Precious Andrew

Data Analyst | Power BI Developer | Data Storyteller

About Me

Precious Andrew

I'm a data professional with expertise in transforming complex datasets into actionable insights. My work focuses on creating interactive visualizations and data-driven stories that help organizations make informed decisions.

With experience in Power BI, SQL, and data modeling, I specialize in developing comprehensive reports that reveal hidden patterns and trends in data. This portfolio showcases my projects across various sectors including healthcare and energy.

My Projects

NHS Healthcare Dashboard

NHS-Accidents-Emergency-Performance-Analysis

This project analyzes Accident & Emergency (A&E) performance data across the NHS in England from January 2021 to January 2025.

Healthcare Dashboard

Healthcare Performance Analysis

Comprehensive analysis of patient admissions, billing, and demographics across US hospitals.

US Electricity Dashboard

US Electricity Generation Analysis

Examination of electricity generation patterns and CO2 emissions across US states from 2001-2023.

Renewable Energy Dashboard

Renewable Energy Consumption

Analysis of US renewable energy trends from 1970 to present, by source and consumption sector.

Technical Skillset

Data Visualization

  • Power BI
  • Looker Studio
  • Excel Dashboards

Data Analysis

  • SQL
  • Advanced Excel
  • Google Sheets

Data Modeling & ETL

  • Power Query (M)
  • DAX
  • Star Schema Design
  • ETL Processes

Send me a message

Interested in collaborating or have questions about my work? Kindly reach out!