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OPT-23-28 review: the unheld-shortfall line says another battery or the grid
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With A on Leftover solar and B on Cheap hours (the dynamic scenario, and the
owner's planned setup), the line said "The batteries cannot hold it all. The
grid covers N kWh", while B holds a full charge for the same hours. It now
says "The expensive hours need more than Leftover solar can hold. The rest,
N kWh, comes from another battery or the grid." (NL likewise). DOCS,
DECISIONS and the dayplan/homeview docstrings say the same. Text only.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Bdqr7PiaHcBnzPituu2yTC
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glenn schrooyen
2026-10-29 23:21:31 +01:00
co-authored by Claude Opus 5.5
parent 995028bc5d
commit ae0cd542c0
7 changed files with 19 additions and 15 deletions
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goodwe_controller/DECISIONS/OPT-23-28-the-night-charge-covers-the-dear-hours.md
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- **Shortfall.** `sum_h max(0, house_h - trust x sun_h)` over every expensive hour, `/ EFF`, from the floor. It replaces the use over the run with no sun counted, which on a day and night tariff bought for the whole day (G1, `reports/UX-69-design-report.md`). The sun before the run is unchanged. A run with its dear hours after sunset gives the old number.
- **House use.** An hour with sun is read at no less than the night base, as the sun sum reads it (the profile is net of the sun). An hour without is read as measured. An hour with no forecast counts no sun.
- **Several batteries.** One total, shared by capacity with the ceiling passed on (`dayplan._spread()`). With the same floor and ceiling for all, they reach the ceiling together, so a shortfall that one battery cannot hold fills both to the same level, not one first. More than all hold: all go to the ceiling, `Plan.uncovered_kwh` is the rest, and the grid carries it at the expensive price.
- **Several batteries.** One total, shared by capacity with the ceiling passed on (`dayplan._spread()`). With the same floor and ceiling for all, they reach the ceiling together, so a shortfall that one battery cannot hold fills both to the same level, not one first. More than all hold: all go to the ceiling, `Plan.uncovered_kwh` is the rest, carried by another battery (Cheap hours, Solar first) or the grid, as the screen says.
- **Cheap hours** still fills up and is not counted in the share; **Solar first** still never charges from the grid. The mode help says so.
- **Not done:** the run length (OPT-25); netting what a Cheap hours or Solar first battery will hold against the shortfall.