PowerPredict: AI-Powered Smart Electricity Bill Prediction App

Inspiration

Many households struggle with unpredictable electricity bills and lack visibility into what drives their energy costs. As students, we wanted to understand how our daily lifestyle choices affected our energy bills. This inspired us to create PowerPredict — an app that empowers users to predict their future electricity bills, understand their energy consumption patterns, and get AI-powered recommendations to reduce costs.

What We Learned

Throughout this project, we gained valuable insights into:

  • Energy Economics: Understanding regional rates, time-of-use pricing, and seasonal adjustments.
  • AI Integration: Implementing Google's Gemini API for intelligent recommendations and conversational assistance.
  • Full-Stack Development: Building a scalable application with a React frontend and Node.js backend.
  • TypeScript Mastery: Developing safely and efficiently across the entire stack.
  • Modern React Patterns: Advanced state management using hooks and context.
  • Responsive Design: Building pixel-perfect UI with Tailwind CSS.
  • Energy Efficiency Research: Studying real-world consumption patterns and how small changes can lead to savings.

How We Built It

Frontend Architecture

  • React 18 + TypeScript: Type-safe, scalable, and efficient.
  • Tailwind CSS: Clean, responsive UI with glass morphism effects.
  • Component-Based Design: Modular and maintainable structure.
  • Advanced State Management: Seamless synchronization across features using hooks and context.

Backend & API Integration

  • Node.js: Efficient backend operations.
  • Gemini API Integration: Powers:
    • AI-driven energy-saving recommendations
    • Conversational chatbot
    • Personalized energy tips
    • Smart appliance usage optimizations

Core Features

  • Smart Appliance Database: Realistic power consumption data.
  • Advanced Billing Engine: Accurate calculations based on seasonal factors, regional slabs, and user patterns.
  • AI-Powered Insights: Context-aware energy-saving tips via Gemini API.
  • Interactive Chatbot: Real-time user assistance.
  • Real-Time Analytics: Instant electricity bill calculations with detailed breakdowns.
  • Time-of-Use Pricing: Peak-hour and off-peak rate calculations.
  • Bill Analytics Dashboard: Interactive visualizations to track costs and energy trends.

Key Features

Bill Analytics Dashboard

  • Cost Trend Over Time: Visualizes monthly cost fluctuations.
  • Energy Usage Trend: Tracks variations in monthly energy consumption.
  • Cost vs Usage Correlation: Compares monthly usage with respective costs.
  • Category-Wise Breakdown: Displays which categories contribute most to the bill (e.g., heating, kitchen, electronics).

Time-of-Use Pricing Feature

  • Enable/Disable Option: Users can apply peak-hour rates.
  • Real-Time Calculation: Adjusts predictions based on selected pricing model.

AI-Powered Features

  • AI chatbot (via Gemini API) answers energy-related questions.
  • Personalized recommendations for reducing bills.
  • Context-aware energy-saving tips based on appliance mix.
  • Natural language support for intuitive user interaction.

Advanced Settings

  • Regional pricing support.
  • Seasonal adjustments based on location.
  • Home energy efficiency factor customization.

Challenges We Faced

Technical Challenges

  • Gemini API Integration: Managing response times and API rate limits.
  • TypeScript Across Stack: Ensuring consistency and safety from frontend to backend.
  • Real-Time AI Responses: Optimizing conversational chatbot speed.
  • State Management: Complex synchronization of appliances, AI insights, and user data.

Development Challenges

  • API Rate Management: Implementing caching to manage Gemini API quotas.
  • Cross-Platform Consistency: Ensuring seamless experiences across devices.
  • Performance vs Features: Balancing advanced AI features with quick load times.
  • UX Design: Making AI insights intuitive and user-friendly.

Tech Stack

Frontend

  • React 18
  • TypeScript
  • JSX/TSX
  • Tailwind CSS
  • Lucide React Icons

Backend & APIs

  • Node.js
  • Google Gemini API
  • RESTful API Design

Development Tools

  • Vite
  • ESLint
  • TypeScript Compiler

Deployment


Final Thoughts

PowerPredict combines the power of AI with smart analytics to make energy management simple and effective for everyday users. We are proud of:

  • Seamless Gemini API integration.
  • Accurate, real-time bill predictions.
  • AI-powered energy-saving recommendations.
  • Interactive dashboards that make complex data easy to understand.

This project taught us how to develop a full-stack AI application from scratch while ensuring an intuitive user experience and maintaining high performance.


Getting Started

Clone the repository

git clone

Install dependencies

npm install

Set up environment variables for Gemini API

cp .env.example .env

Add your Gemini API key to the .env file

Start the development server

npm run dev

Build for production

npm run build

Start the backend server (deployed through Render)

node index.js

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