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OPT-34: the night charge keeps its level when the kept forecast ends
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With the forecast sensors silent from 17:05 the kept evening figure ended at
midnight + 3 h, in the middle of the night grid charge, and Leftover solar's
planned level went with it (rig: A 49.8 % against 79.9 %).

- A night grid charge that has started keeps its planned level when the forecast
  goes (Controller._latch_charge, store key night_charge_latch), and the narrow
  price gap with it (weather_held). A fresh figure still moves the level.
- The evening's tomorrow figure is today's until the bell starts (06:00 local),
  up to 15 h old but only if it was usable at midnight (solarfc.Hold.stand_in).
- Screen: "No solar forecast now. The charge under way goes on to its planned
  level." (EN/NL) while a latched battery is below its level.
- test_opt34.py (whole nights through the real control cycle, mutants), test_opt27
  and test_modes_p4 adjusted to the new window and the kept level.

Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Bdqr7PiaHcBnzPituu2yTC
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glenn schrooyen
2026-10-31 17:00:31 +01:00
co-authored by Claude
parent deee98d352
commit 412e47f111
12 changed files with 783 additions and 64 deletions
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@@ -557,7 +557,7 @@ With battery modes on, these choices replace the *Charging and selling on price*
- The plan is checked every 15 minutes. A planned level moves only by 1 kWh or 10 %, so a wobbling forecast does not flip it.
- No forecast, one older than 3 hours or from before midnight, or no house use yet: *Leftover solar* takes solar only and *Cheap hours only* fills to the top level. The Batteries screen says so.
- A battery needs its capacity (`inverters.capacity_kwh`) for a plan.
- **At night.** Some forecasts stop updating in the evening (Forecast.Solar does). The add-on keeps the last reading of each sensor and uses it for that night's plan: from 20:00 until 03:00, or until a newer reading comes. A sensor that is missing for up to 3 hours is covered the same way. A figure is never used for another day, and never when it is more than 12 hours old. The Batteries screen says "Solar forecast read 17:05, kept for tonight." With no reading all day, the night run still needs the wider gap.
- **At night.** Some forecasts stop updating in the evening (Forecast.Solar does). The add-on keeps the last reading of each sensor and uses it for that night's plan: from 20:00 until 06:00, or until a newer reading comes. After midnight the evening's figure for tomorrow is today's, whole, because nothing has been produced yet. A sensor that is missing for up to 3 hours is covered the same way. A figure is never used for another day, and never when it is more than 12 hours old (15 hours after midnight, for a figure that was still in use at midnight). A charge from the grid that has started keeps its level when the forecast ends, and goes on to it; the Batteries screen says so. The Batteries screen says "Solar forecast read 17:05, kept for tonight." With no reading all day, the night run still needs the wider gap.
**What always comes first.**
- The peak limit, the safety stops and the monthly cycle come before a battery's mode.