- New "hero" variant between compact and full: pct + status +
sparkline + trend, no sub-cards or accordion
- 24h Wind+Solar sparkline below hero pct, accent-colored
- Trend arrow vs previous hour with delta percentage points
- Polling pauses on tab hidden, refetches on visibility return
if last fetch >5min old
- Skeleton loader replaces "Lade…" text (matches final layout)
- Retry button on error state (silent vs explicit fetch)
- Stale-flag now prominent red badge in header bar
- Stand-time wrapped in <time datetime title> for full-date hover
- loadMw=0 falls back to last hourly slot instead of red error
- Negative-price banner replaces standalone price card (dedup)
- Production breakdown grid: clean auto/1fr label-value alignment
- Print CSS: details auto-open, chevrons hidden
- All German strings moved to translation keys
- STROMMIX_DEFAULT_THRESHOLDS const as single source for buckets
Includes data-block="LiveStrommix" attribute for the new
identifier scheme + new RenewableSparkline.svelte component.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Aggregator route /api/strommix now reads three RustyCMS history-mode
collections in parallel — strommix_history_de, price_de_history,
crossborder_history_de — and projects derived metrics on top of the raw
upstream snapshots stored there:
- todayHourly: per-slot Last + Wind+Solar for the residual-load chart
- negPriceHoursYtd: count of YTD slots where DE-LU day-ahead < 0
- crossborderTodayGwh / netCrossborderGwhYtd / crossborderByCountryGwhYtd:
GW × slot-hours integrated into a per-country GWh balance
- lastDunkelflaute / worstDunkelflauten: contiguous runs where
(wind+solar)/load drops below 10 % for at least 1 h, top 5 by duration
All four are null-graceful — collections that the CMS hasn't backfilled
yet leave the corresponding panel hidden instead of breaking the widget.
Five new components in lib/components/blocks/strommix/:
- ResidualLoadChart.svelte — SVG line chart, no chart-lib dep
- CapacityFactorBars.svelte — live vs installed Wind/Wind-Off/Solar
- DunkelflauteCounter.svelte — last phase card + top-5 list
- NegPriceCounter.svelte — YTD hours + manual EinsMan compensation
- FlowBalanceTodayYtd.svelte — today + YTD saldo with per-country breakdown
Block schema additions (block-types.ts + strommix-default.json5 in
cms_content): installed_*_gw / installed_as_of for the capacity-factor
bars (BNetzA Marktstammdatenregister snapshot, manually maintained), and
einsman_costs_ytd_eur_mio / einsman_costs_as_of for the NegPrice panel
(BNetzA quarterly report figures, no API).
Peter Meier