Solar Fusion Card

Lovelace custom card for the Solar Fusion integration. Displays the fused PV forecast with source comparison, quality metrics, and a 14-day history sparkline.

Features

• Today & Tomorrow – fused kWh value with uncertainty indicator
• Source comparison – bar chart and weighting for all active forecast sources
• Quality table – RMSE, bias, and quality label per source
• History sparkline – actual generation vs. forecast (14 days)
• Click any value to open the HA more-info dialog for the underlying entity

Requirements

• Home Assistant with the Solar Fusion integration installed
• HACS (for easy installation)

Installation via HACS

1. HACS → Frontend → ⋮ → Custom repositories
2. Enter the repository URL, select category Lovelace → Add
3. Search for Solar Fusion Card in HACS and install it
4. Reload Home Assistant

Manual installation

1. Create the folder /config/www/hass-solar-fusion-card/
2. Copy solar-fusion-card.js and the locales/ folder into it:

   /config/www/hass-solar-fusion-card/solar-fusion-card.js
   /config/www/hass-solar-fusion-card/locales/en.json
   /config/www/hass-solar-fusion-card/locales/de.json
   

3. Settings → Dashboards → Resources → Add resource:
   • URL: /local/hass-solar-fusion-card/solar-fusion-card.js
   • Type: JavaScript module
4. Clear browser cache / hard reload

Configuration

Only one entity is required – all other values are read automatically from its attributes.

type: custom:solar-fusion-card
entity: sensor.solar_fusion_dach_fused_today
title: Solar Fusion Roof   # optional

Options

Option	Type	Default	Description
entity	string	required	*_fused_today sensor entity ID
title	string	Solar Fusion	Card heading

Translations

The card ships with English (en) and German (de). All UI strings live in dist/locales/<lang>.json.

Adding a new language is easy:

1. Copy dist/locales/en.json to dist/locales/<lang>.json (e.g. fr.json, nl.json)
2. Translate the values – keep the keys unchanged
3. Open a pull request

The card automatically picks up the language set in your Home Assistant profile.

License

MIT