ABOUT THIS WEBSITE

Practical Engineering, Clearly Explained.

Electrical Engineering is an independent educational resource created to make electrical engineering, calculations, power systems, and solar PV concepts easier to understand and apply in practice.

Prasun Barua

I am a Senior Electrical Engineer with more than 18 years of professional experience in electrical engineering, renewable energy, and solar photovoltaic projects.

My professional work has included electrical design, engineering calculations, equipment selection, testing and commissioning, as well as the development and implementation of grid-connected solar PV projects.

I created this website to share some of the engineering knowledge, practical methods, and lessons that are useful to students, engineers, technicians, and anyone interested in understanding how electrical systems work.

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Engineering Should Be Easier to Understand

Electrical engineering can look complicated when it is presented only through formulas, symbols, and theoretical definitions. The purpose of this website is to bridge that gap between theory and practical understanding.

Build Strong Fundamentals

Start with the principles that form the foundation of electrical engineering, including voltage, current, resistance, power, energy, AC, DC, and electrical circuits.

Learn Through Calculations

Understand how engineering formulas are used through practical examples, assumptions, calculations, and explanations rather than simply receiving a final answer.

Connect Theory With Practice

Explore how electrical engineering concepts are applied to power systems, equipment, electrical design, renewable energy, and real-world projects.

Experience Behind the Content

The website is informed by professional experience in electrical engineering and renewable energy projects. The intention is not simply to present textbook definitions, but to explain concepts in a way that connects engineering theory with practical work.

  • Renewable energy and solar PV projects
  • Electrical system design and engineering
  • Electrical calculations and equipment selection
  • Testing, commissioning, and troubleshooting
  • Power systems and electrical infrastructure
  • Technical documentation and engineering analysis
Explore Solar PV
INVERTER

Understand. Calculate. Apply.

Good engineering learning should go beyond memorising formulas. Each subject should help the reader understand what is happening, how to calculate it, and where the result is useful.

Understand the Principle

Begin with the physical meaning of the concept, the important terminology, and the engineering principle behind it.

Work Through the Numbers

Apply appropriate formulas, assumptions, and units through clear worked examples so the calculation can be followed and checked.

Connect It to Practice

Consider how the result relates to actual equipment, electrical systems, design decisions, and project requirements.

Built for Curious Learners and Practitioners

The content is designed for people at different stages of their engineering journey.

Students

A practical supplementary resource for students who want to connect classroom theory with engineering examples and calculations.

Engineers & Technicians

A convenient reference for reviewing concepts, checking basic calculations, and exploring practical engineering topics.

Renewable Energy Community

A resource for people interested in solar PV, renewable energy systems, and the electrical engineering behind them.

Useful, Practical and Transparent

I aim to keep the material on this website practical and understandable while being transparent about its limitations.

  • Explain concepts in straightforward language
  • Show the reasoning behind important calculations
  • Use practical engineering examples where appropriate
  • Update content when corrections or improvements are identified
  • Clearly distinguish educational information from project-specific professional advice
PRACTICAL

Educational Resource, Not Project Approval

The information on this website is provided for general educational and informational purposes. Engineering decisions for actual projects should be based on applicable standards, local regulations, project specifications, manufacturer documentation, site conditions, and appropriate professional engineering review.

Calculators and examples published here are intended to support learning and preliminary analysis. They should not be treated as a substitute for detailed project engineering, inspection, testing, or professional approval.

Read the full disclaimer

Have a Question or Suggestion?

If you notice an error, have a technical question, want to suggest a topic, or simply want to share feedback, you are welcome to get in touch.

Contact Prasun Barua