A draining battery that may still give is raised from its drain rate
towards its rating for the peak floor while another battery is held
(peak > drain); before, the floor's rest landed on the held battery. In a
HOLD, a held battery's own pin counts among the others: a held drain no
longer over-places the site, and a held charge probe no longer parks it.
Tests: test_safety87.py part 10 (drain beside a held battery, N=3 HOLD,
unknown cut-out and unread level at N=3, a stopping row outranks the
running peak alarm). DECISIONS entry updated, incl. the modes-on exception.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019DBUfvndgHwaV339Fvd2gr
At N>=2 a battery at or under its own peak reserve is held: it gives
nothing for the peak (weight 0 while the site gives) and the guard's need
is placed on the live, non-refusing batteries above theirs. The guard is
floor-limited, and alarms, only when those cannot hold the limit at full
power for ALARM_HOLD_S. The peak alarms no longer read "Not ready" or hold
the Home page at 0 W, because control keeps running. N=1 is byte-identical.
DECISIONS/SAFETY-87-guard-uses-able-batteries.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019DBUfvndgHwaV339Fvd2gr
At N>=2 the holding pack's pin follows the guard's floor while the loop
still asks for +5000 W, so the ALLOCATOR "could not be placed" row was
re-logged on every 1 W change and filled the 40-row action log. While the
pin is raised, cycle() now files a site `hold` ceiling at the floor
(P_MAINTENANCE), as SAFETY-84 does for a charge. Filed only when the
holding pack gives; hi == the floor, so it never clashes with it.
Tests: a noisy N=2 house logs no ALLOCATOR row and at most one clamp
row (20 and 20 without the ceiling); the ceiling is the floor itself;
a CHARGE is not refiled at N=1. The DECISIONS entry records the owner's
2026-10-01 decision: the HOLD ends on its clock, no top-up.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
During a HOLD the holding battery gives what keeps the quarter at the peak
aim. N=1: the peak floor is refiled at P_MAINTENANCE, as for a drain
(SAFETY-83). N>=2: the hold's pin is raised to the floor minus what the
other live batteries may place, so they give first. A site stop still
decides alone. The hold ends on its clock even if the level dipped.
Below the aim nothing changes (rows identical).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Part 3 read the simulated September's peak with the wall clock, so from
2026-10-01 it read no peak and crashed on every tree (4ad8298 too).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A 6500 W house needs more than B alone: A must give (the N>=2 suspension),
with a non-vacuous run without it (banks over the cap, 'Load too high').
Without P1 the charge is not sized, as at N=1: A charges at 2000 W.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
At N>=2 a cheap-window maintenance charge files a site `hi` (`charge`,
P_MAINT_SHAPE) equal to what the charging pack's own `hi` places, so the
other pack never has to give against it. The charge is sized to the
quarter's headroom under the peak aim so it yields to the peak guard, and
to 0 W under a site safety stop. N=1 byte-identical (safety84_identity).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
test_safety83 part 1: under a month peak banked above the limit the drain
is lifted to peak - margin, and a drain the guard raises (steady or with
5 s spikes that saturate it) gives no 'Load too high' alarm; the part 3
overload still does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Kills M5 (refiled at P_SAFETY) on its own sentence, not only through the
per-cycle claim check.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The start hour was compared with the UTC hour, so the shipped 10 started at
12:00 in a Belgian summer. It is now read in Home Assistant's time zone
(fallback: the container's TZ, then UTC, one log line says which), and the
default moves to 19. DST: a missing hour starts at the first hour after the
jump; a repeated hour starts only in its first pass. Stored options are not
rewritten: a saved 10 now means 10:00 local (DOCS, CHANGELOG).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A floor exactly at the drain rate stays at P_PEAK (kills `lo >= rate`), and
part 4's N=2 check no longer shares its failure list with N=1.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
At N=1 the drain is the site SET at P_MAINTENANCE (60), so the peak floor
(P_PEAK, 50) was not applied and the house imported what the drain left.
Where the floor asks for more than the drain rate, main.py now refiles the
peak claim at P_MAINTENANCE, so it wins; safety SETs still park everything.
Nothing else changes: safety78_identity --diff against 35cdffe changes only
cycles where the guard wanted more than the drain; N=2 is byte-identical.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Conflicts: modetrade.decide() takes both the day plan (targets) and
SAFETY-78's draining flag; the Why line keeps SAFETY-78's other_cycle
ahead of the plan's word (test added).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- A second unmeasured-headroom stop in a quarter latches the charge: a
headroom missing every other cycle flipped it 1799 times in 30 min.
- Unit test of the run-edge hold's end conditions and of a small step.
- Outside its probe a refuser does not make the others rest (M15 red).
- DECISIONS: one review line.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- DECISIONS: the Cheap hours change and why; the no-sun replay (the gain is
Leftover solar buying the evening's shortfall; the forecast added 0.14
EUR); the reconstruction bias stated plainly.
- DOCS: Cheap hours ignores the forecast; a reading from before midnight
is stale.
- The forecast line: "Solar still to come today: ..." (it is what is
left, and it stays within the 12-word limit).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Cheap hours only fills to the ceiling with or without a forecast, as the
design (section 1) says. Skipping the sun's share cost 0.31 EUR on real
2026 prices (29.72 against P3's 29.41) and saved nothing on the P3 set.
- A forecast reading from before local midnight is stale: until the
integration refreshes, "left today" is still yesterday's 0 and
"tomorrow" is really today.
- Forecast entity ids must be sensor.[a-z0-9_]+ (they go into the
/api/states/<id> path).
- House profile: a stored day that is not a date, or is after today, is
dropped instead of kept forever.
- Text: the forecast line says "for the rest of today"; the learning line
no longer promises "tomorrow" (a plan needs one full day).
- Tests for four surviving review mutants (hour sample floor, the dear run
after the cheap run, share by room, daytime use) and the fixes above.
- Replay tool: `--fc zero` (a forecast of no sun).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- homeview: no "This one does not charge" while the draining battery waits
(no floor then, so the other battery may charge from solar).
- test_safety78: one wait line across a probe, a second episode logs again,
the card while waiting, and a seeded sweep of the floor against every
other claim (part 6).
- DECISIONS: the wait case, and the measured N=1 peak and N=2 charge
follow-ups.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- The alarm must hold for peakguard.ALARM_HOLD_S (10 s) on the projection's
clock. A load that tops cap + battery for ~5 s every 30 s alarmed at every
quarter start while the quarter landed under the aim (sine4500_fast).
- A cycle with no battery reading leaves the hold alone.
- Notified once per quarter, but the ERROR line is written per episode.
- New sim scenarios (sine4500_fast, twice7000, step6500_gap) with 5a4cdc2
digests; control still byte-identical. Unit checks for export and the
hold across a missing reading. test_peakguard's saturated fixture moves
the hold start back instead of waiting it out.
- DECISIONS and DOCS updated: costs of the hold, tolerance reasoning, the
double count in control left to a follow-up.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
F1: with battery modes on, the peak guard projects the quarter `now` is in
even before its first P1 sample (PeakTracker.project(roll=True)), and only
a measured stop latches the period. The edge tick no longer reads "no
seconds left", so a charge is not stopped and latched at a quarter edge.
F2: after a run edge the loop is held at E until the meter shows the step
(EDGE_HOLD_S, longer while the battery still moves). The replay gained a
lag model (dead time, reading age, P1 debounce, 1 s cycles) that shows
TEST-23's overshoot without the hold.
F3: a charge refuser's SAFETY-73 probe inside a cheap run is a charger
pinned at PROBE_W, the others rest, so the probe actually runs.
Modes off stays byte-identical to 5a4cdc2 (new late-P1 identity scenarios).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The alarm now also needs peakguard.load_too_high(): with the battery at
full power, the quarter still ends more than 10 W over the real limit.
The battery reading is the lower of this cycle's and the last, so a meter
sample from before the battery's last increase is not counted twice.
At most one alarm per quarter. Control outputs unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
At two inverters the drain pins its pack and the site target is split
around the pin. Below the pin the other pack had to charge, the allocator
refused the opposite directions, and the site sat at 0 W with an ARBITER
line every cycle (house below or above the drain rate, or a grid charge).
main.py now files a site limit `drain` (lo = what the pin places, at
P_MAINTENANCE) at N>=2 while a pack drains, so the other pack only adds
power in the same direction. A drain that cannot give power waits with
one log line. With battery modes on, no grid charge while a pack drains,
and the other battery's card says why. N=1 is byte-identical.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A Home Assistant solar forecast (Forecast.Solar, Solcast or Open-Meteo
shapes) and the add-on's own hourly house use decide, before each cheap
run, whether the sun will fill each battery before the expensive hours.
Leftover solar then buys from the grid only the shortfall; Cheap hours only
skips the part the sun covers; Solar first never grid-charges. No, stale or
failed forecast: P3 option A exactly (12 digests pinned from 5a4cdc2).
Replay (16 recorded days, forecast errors from Elia's day-ahead BE solar):
year-earlier prices P4 19.15 vs P2 19.33 / option A 19.44 / old trade 18.14;
real 2026 prices P4 29.19 vs 32.26 / 32.01 / 31.40 EUR net.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Step 5 said "Choosing a mode for each battery comes in a later update",
stale since P1. It now points to battery modes on the Batteries screen
(EN/NL); test_setup checks the new line.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Owner decision 2026-09-29. Selling is off until it can be judged on the price
the grid pays: packmode.SELLING_ENABLED = False makes read() answer
sell=False whatever the store holds, pack_sell is refused ("Selling is off
for now."), and the page has no selling switch; the sell code stays. Until
the P4 forecast, only Cheap hours only charges from the grid
(packmode.GRID_CHARGE_MODES); Leftover solar holds and gives in the
expensive runs. Help, Today and plan lines, DOCS and DECISIONS follow.
Replay, 16 days: Solar first + Leftover solar 19.44 EUR net (P2 19.33).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- A sale block on the plan no longer says "Worth up to" at the import
price: a sale earns the lower injection price.
- The selling switch help (EN/NL) and DOCS say the grid pays less than
power costs; DECISIONS records why P3 loses on the replay.
- test_modes_p3 part 11: modes on ignore the site trade switch (R13), a
battery in maintenance takes no part (R10), a headroom stop latches for
the period (R8). All three mutants survived before and are red now.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cheap and expensive hours as runs of consecutive firm price slots
(priceruns.py); each battery's role per tick from its mode (modetrade.py):
grid charging for Leftover solar / Cheap hours only, never Solar first;
holding for the expensive runs; selling per battery (pack_sell) above the
spread and the floor. The site trade is sized inside the modes (loop bound)
and the peak guard's headroom; a run edge reseeds the loop. Cheap hours only
and selling are enabled on the Batteries screen and in the HA select
(appended). The site Why row no longer says "held back" when the peak limit
pushes power up (F2). Modes off: byte-identical to 7a00f12 on the trade path.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- quarter_target_w() is now the margin under quarter_ceiling_w(): a peak
banked between cap - margin and the cap was aimed at exactly, so one
overshoot crossed the cap; above the cap the same overshoot raised the bill.
- safety79_identity.py hashes charge_headroom_w() and the shaping suspension,
and adds n1_maint/n2_maint (cheap window, forecast across cap - 50 .. cap).
Digests re-printed on ed739d4 and pinned; margin 0 still identical.
- test_margin_under_banked_peak; DECISIONS and DOCS updated.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- A refusal past the log-once set or the 32 cap is counted in the log at
1, 10, 100 and so on, so a repeated attack stays visible.
- The logged topic is printable only (no forged log lines).
- mode_announcement(): the start-up store logic, now tested with a real
Store. A removed config topic stays stored, so a start with no broker
cannot forget it (rename case tested).
- A test ties each HA mode option to the page's English name.
- packmode.enabled() is tested for "true", 1 and "false".
- Retained-command text, DOCS and DECISIONS updated to match.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude
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