial metrics and lifetime project projections.

NPV

IRR

Discounted Payback

Profitability Index

LCOS

Cashflow

05 Electrical Design

Automatic Single-Line Diagram Generation

Generate a conceptual Single-Line Diagram based on your configured BESS project and technical inputs.

System Topology

Grid Connection

PCS

Transformers

Protection

05 Electrical Design

Automatic Single-Line Diagram Generation

Generate a conceptual Single-Line Diagram based on your configured BESS project and technical inputs.

System Topology

Grid Connection

PCS

Transformers

Protection

05 Electrical Design

Automatic Single-Line Diagram Generation

Generate a conceptual Single-Line Diagram based on your configured BESS project and technical inputs.

System Topology

Grid Connection

PCS

Transformers

Protection

06 Grid Compliance

VDE Grid Compliance Pre-Check

Perform preliminary grid-connection compliance checks based on the selected voltage level and applicable German VDE requirements.

Voltage Level

Reactive Power

PCS Capability

Compliance Status

VDE-AR-N

4105

4110

4120

4130

06 Grid Compliance

VDE Grid Compliance Pre-Check

Perform preliminary grid-connection compliance checks based on the selected voltage level and applicable German VDE requirements.

Voltage Level

Reactive Power

PCS Capability

Compliance Status

VDE-AR-N

4105

4110

4120

4130

06 Grid Compliance

VDE Grid Compliance Pre-Check

Perform preliminary grid-connection compliance checks based on the selected voltage level and applicable German VDE requirements.

Voltage Level

Reactive Power

PCS Capability

Compliance Status

VDE-AR-N

4105

4110

4120

4130

Data, Reports & Collaboration

Flexible Inputs. Shareable Results.

Bring your own project data into BESSizer, work with flexible input methods, export results in standard formats, and collaborate through a cloud-based environment.

Flexible Inputs

Work with your own project data and choose the input method that fits your workflow.

Upload your own load profiles in CSV format.

Create daily load profiles directly within BESSizer.

Define project requirements using parameters instead of load profiles.

Flexible Inputs

Work with your own project data and choose the input method that fits your workflow.

Upload your own load profiles in CSV format.

Create daily load profiles directly within BESSizer.

Define project requirements using parameters instead of load profiles.

Reports & Exports

Turn simulation results into shareable outputs for further analysis and project documentation.

WORD

PDF

CSV

Reports & Exports

Turn simulation results into shareable outputs for further analysis and project documentation.

WORD

PDF

CSV

Cloud Collaboration

Store projects in the cloud and support simultaneous work across your organization according to your license.

Storage availability depends on the selected license tier.

Multiple users can work simultaneously, subject to license limits.

Options for individual users, teams and enterprise deployments.

Cloud Collaboration

Store projects in the cloud and support simultaneous work across your organization according to your license.

Storage availability depends on the selected license tier.

Multiple users can work simultaneously, subject to license limits.

Options for individual users, teams and enterprise deployments.

Available in

EN

English

DE

Deutsch

Pricing & Plans

Choose the Right Access

Start with 14 days of full-capability access, then continue with BESSizer Max or an Enterprise licence for your team.

Launch Pricing · Valid until 31 December 2026

BESSizer is available at reduced introductory rates until the end of 2026. Your rate is fixed for the full term of your licence.

Free Trial

Full BESSizer capabilities without project persistence.

14-Day

Free Trial

1 User

PDF, Word & CSV Report Exports

Word Export in Corporate Identity

PDF & PowerPoint One-Pager Exports

Full Sizing Engine

Single-line diagram

VDE Grid-Code Pre-Check

Degradation / Ageing Model

Projects cannot be saved

Most Popular

Max

Full BESSizer access for individual professional use.

€199

/user/month

1 User

Unlimited Saved Projects

PDF, Word & CSV Report Exports

PDF & PowerPoint One-Pager Exports

Monthly or Annual Billing

2 Hours of Support on Request

Everything in Trial

Enterprise

BESSizer access for companies and teams with up to 12 users.

Custom Pricing

Up to 12 Users

Admin & Member Roles

PDF, Word & CSV Report Exports

PDF & PowerPoint One-Pager Exports

Monthly or Annual Billing

2 Hours of Support on Request

Everything in Max

Monthly

Yearly

Pricing & Plans

Choose the Right Access

Start with 14 days of full-capability access, then continue with BESSizer Max or an Enterprise licence for your team.

Launch Pricing · Valid until 31 December 2026

BESSizer is available at reduced introductory rates until the end of 2026. Your rate is fixed for the full term of your licence.

Free Trial

Full BESSizer capabilities without project persistence.

14-Day

Free Trial

1 User

PDF, Word & CSV Report Exports

Word Export in Corporate Identity

PDF & PowerPoint One-Pager Exports

Full Sizing Engine

Single-line diagram

VDE Grid-Code Pre-Check

Degradation / Ageing Model

Projects cannot be saved

Most Popular

Max

Full BESSizer access for individual professional use.

€199

/user/month

1 User

Unlimited Saved Projects

PDF, Word & CSV Report Exports

PDF & PowerPoint One-Pager Exports

Monthly or Annual Billing

2 Hours of Support on Request

Everything in Trial

Enterprise

BESSizer access for companies and teams with up to 12 users.

Custom Pricing

Up to 12 Users

Admin & Member Roles

PDF, Word & CSV Report Exports

PDF & PowerPoint One-Pager Exports

Monthly or Annual Billing

2 Hours of Support on Request

Everything in Max

Monthly

Yearly

Pricing & Plans

Choose the Right Access

Start with 14 days of full-capability access, then continue with BESSizer Max or an Enterprise licence for your team.

Launch Pricing · Valid until 31 December 2026

BESSizer is available at reduced introductory rates until the end of 2026. Your rate is fixed for the full term of your licence.

Free Trial

Full BESSizer capabilities without project persistence.

14-Day

Free Trial

1 User

PDF, Word & CSV Report Exports

Word Export in Corporate Identity

PDF & PowerPoint One-Pager Exports

Full Sizing Engine

Single-line diagram

VDE Grid-Code Pre-Check

Degradation / Ageing Model

Projects cannot be saved

Most Popular

Max

Full BESSizer access for individual professional use.

€199

/user/month

1 User

Unlimited Saved Projects

PDF, Word & CSV Report Exports

PDF & PowerPoint One-Pager Exports

Monthly or Annual Billing

2 Hours of Support on Request

Everything in Trial

Enterprise

BESSizer access for companies and teams with up to 12 users.

Custom Pricing

Up to 12 Users

Admin & Member Roles

PDF, Word & CSV Report Exports

PDF & PowerPoint One-Pager Exports

Monthly or Annual Billing

2 Hours of Support on Request

Everything in Max

Monthly

Yearly

Compare BESSizer Plans

Free Trial

Max

Enterprise

Access

Trial / Term

14 days

1 month / 1 year

Upon request

Users

1

1

Up to 12

Projects & Exports

Save Projects

Unlimited

Yes

PDF Report Export

Word Report Export

CSV Report Export

Sales One-Pager — PDF

Sales One-Pager — PowerPoint

Engineering

Full Sizing Engine

Single-Line Diagram

VDE Grid-Code Pre-Check

Degradation / Ageing Model

Team

Admin Role

Member Role

Pricing

Monthly

14 days free

€199 / user

Upon request

Annual

€2,199 / user

Upon request

All prices are excluding VAT. Applicable VAT will be charged additionally.

Free Trial

Max

Enterprise

Access

Trial / Term

14 days

1 month / 1 year

Upon request

Users

1

1

Up to 12

Projects & Exports

Save Projects

Unlimited

Yes

PDF Report Export

Word Report Export

CSV Report Export

Sales One-Pager — PDF

Sales One-Pager — PowerPoint

Engineering

Full Sizing Engine

Single-Line Diagram

VDE Grid-Code Pre-Check

Degradation / Ageing Model

Team

Admin Role

Member Role

Pricing

Monthly

14 days free

€199 / user

Upon request

Annual

€2,199 / user

Upon request

All prices are excluding VAT. Applicable VAT will be charged additionally.

Free Trial

Max

Enterprise

Access

Trial / Term

14 days

1 month /
1 year

Upon
request

Users

1

1

Up to 12

Projects & Exports

Save Projects

Unlimited

Yes

PDF Report Export

Word Report Export

CSV Report Export

Sales One-Pager — PDF

Sales One-Pager — PowerPoint

Engineering

Full Sizing Engine

Single-Line Diagram

VDE Grid-Code Pre-Check

Degradation / Ageing Model

Team

Admin Role

Member Role

Pricing

Monthly

14 days
free

€199 /
user

Upon
request

Annual

€2,199 /
user

Upon
request

All prices are excluding VAT. Applicable VAT will be charged additionally.

Full Capability for 14 Days

The trial includes BESSizer's core engineering and export capabilities. The only limitation is project persistence — trial projects cannot be saved for later use.

How Paid Access Works

01
Start Free Trial

01
Start
Free Trial

Create an account and start your 14-day free trial.

02
Request a Plan

02
Request
a Plan

After your trial, contact
support@fa-battery.com
or our Contact Form
to request Max or Enterprise.

02
Request a Plan

After your trial, contact
support@fa-battery.com
or our Contact Form
to request Max or Enterprise.

03
Activation & Invoice

03
Activation &
Invoice

We activate your selected plan and send your invoice.

03
Activation & Invoice

We activate your selected plan and send your invoice.

Book a Demo

See BESSizer in Action

Get a guided introduction to BESSizer's key functions, workflows, and application possibilities — and see how it can support your BESS projects.

What to Expect

Product Overview

See the core BESSizer capabilities.

Key Workflows

Explore how BESS projects are evaluated.

Q&A

Discuss questions with our team.

Frequently Asked Questions

Find answers about BESSizer's capabilities, supported applications, technical requirements, data, licensing, and trial access.

Product Overview

What is BESSizer?

BESSizer is a web-based engineering tool for modelling and evaluating battery energy storage systems across different system configurations and operational use cases. It brings battery sizing, PCS and transformer configuration, grid-compliance pre-checks, and technical and commercial project evaluation into one integrated workflow.

Which system configurations can I simulate with BESSizer?

BESSizer supports standalone BESS, PV + BESS systems, C&I and data-center applications, grid-connected microgrids, and off-grid or islanded systems.

Use Cases

Which use cases does BESSizer support?

BESSizer supports a range of energy-storage applications, including energy arbitrage in day-ahead and intraday markets, frequency regulation, inertia support, peak shaving, self-consumption optimization, electric vehicle fleet management, and other market and grid services.

Can BESSizer model battery degradation?

Yes. BESSizer includes lifetime degradation modelling for NMC, LFP, and sodium-ion batteries, allowing degradation to be considered in system performance and economic evaluation.

Can BESSizer generate electrical diagrams?

Yes. BESSizer can automatically generate a conceptual Single-Line Diagram based on the technical inputs and configuration of the BESS project.

Technical & Regulatory

Which grid codes does BESSizer support?

BESSizer supports preliminary grid-compliance checks for German VDE requirements across different voltage levels, including VDE-AR-N 4105, 4110, 4120, and 4130.

Can requirements for other countries be added?

Yes. Additional country-specific requirements can be added in cooperation with customers.

How accurate are the simulation results?

BESSizer uses physics-based models and configurable parameters. The accuracy of the results depends on the quality and completeness of the input data. Built-in validation and plausibility checks help identify potential issues with project inputs.

What information is required to run a simulation?

Typical inputs include the system configuration, battery parameters such as capacity, C-rate and efficiency, load or generation profiles, grid-connection data, and the desired operational strategy.

Data & Operation

Can I import my own load profiles and project data?

Yes. Custom load profiles can be imported using CSV files. Users can also create a daily load profile directly in BESSizer or work with parametric inputs instead of profiles.

Which export formats are available?

BESSizer supports exporting results in Word, PDF, and CSV formats.

Which languages does BESSizer support?

BESSizer is available in English and German.

Licensing & Access

Is there a free trial?

Yes. BESSizer includes a 14-day free trial that starts when you register.

Can I book a BESSizer demo?

Yes. You can book a guided BESSizer demo and feature presentation covering the tool's key functions, workflows, and application possibilities.

What license options are available?

BESSizer uses a license-based pricing model with options for individual users, teams, and enterprise customers. Available features and usage limits depend on the selected license tier.

Can multiple users work with BESSizer?

Yes. BESSizer supports multiuser collaboration. The number of concurrent users depends on the selected license tier.

How does cloud storage work?

BESSizer provides cloud-based project storage. Available storage capacity depends on the selected license tier.

Didn't find the answer?

Frequently Asked Questions

Find answers about BESSizer's capabilities, supported applications, technical requirements, data, licensing, and trial access.

Product Overview

What is BESSizer?

BESSizer is a web-based engineering tool for modelling and evaluating battery energy storage systems across different system configurations and operational use cases. It brings battery sizing, PCS and transformer configuration, grid-compliance pre-checks, and technical and commercial project evaluation into one integrated workflow.

Which system configurations can I simulate with BESSizer?

BESSizer supports standalone BESS, PV + BESS systems, C&I and data-center applications, grid-connected microgrids, and off-grid or islanded systems.

Use Cases

Which use cases does BESSizer support?

BESSizer supports a range of energy-storage applications, including energy arbitrage in day-ahead and intraday markets, frequency regulation, inertia support, peak shaving, self-consumption optimization, electric vehicle fleet management, and other market and grid services.

Can BESSizer model battery degradation?

Yes. BESSizer includes lifetime degradation modelling for NMC, LFP, and sodium-ion batteries, allowing degradation to be considered in system performance and economic evaluation.

Can BESSizer generate electrical diagrams?

Yes. BESSizer can automatically generate a conceptual Single-Line Diagram based on the technical inputs and configuration of the BESS project.

Technical & Regulatory

Which grid codes does BESSizer support?

BESSizer supports preliminary grid-compliance checks for German VDE requirements across different voltage levels, including VDE-AR-N 4105, 4110, 4120, and 4130.

Can requirements for other countries be added?

Yes. Additional country-specific requirements can be added in cooperation with customers.

How accurate are the simulation results?

BESSizer uses physics-based models and configurable parameters. The accuracy of the results depends on the quality and completeness of the input data. Built-in validation and plausibility checks help identify potential issues with project inputs.

What information is required to run a simulation?

Typical inputs include the system configuration, battery parameters such as capacity, C-rate and efficiency, load or generation profiles, grid-connection data, and the desired operational strategy.

Data & Operation

Can I import my own load profiles and project data?

Yes. Custom load profiles can be imported using CSV files. Users can also create a daily load profile directly in BESSizer or work with parametric inputs instead of profiles.

Which export formats are available?

BESSizer supports exporting results in Word, PDF, and CSV formats.

Which languages does BESSizer support?

BESSizer is available in English and German.

Licensing & Access

Is there a free trial?

Yes. BESSizer includes a 14-day free trial that starts when you register.

Can I book a BESSizer demo?

Yes. You can book a guided BESSizer demo and feature presentation covering the tool's key functions, workflows, and application possibilities.

What license options are available?

BESSizer uses a license-based pricing model with options for individual users, teams, and enterprise customers. Available features and usage limits depend on the selected license tier.

Can multiple users work with BESSizer?

Yes. BESSizer supports multiuser collaboration. The number of concurrent users depends on the selected license tier.

How does cloud storage work?

BESSizer provides cloud-based project storage. Available storage capacity depends on the selected license tier.

Didn't find the answer?

Frequently Asked Questions

Find answers about BESSizer's capabilities, supported applications, technical requirements, data, licensing, and trial access.

Product Overview

What is BESSizer?

BESSizer is a web-based engineering tool for modelling and evaluating battery energy storage systems across different system configurations and operational use cases. It brings battery sizing, PCS and transformer configuration, grid-compliance pre-checks, and technical and commercial project evaluation into one integrated workflow.

Which system configurations can I simulate with BESSizer?

BESSizer supports standalone BESS, PV + BESS systems, C&I and data-center applications, grid-connected microgrids, and off-grid or islanded systems.

Use Cases

Which use cases does BESSizer support?

BESSizer supports a range of energy-storage applications, including energy arbitrage in day-ahead and intraday markets, frequency regulation, inertia support, peak shaving, self-consumption optimization, electric vehicle fleet management, and other market and grid services.

Can BESSizer model battery degradation?

Yes. BESSizer includes lifetime degradation modelling for NMC, LFP, and sodium-ion batteries, allowing degradation to be considered in system performance and economic evaluation.

Can BESSizer generate electrical diagrams?

Yes. BESSizer can automatically generate a conceptual Single-Line Diagram based on the technical inputs and configuration of the BESS project.

Technical & Regulatory

Which grid codes does BESSizer support?

BESSizer supports preliminary grid-compliance checks for German VDE requirements across different voltage levels, including VDE-AR-N 4105, 4110, 4120, and 4130.

Can requirements for other countries be added?

Yes. Additional country-specific requirements can be added in cooperation with customers.

How accurate are the simulation results?

BESSizer uses physics-based models and configurable parameters. The accuracy of the results depends on the quality and completeness of the input data. Built-in validation and plausibility checks help identify potential issues with project inputs.

What information is required to run a simulation?

Typical inputs include the system configuration, battery parameters such as capacity, C-rate and efficiency, load or generation profiles, grid-connection data, and the desired operational strategy.

Data & Operation

Can I import my own load profiles and project data?

Yes. Custom load profiles can be imported using CSV files. Users can also create a daily load profile directly in BESSizer or work with parametric inputs instead of profiles.

Which export formats are available?

BESSizer supports exporting results in Word, PDF, and CSV formats.

Which languages does BESSizer support?

BESSizer is available in English and German.

Licensing & Access

Is there a free trial?

Yes. BESSizer includes a 14-day free trial that starts when you register.

Can I book a BESSizer demo?

Yes. You can book a guided BESSizer demo and feature presentation covering the tool's key functions, workflows, and application possibilities.

What license options are available?

BESSizer uses a license-based pricing model with options for individual users, teams, and enterprise customers. Available features and usage limits depend on the selected license tier.

Can multiple users work with BESSizer?

Yes. BESSizer supports multiuser collaboration. The number of concurrent users depends on the selected license tier.

How does cloud storage work?

BESSizer provides cloud-based project storage. Available storage capacity depends on the selected license tier.

Didn't find the answer?

Ready to Get Started?

Whether you need expert engineering support or powerful battery software, we're here to help you take the next step.