New App: Tibber Price Forecast

apps/tibberprice/README.md

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+# Tibber Price Forecast
+
+![Tibber Price Forecast](screenshot.png)
+
+Display real-time electricity price forecast and consumption intelligence from [Tibber](https://tibber.com/) on your Tidbyt.
+
+## Features
+
+- 📊 **30-Minute Granularity**: 60 half-hourly bars showing prices from midnight today through tomorrow morning
+- 🎨 **Gradient Price Coloring**: Smooth color transitions from green (cheap) to red (expensive) matching the Tibber mobile app
+- 💡 **Consumption Intelligence**: Smart efficiency color coding shows when you're using power wisely
+- 🔄 **Smart Caching**: Reliable display with automatic fallback if API is temporarily unavailable
+
+## Configuration
+
+### Step 1: Get Your Tibber API Token
+
+1. Visit [Tibber Developer Portal](https://developer.tibber.com/)
+2. Log in with your Tibber account
+3. Generate a personal access token (it's free!)
+4. Copy the token - you'll need it in Step 3
+
+### Step 2: Install the App
+
+1. Open the Tidbyt mobile app on your phone
+2. Tap **+** to add a new app
+3. Search for "Tibber Price Forecast"
+4. Tap to install
+
+### Step 3: Configure Your Token
+
+1. When prompted, paste your Tibber API token
+2. The app will automatically load your electricity data
+3. Your Tidbyt will start displaying your price forecast!
+
+## What You'll See
+
+### Upper Chart: Price Forecast
+Shows electricity prices for the next 30 hours with gradient coloring:
+- 🟢 **Green**: Cheapest prices (0-30th percentile)
+- 🟡 **Yellow**: Average prices (30-70th percentile)  
+- 🔴 **Red**: Most expensive prices (70-100th percentile)
+
+The gradient smoothly transitions through the spectrum, with bright contour lines highlighting price peaks for easy identification.
+
+### Lower Chart: Consumption (Past Hours Only)
+Shows your actual electricity usage with intelligent efficiency coloring:
+- 🟢 **Green**: Excellent - Low usage or usage during cheap prices
+- 🟡 **Yellow**: Moderate efficiency
+- 🔴 **Red**: Consider shifting - High usage during expensive prices
+
+Future hours show gray bars since consumption data isn't available yet.
+
+## Requirements
+
+- Active Tibber subscription
+- Tibber API token (free from [developer.tibber.com](https://developer.tibber.com/))
+- Tidbyt device
+
+## Supported Countries
+
+This app works with Tibber in:
+- 🇳🇴 Norway
+- 🇸🇪 Sweden
+- 🇩🇪 Germany
+- 🇳🇱 Netherlands
+
+## Technical Details
+
+- Updates hourly with smart caching
+- Uses Tibber's quarter-hourly price API for precise 30-minute intervals
+- Consumption data split from hourly to 30-minute slots
+- Handles PV systems and grid export (negative consumption)
+- Graceful fallback with stale data indicator if API is unavailable
+
+## About
+
+Created by [cruschke](https://github.com/cruschke)
+
+**Links:**
+- [Source Code](https://github.com/cruschke/tidbyt-tibber)
+- [Developer Documentation](https://github.com/cruschke/tidbyt-tibber/blob/main/README.dev.md)
+- [Tibber](https://tibber.com/)
+- [Tibber Developer Portal](https://developer.tibber.com/)
+
+## License
+
+Apache-2.0 License - Free to use and modify
+
+---
+
+**Tip**: The app works great for timing energy-intensive tasks like EV charging, washing machines, or dishwashers to run during cheap price periods!

apps/tibberprice/manifest.yaml

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+---
+id: tibberprice
+name: Tibber Price
+author: cruschke
+summary: Tibber price forecast
+desc: Electricity price forecast for Tibber customers, designed to match the look and feel of the official Tibber mobile app. See when power is cheap and save money!