Power BI

What is Power BI? Everything you need to know

Discover what Microsoft Power BI is, how it works, what it costs, and why it's the world's most popular BI tool. Complete guide for beginners and professionals.

Last updated: 2026-03-08

What is Power BI?

Power BI is a business intelligence platform by Microsoft that lets you collect, transform, visualize, and share data. It's designed so that everyone — from data analysts to managers — can gain insights from business data without programming.

With Power BI, you create interactive dashboards and reports that automatically update when your data changes. You can connect to hundreds of data sources: Excel files, SQL databases, cloud services like Salesforce, Google Analytics, and many more.

Since its launch in 2015, Power BI has grown into the market leader in business intelligence. According to Gartner, Microsoft has been in the top position in the Magic Quadrant for Analytics and Business Intelligence Platforms for years.

Power BI components

Power BI consists of multiple components that work together:

What can you do with it?

Power BI is used across virtually every industry:

Power BI vs. Excel — when to switch?

Many professionals start with Excel for reporting. That works fine for small datasets. But there comes a point where Excel falls short:

CriterionExcelPower BI
Data volumeUp to ~1 million rowsMillions to billions of rows
Auto refreshManual or VBAAutomatic (scheduled)
Team sharingEmail or SharePointOne-click publish
InteractivityLimited (slicers)Fully interactive
Row-level securityNot standardBuilt-in (RLS)
CostPart of Microsoft 365Desktop free, Service from €9.40/mo

Licensing and costs

Power BI offers several license types:

For more details, see our comprehensive licensing guide.

How to get started

Getting started with Power BI is free and simple:

  1. Download Power BI Desktop — Free via the Microsoft Store or powerbi.microsoft.com
  2. Connect your first data source — Start with an Excel file or CSV you already have
  3. Create your first visualization — Drag fields onto the canvas and pick a chart type
  4. Publish to the Service — Create a free account at app.powerbi.com
  5. Share with your team — Sharing requires a Pro license (60-day free trial available)

Frequently asked questions

Is Power BI free?
Power BI Desktop is completely free. To share reports online you need a Pro license (€9.40/month), but there's a free 60-day trial.
Do I need a powerful computer for Power BI?
For small to medium datasets, any modern laptop will do. For large models (100M+ rows), more RAM (16GB+) helps. Power BI Desktop only runs on Windows.
Can I use Power BI on Mac?
Power BI Desktop is Windows-only. On Mac, you can use the Power BI Service via browser, or run Desktop via Parallels/VMware.
What's the difference between Power BI and Microsoft Fabric?
Power BI is the visualization and reporting component. Fabric is the broader data platform that includes Power BI, plus data engineering, data science, real-time analytics, and data activator.
Can I connect Power BI to my existing systems?
Yes, Power BI supports hundreds of connectors: SQL Server, Oracle, SAP, Salesforce, Google Analytics, REST APIs, Excel, CSV, SharePoint, and many more.

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