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Changelog

2026.5.0 — 2026-05-05

Fixes

  • Monthly score no longer shows NaN at the start of a new month — uses the current quartile midpoint as a placeholder when no consumption is recorded, includes today's in-progress score in the monthly average, and falls back to the previous month's finalised score when the current month is empty
  • Optimization score accumulation now ranks slots by true total price (fixed-period rate or spot + transfer) instead of spot-only API rank — primarily affects fixed-price contract users
  • cheapest_hours service now uses total price (fixed-period or spot + transfer) for window selection — was previously spot-only

New

  • total_price_quartile sensor (1–4)
  • cheapest_hours accepts reverse: true parameter to return the latest cheapest window on ties

Changed

  • total_price_rank is now normalized: 1 = cheapest, slots_per_day = most expensive (regardless of unique tier count)

Removed

  • best_charge_hours service — consolidated into cheapest_hours (use cheapest_hours with reverse: true for the equivalent)

2026.3.0 — 2026-03-16

⚠️ BREAKING CHANGES ⚠️

  • Six sensors have been renamed to clarify they reflect spot prices only:
Old name New name
today_avg today_spot_avg
today_min today_spot_min
today_max today_spot_max
tomorrow_avg tomorrow_spot_avg
tomorrow_min tomorrow_spot_min
tomorrow_max tomorrow_spot_max

Update any automations or dashboard cards referencing the old entity IDs.

New shiny things

  • Add generation & export support for users with solar panels and/or home batteries: export pricing sensors, battery charge/discharge optimization sensors and binary sensors, and related services
  • Add rolling average price sensors (30/60/120 min ahead) — opt-in, 15-min resolution only
  • Add monthly fixed cost configuration: electricity contract base fee and per-transfer-group fee, shown as a daily cost sensor

Maintenance

  • Fix tomorrow_total_avg/min/max showing Unknown when a fixed-price period covered tomorrow
  • Fix optimization score sensors showing 0.0 instead of Unknown when no meter is configured
  • Fix fixed-price period price field pre-filled with 0.001 in the UI

2026.3.0-beta.2 — 2026-03-15

  • Fix today_total_avg/min/max to use effective price (respects fixed-price periods) instead of raw spot price
  • Fix tomorrow_total_avg/min/max to always use fixed price when fixed-price period is active, regardless of whether spot prices have been fetched

2026.3.0-beta.1 — 2026-03-14

  • First beta release
  • Add today_total_avg, today_total_min, today_total_max — today's total price (spot + transfer) statistics
  • Add tomorrow_total_avg, tomorrow_total_min, tomorrow_total_max — tomorrow's total price statistics (unavailable until prices fetched)
  • Migrate core price logic to kilowahti-py library
  • Add integration test suite (32 tests)

2026.3.0-alpha.6 — 2026-03-11

  • Add total_price_rank sensor — ranks current slot by total price (spot + transfer) among today's slots
  • Add writable price_threshold and rank_threshold number entities — adjust thresholds from automations or dashboard without reopening configuration
  • Transfer price and control factor transfer sensors now always visible; show unavailable when no transfer group is configured
  • Fix tomorrow_avg, tomorrow_min, tomorrow_max to show unavailable when tomorrow's prices have not yet been fetched

2026.3.0-alpha.5 — 2026-03-10

First public test release.