FR: Energy Dashboard hour-by-hour breakdowns.

[andreamoretto]

I’d like to propose a native Energy Dashboard feature that provides hour-by-hour breakdowns of energy consumption across all sources and devices reporting energy measurements, with drill-down capabilities, historical comparisons aimed at fostering energy efficiency, sustainability, and green energy optimization.

This feature will empower users to:

• Track energy usage by hour of day over weeks, months, or custom timeframes.
• Analyze device-specific consumption to pinpoint inefficiencies.
• Correlate energy production and consumption, especially for users with solar PV and battery storage.
• Support energy-saving decisions and energy cost optimizations with clear, interactive data visualizations.

In today’s world, where energy conservation and sustainability are no longer optional, a feature like this can help users:

• Understand when and where energy is consumed most, enabling smarter decisions about when to run appliances or adjust automations.
• Maximize the use of self-generated renewable energy (e.g., solar), reducing dependency on the grid and lowering carbon footprints.
• Detect energy waste, from always-on devices to inefficient systems.
• Make informed decisions on appliance upgrades or behavioral changes that contribute to a greener, more sustainable home.

This feature Could Offer:

• Hourly/Daily/Monthly Consumption Breakdown
• Visualize energy use per hour of day, identifying peak usage times.
  Spot trends like overnight standby consumption or unexpected spikes.
• Drill-Down to Individual Devices.
• Move from whole-home overviews to specific appliances.
  See which devices are drawing the most power in any given timeframe.
• Renewable Energy Optimization
• Correlate solar production data with consumption patterns.
  Visualize surplus solar energy vs. grid consumption in real time and historically.
• Comparisons Over Time
• Compare energy usage across weeks, months, and seasons.
  Highlight progress toward energy reduction goals.
• Exportable Reports
• Generate custom reports (CSV/JSON) for deeper analysis or energy audits.
  Share insights with family, energy consultants, or sustainability programs.

This feature may help making Home Assistant a go-to platform for energy efficiency and sustainability.

Use Cases:

• A user with solar panels and a home battery wants to maximize self-consumption by running energy-hungry appliances at optimal times.
• A homeowner wants to identify which appliances are causing phantom loads overnight and set up automations to power them down.
• A family tracks their energy-saving efforts month-to-month to measure their carbon footprint reduction.
• An energy-conscious user wants to correlate heating/cooling energy use with temperature sensor data to fine-tune their climate control systems.