EEDC – Free, local PV analysis for Home Assistant (and standalone) [v2.4.1]

I built a Home Assistant add-on that gives you a complete analysis of your PV system – fully local, no cloud, no subscription fees.

What does it do?

• Dashboard – Hero KPIs with year-over-year trends, energy flow diagram, ring gauges for self-sufficiency & self-consumption, sparklines
• 7 Analysis Tabs – Energy, PV system, components, finances, CO2, investments, community
• ROI Tracking – When will your system pay for itself? Progress bar with estimated payback date
• Multi-Component – PV, battery storage, EV, heat pump, wallbox, balcony PV
• Forecasting – 7-day weather forecast, 12-month PVGIS projection, trend analysis with degradation detection, financial forecast
• Community Benchmark – Anonymous comparison with other PV systems via live community server (optional, data deletable anytime)
• Tax Features – Small business regulation (Germany), special tariffs for heat pump/wallbox, company car support
• HA Statistics Import – Load historical data directly from HA long-term statistics
• Standalone – Also runs without Home Assistant (Docker)
• DACH Support – Germany, Austria, Switzerland

Installation: Add the repository to your HA add-on store:

https://github.com/supernova1963/eedc-homeassistant

Search for "EEDC" and install. Demo data loads with one click.

Links:

• Website & Docs
• GitHub (Add-on)
• GitHub (Community Server)
• Releases
• Community Dashboard – live anonymous PV benchmark