goodwe-addon/goodwe_controller/config.yaml

name: GoodWe RS485 Controller
version: "0.7.0"
slug: goodwe_controller
description: >-
  Drives a GoodWe ES/BP battery inverter over RS485 by emulating its smart
  meter, holding net grid exchange at zero and running a monthly battery
  maintenance cycle.
url: https://gittea.kammenstraatha.duckdns.org/admin/goodwe-addon
arch:
  - aarch64
  - amd64
  - armv7
init: false
startup: application
boot: auto

# Needed to read the meter and to write the ESPHome setpoint number.
homeassistant_api: true
hassio_api: true

# Own diagnostics/operations UI inside HA. This is what a field tech and a
# remote supporter both look at, so it is not optional.
ingress: true
ingress_port: 8099
panel_icon: mdi:battery-sync
panel_title: GoodWe

# Optional: publish status entities by MQTT discovery. `want` rather than
# `need` - the add-on runs fine with no broker, it just publishes nothing.
services:
  - mqtt:want

options:
  # ==========================================================================
  # HARDWARE - the inverter, its actuator and its own sensors
  # ==========================================================================
  setpoint_entity: ""
  soc_entity: ""
  batt_entity: ""
  batt_invert: false

  # ⚠️ EMPTY IS NOT "UNCONFIGURED", IT IS THE SINGLE-INVERTER CONFIGURATION, and
  # it is what every install that upgrades into this version lands on. An empty
  # list means THE SIX FLAT KEYS - `setpoint_entity`, `soc_entity`,
  # `batt_entity`, `batt_invert`, `max_w` and `bms_soc_floor` - DESCRIBE THE
  # ONE INVERTER: same entities, same rating, same behaviour, no operator
  # action, which is the only migration story this key was allowed to have.
  # `build_roster()` reads this and nothing else decides the shape.
  #
  # Declared, it REPLACES those six keys rather than extending them. Each entry
  # names its own actuator, its own rating and its own sensors:
  #
  #   inverters:
  #     - name: inverter-a
  #       setpoint_entity: number.goodwe_a_setpoint_w
  #       soc_entity: sensor.goodwe_a_soc
  #       batt_entity: sensor.goodwe_a_battery_power
  #       max_w: 5000
  #       bms_soc_floor: 10
  #     - name: inverter-b
  #       setpoint_entity: number.goodwe_b_setpoint_w
  #       soc_entity: sensor.goodwe_b_soc
  #       batt_entity: sensor.goodwe_b_battery_power
  #       max_w: 4600
  #       bms_soc_floor: 10
  #
  # ⚠️ THE 4600 IS INVERTER B'S DATASHEET FIGURE, NOT A MEASUREMENT AND NOT A
  # PLACEHOLDER. SPIKE-04a (2026-09-04) identified B as a GoodWe GW5048D-ES,
  # serial `55048ESU22AW0992`, whose datasheet gives Max. Charging / Discharging
  # Power as 4600 W; nothing will be connected to its MPPTs, so the battery path
  # is the ceiling and the 5000 VA AC nameplate is not. The 3000 W this example
  # used to carry was a guess made before the unit was known. ⚠️ It is STILL not
  # measured: the datasheet prints 4600 W under BATTERY INPUT DATA, so it may be
  # DC, and `max_w` is graded against 0x0518 - the inverter's own AC power. If it
  # is DC the AC ceiling is nearer 4324 W. SAFETY-20's `min(max_w, dev_max)` is
  # what settles that once the device range is read; see goodwe/NOTES.md §1.1b,
  # which records both readings and picks neither.
  #
  # ⚠️ AND THE `bms_soc_floor: 10` BESIDE IT IS FROM THE SAME PLACE - THE
  # DATASHEET AND THE SERIAL, NOT A PACK ANYONE HAS READ. No second inverter
  # exists on this site (SPIKE-04, ≈ 2026-09-12 for B); the cut-out must be read
  # off the pack that is actually installed (register 0x0560 on the reference
  # unit) before that pack is commanded. It reads 10 here because pack A reads
  # 10, which makes this example DEGENERATE ON THE FLOOR AXIS: a site whose two
  # packs floor at the SAME percent cannot separate `min`, `max`, first or last
  # over the roster, and every SAFETY-32 fixture that DIFFERS the floors differs
  # it for exactly that reason. Do not "simplify" those fixtures to match this
  # example.
  #
  # ⚠️ NOTHING IS INHERITED FROM THE FLAT KEYS BY AN ENTRY THAT OMITS IT, and
  # that is the whole of DEV-02 restated as a config rule. `soc`, `batt` and the
  # rating became per-instance precisely so that no inverter is ever graded
  # against a sibling's numbers; an entry silently inheriting `soc_entity` would
  # rebuild that defect in YAML. `name`, `setpoint_entity`, `max_w` and
  # `bms_soc_floor` are therefore REQUIRED of every entry (the schema below enforces it, and
  # validate.py rule 9 enforces it again for the callers the Supervisor never
  # sees). An omitted `soc_entity`/`batt_entity` means THIS UNIT HAS NO SUCH
  # SENSOR - `inputs_ok` already stops the site for that - and never means
  # "use the other one's".
  #
  # ⚠️ SAFETY-32: `bms_soc_floor` IS PER ENTRY AND IS REQUIRED, NOT DEFAULTED.
  # It is the percent THAT pack's own BMS cuts out at, and two batteries of
  # different models do not share one. A default would be this add-on inventing
  # a cut-out for a battery it has not been told about, which is the same defect
  # as inheriting one: the shallower pack gets protected by a floor that belongs
  # to the deeper pack, and validate.py rule 8 - which refuses a peak_soc_floor
  # the BMS would win against - would be grading the wrong number. Rule 8 grades
  # EVERY entry and names the one it refuses. The flat key below is unchanged and
  # is the single-inverter shape's own cut-out.
  #
  # ⚠️ AND THE FLAT `setpoint_entity` MUST THEN BE BLANK. Leaving it set while a
  # roster is declared is two config sites aimed at actuators, one of which
  # nothing writes; if it names an entity an entry also names, SAFETY-28's
  # writer census refuses it as two writers on one actuator, and if it names a
  # different one the add-on would run a site quietly smaller than the config
  # reads. Rule 9 refuses both rather than picking one.
  #
  # ⚠️ THE SHAPE WAS MEASURED, NOT ASSUMED. A list of objects is not used
  # anywhere else in this file, and whether Supervisor's options validator
  # accepts one was an open question - `static_profile` carries its structure as
  # a JSON string in a `str?` for exactly that doubt. It was settled by running
  # Supervisor 2026.08.0's OWN `AppOptions` validator (the version this site
  # runs) against both candidates: tools/supervisor_shape_probe.py is the
  # script, DECISIONS/CFG-04-inverter-roster.md is what it printed and why the
  # list won. The default `[]` is load-bearing in that record: WITHOUT it the
  # validator answers `Missing option 'inverters' in root` for every existing
  # options blob, and the upgrade leaves an add-on that cannot start.
  inverters: []
  estop_fitted: false

  # ==========================================================================
  # METER - where the grid reading comes from
  # ==========================================================================
  # `off` keeps the original single `meter_entity` path, so an existing
  # install is untouched until it opts in. ha_dsmr subscribes to the DSMR
  # integration's entities over the HA WebSocket; mqtt_p1 reads the topic below;
  # ha_signed reads ONE signed HA entity (+ import / - export), which is what a
  # HomeWizard P1 publishes and what ha_dsmr cannot consume.
  # homewizard_local skips Home Assistant entirely and polls the meter's own
  # local API. ⚠️ It is the ONLY mode whose sensor.p1_sample_age_s measures when
  # the meter REPORTED rather than when the value last CHANGED - HA emits
  # nothing at all for a repeated reading - so it is the only mode a firmware
  # watchdog may threshold. See DOCS.md.
  meter_source: "off"
  meter_entity: sensor.p1_meter_active_power
  meter_invert: false
  meter_phases: 1

  # homewizard_local only. The meter's own address, `host` or `host:port`.
  p1_host: ""

  # homewizard_local only. Seconds between polls. Must be well under
  # meter_max_age_s - the age is never fresher than this interval - and there is
  # nothing to gain below the meter's own ~5.0 s update rate (NOTES.md:640).
  meter_poll_s: 5
  meter_max_age_s: 30
  meter_mqtt_topic: ""

  # The two UNSIGNED Belgian registers. The EMS derives net power from them
  # (import - export); do NOT point these at a signed template sensor.
  p1_import_entity: ""
  p1_export_entity: ""

  # ha_signed only. ONE signed net-power sensor: positive = import from the
  # grid, negative = export to it. Do NOT split it into two template sensors -
  # the split is done in the add-on (p1.split_signed) precisely so the sign
  # convention is tested rather than living in unreviewed YAML.
  p1_net_entity: ""

  # Optional, in L1..L3 order. Required for the capacity-tariff peak on a
  # three-phase connection; the list length must equal meter_phases.
  p1_phase_import_entities: []
  p1_phase_export_entities: []

  # Optional, in L1..L3 order, each one signed the same way. Same role as
  # p1_phase_import_entities: the capacity-tariff peak on a three-phase
  # connection. The list length must equal meter_phases.
  p1_phase_net_entities: []

  # ==========================================================================
  # RATINGS AND LIMITS - what this site is allowed to do
  # ==========================================================================
  max_w: 2000

  # The pack's OWN cut-out percent - what the BMS enforces whatever
  # `peak_soc_floor` is set to. Register 0x0560 reads 10 on the reference
  # GW5000S-BP, consistent with DoD 90. It is here so validate.py can REFUSE a
  # peak_soc_floor at or below it: such a floor can never bind, the BMS wins,
  # and the status page would report an energy backstop that does not exist.
  #
  # ⚠️ SAFETY-32 - THIS KEY DESCRIBES ONE PACK, so it is the SINGLE-INVERTER
  # shape's number and nothing more. Declare an `inverters:` roster and each
  # entry states its own `bms_soc_floor`; this one is not read at all and is
  # not inherited by any entry. Rule 8 then grades every unit separately, which
  # is the whole of that card: one cut-out for two packs of different models
  # protects the shallower pack with the deeper pack's number.
  bms_soc_floor: 10
  peak_cap_w: 3500
  peak_forecast_entity: ""

  # The peak guard can COMMAND a discharge to hold a billed quarter under
  # peak_cap_w. Until this card it was bounded from below by nothing but the
  # pack's own BMS cut-out - a real floor, but the PACK's protection rather than
  # the OPERATOR's. On the 2026-08-20 replay the guard asks for 878 Wh in a day.
  #
  # peak_soc_floor is the percent below which that discharge is not sized. When
  # it binds the guard reports FLOOR-LIMITED, keeps charging blocked (a 0 W
  # floor), and the add-on raises ONE notification saying the quarter will be
  # exceeded - failing to shave is never silent, because the euro figure is the
  # whole point of the guard.
  #
  # ⚠️ THIS IS NOT maintenance_soc_floor AND MUST NOT BE MERGED WITH IT.
  # maintenance_soc_floor is the DRAIN TARGET of the monthly recalibration: the
  # depth the cycle deliberately goes to, once a month, on purpose. This is the
  # depth a money-saving discharge may never reach on any day. The right values
  # differ, and sharing one key would couple two features that want to move
  # independently.
  #
  # ⚠️ 20 IS DERIVED, NOT PICKED. The reference pack is 13.8 kWh usable and the
  # worst modelled guard day is 878 Wh, i.e. 6.4 % - so 10 points above the
  # pack's own cut-out leaves the guard ~1.6 of its worst observed days of room
  # and still never reaches the BMS.
  #
  # ⚠️⚠️ SAFETY-25 - WHAT THIS DOES NOT BOUND, AND IT IS THE HALF THE NAME HIDES.
  # peak_soc_floor BOUNDS THE PEAK GUARD ONLY. IT IS NOT A PACK-WIDE RESERVE.
  # Ordinary self-consumption - the grid-following loop that holds the meter at
  # zero - has no SoC floor of any kind, so on a sustained-load evening it will
  # discharge STRAIGHT PAST this number and go on until the pack's own BMS
  # cut-out (bms_soc_floor) stops it. Replayed on the committed 2026-08-20
  # capture, 19:00-22:00 UTC: a 13.8 kWh pack starting at 21 % ends the evening
  # at 10.0 %, and 343 of 587 control cycles deliver discharge with the pack
  # already below this floor. Setting this key higher does not change that by
  # one tenth of a percent - the same replay at every value the schema accepts
  # (5..60) ends at the same 10.0 %.
  #
  # The reason is structural, not an oversight: the peak guard files a `lo`
  # limit (a LOWER bound on the setpoint), which is what makes it provably
  # unable to cap a discharge or contradict the arbiter - and therefore also
  # unable to stop one the loop itself wants. See peakguard.py's module note and
  # DECISIONS/SAFETY-25-loop-soc-floor.md, which records the options for a
  # loop-side reserve and is waiting on the product owner. Until that is
  # answered, the BMS is the only floor under self-consumption.
  peak_soc_floor: 20

  # ==========================================================================
  # TARIFF - what energy costs, and whether to trade on it
  # ==========================================================================
  # `off` is the shipped default and means the §11.4 no-price-data row applies:
  # static profile, plan provisional, NO ARBITRAGE. Nothing in 0.5.x consumes
  # the series yet - OPT-04 is the consumer - so turning this on today fetches,
  # validates and publishes prices and changes no energy decision.
  #
  # ⚠️ THESE DEFAULTS ARE MIRRORED ONCE, IN app/price.py's
  # PRICE_OPTION_DEFAULTS, and test_price.py reads THIS FILE and asserts the two
  # agree key for key. Do not add a third copy in main.py - CFG-03 is open
  # because that has already happened three times.
  #
  # markup/taxes are the §14 `tariffs.energy_price.*` figures and are added by
  # the FRAMEWORK, only for the components the chosen plugin declares its feed
  # does not already contain. engie_dynamic, totalenergies_dynamic, eneco_eddy
  # and manual_csv publish a figure that already carries the markup, so setting
  # it under those is ignored - and logged as ignored, never applied twice.
  price_provider: "off"
  price_markup_eur_kwh: 0.03
  price_taxes_eur_kwh: 0.06

  # §9.3: injection is priced SEPARATELY, and in Belgium it is often near zero -
  # which by itself strongly favours self-consumption over export. A scalar, not
  # a second series: no shipped supplier publishes a dynamic injection curve.
  export_price_eur_kwh: 0.04

  # §14's `tariffs.static_profile`, and "" is its `null`. §9.2: "a large share
  # of the installed base is on [a static profile]" - this is what makes those
  # sites first-class rather than "price_provider: off, good luck".
  #
  # A JSON object, on one line, whose periods must tile every day type exactly
  # once - no gap and no overlap. A gap is REFUSED at startup rather than
  # defaulted, because an invented price is one an optimiser would trade on.
  # A fully-fixed tariff is ONE period covering 00:00-24:00, all days; the
  # add-on derives "fixed" from there being one distinct price, so there is no
  # box to tick and none to tick wrongly.
  #
  #   {"periods": [
  #      {"name":"day",  "from":"07:00","to":"22:00","days":"mon-fri","eur_per_kwh":0.34},
  #      {"name":"night","from":"22:00","to":"07:00","days":"mon-fri","eur_per_kwh":0.26},
  #      {"name":"night","from":"00:00","to":"24:00","days":"sat,sun", "eur_per_kwh":0.26}]}
  #
  # ⚠️ A window written "22:00-07:00 mon-fri" does NOT cover Saturday morning -
  # a period applies on the day the CLOCK reads, so the weekend row above is
  # required, not decorative. See DOCS.md.
  #
  # eur_per_kwh is ALL-IN (energy + markup + taxes, §9.3), the same basis the
  # dynamic providers are assembled onto. price_markup_eur_kwh and
  # price_taxes_eur_kwh are NOT added to it.
  #
  # ⚠️ RECOMMENDED EVEN ON A DYNAMIC SITE. §11.4's degradation row is "no price
  # data -> fall back to the static profile"; with this empty there is nothing
  # to fall back to and a dead feed leaves the site with no tariff at all.
  # validate.py warns about exactly that.
  static_profile: ""
  price_csv_path: "/share/goodwe_prices.csv"
  price_feed_url: ""
  price_horizon_h: 48
  price_timeout_s: 10

  # ⚠️ THE OLD PRICE PATH, AND IT IS NOT DEAD YET. These two entities are the
  # add-on delegating the whole price question to Home Assistant: main.py reads
  # both and derives ONE BOOLEAN, `cheap = now <= avg`, which is consumed by
  # nothing except the maintenance cycle's cheap-window charge floor. That is
  # all they have ever done. They are kept, because retiring them would take
  # the maintenance cycle's only price signal away on a live install before
  # anything replaces it - TARIFF-03 (static profile) and OPT-04 (arbitrage)
  # are the cards that replace it, and neither has landed.
  #
  # ⚠️ They may NOT be combined with `price_provider`. Two price sources on
  # one site, one of which silently wins, is exactly the "double up" the PM
  # named; validate.py rule 7 refuses that configuration at startup rather than
  # letting an operator believe the provider they configured is driving
  # something. See app/validate.py.
  price_now_entity: ""
  price_avg_entity: ""

  # Charge in the cheapest published hour, discharge in the dearest, and ONLY
  # when the spread covers what the round trip costs. Off in the shipped
  # configuration: this is the first strategy in the add-on that moves energy
  # against the meter on purpose, so it is armed deliberately or not at all.
  #
  # ⚠️ IT NEEDS A PRICE SOURCE AND A P1 METER, and validate.py refuses the
  # combinations that cannot work rather than letting them look armed. With
  # `price_provider: off` and no `static_profile` there is no series to trade
  # on; with `meter_source: off` the capacity-tariff peak guard never runs, and
  # §9.1 puts peak shaving above arbitrage - a charge nothing measures is the
  # exact failure that guard exists to prevent.
  #
  # ⚠️ AT THE SHIPPED THRESHOLD A STATIC DAY/NIGHT SITE DOES NOT TRADE. The
  # realistic Belgian day/night spread is about 0.08 EUR/kWh and the threshold
  # below is 0.10, so the verdict is "the firm spread does not cover this
  # cycle's cost" and nothing happens - correctly. That is a product decision
  # (this number, and app/price.py's widening factors) and it is open with the
  # owner; the code is correct at any value and no number was picked to make a
  # trade appear.
  arbitrage_enabled: false

  # §10.1's `cycle_cost_threshold_eur`: what one full round trip costs per kWh
  # - the wear on the pack plus the conversion losses. A spread below this is
  # a cycle that loses money and pack life, so it is not taken.
  cycle_cost_threshold_eur: 0.10

  # The reserve arbitrage may not spend, and the headroom it may not overfill.
  # Deliberately NOT the maintenance_soc_* keys: those describe a monthly
  # balancing cycle, and pointing a trading strategy at them would couple two
  # unrelated policies through one number.
  arbitrage_soc_floor: 20
  arbitrage_soc_ceiling: 95

  # ==========================================================================
  # MAINTENANCE - the monthly battery recalibration cycle
  # ==========================================================================
  # ⚠️ CFG-03. THESE EIGHT LINES ARE THE SOURCE OF TRUTH FOR THE MAINTENANCE
  # DEFAULTS. The Supervisor reads this file and the operator edits this file,
  # so nothing else in the add-on gets an opinion about what a missing
  # `maintenance_*` key means. There is exactly ONE in-code copy -
  # `app/maintenance.py`'s `MAINT_OPTION_DEFAULTS` - because the Dockerfile does
  # not put this file in the image and the running add-on therefore cannot read
  # it; test_maintenance.py pins that copy by READING these lines, so a drift
  # goes red in CI rather than shipping. main.py and validate.py both read the
  # mirror and type no number of their own.
  #
  # Before this card the same defaults were written down three times and had
  # already disagreed: this block said 2000 while main.py and MaintConfig said
  # 2500, so an options dict with the key ABSENT passed validation at 2000 and
  # then ran at 2500 against a 2000 W ceiling - a silent 0 W arbiter
  # contradiction. Changing one of these numbers now moves every consumer.
  maintenance_enabled: false
  maintenance_interval_days: 28
  maintenance_start_hour: 10

  # ⚠️ BOTH MUST STAY AT OR BELOW max_w, and that is why they are 2000 rather
  # than the 2500 they shipped as. The cheap-window charge shaping asks the
  # arbiter for `hi = -maintenance_charge_w` against the supervised `lo =
  # -max_w`: above the ceiling that is `lo > hi`, a contradiction resolved to
  # 0 W, so maintenance would SILENTLY NEVER CHARGE in a cheap window on a
  # default install. validate.py refuses that config (rule 6), so these
  # defaults had to become self-consistent with the max_w above rather than
  # ship a configuration the validator rejects.
  #
  # The discharge side is clamped rather than contradicted - it drains at max_w
  # and the arbiter says so - so it is only warned about; it is 2000 here for
  # symmetry and to keep the shipped config warning-free.
  #
  # Raising max_w (the live reference install runs 5000) is what unlocks a
  # faster maintenance cycle. Raise max_w FIRST, then these.
  maintenance_discharge_w: 2000
  maintenance_charge_w: 2000
  maintenance_soc_floor: 11
  maintenance_soc_target: 99
  maintenance_hold_min: 120

  # ==========================================================================
  # SAFETY - DERIVED CONSTANTS. Every number below was measured. Do not change
  # one without re-deriving it
  # ==========================================================================
  # Trips when the emitted setpoint and the P1 net figure point OPPOSITE ways,
  # both over sign_disagree_w, continuously for sign_disagree_s. Action: 0 W and
  # a failsafe that latches until an operator starts control again.
  #
  # Both defaults are measured, not chosen. On the captured healthy day
  # (2026-08-23) the longest legitimate opposed run - a load step the loop has
  # not caught up with - is 30 s, and sign agreement over the gated samples is
  # 93.4 %. On the captured fault day (2026-08-20) the clusters run 0.0-10.5 %
  # agreement with opposed runs up to 1752 s. 300 W / 180 s sits in the middle of
  # a very wide gap: at 60 s the healthy day still trips nothing, at 300 s the
  # fault day still trips 13 times. There is no reason to move either number
  # without a capture that says so. They are options because the AC says
  # thresholds are defaults rather than constants - not because they are knobs
  # anyone is expected to turn.
  #
  # ⚠️ sign_disagree_w must stay BELOW max_w or the watchdog can never fire (the
  # arbiter bounds the command to +-max_w). validate.py refuses that config.
  sign_disagree_w: 300
  sign_disagree_s: 180

  # ⚠️ A DIFFERENT COMPARISON, NOT A SECOND COPY OF THE ONE ABOVE, AND IT IS
  # ARMED ONLY WHEN THIS SITE HAS MORE THAN ONE INVERTER. The pair above grades
  # the SITE's total command against P1 - one meter, one grid connection. This
  # pair grades EACH inverter's own share against THAT inverter's own measured
  # power (holding register 0x0518), and it catches the fault the meter cannot
  # answer for once there are two units: a unit doing the opposite of what it
  # was told, while its sibling covers for it and P1 reads exactly what a
  # healthy site reads.
  #
  # At ONE inverter these two keys do nothing at all. §6.2's identity makes the
  # site's total command that inverter's command, so the pair above is already
  # asking this question of the same actuator, and arming a second detector
  # would be two latches and two banners for one fault.
  #
  # Both defaults are measured on admin/goodwe's two-master rig, over 1890
  # closed-loop runs in which nothing is faulty, swept across the whole range
  # this file accepts for `gain` and `slew_w`. 250 W is `saturation_w / 2`, so
  # the smallest divergence this can see is exactly the gap at which the control
  # law itself already says the inverter is not following; 85 s is 8.5x the
  # worst legitimate opposition those runs produce (10.0 s), 2.8x the firmware's
  # own 30 s link veto, and under half the 180 s the site check takes. See
  # app/watchdog.py's SIGN_OPTION_DEFAULTS and
  # DECISIONS/SAFETY-30-per-unit-sign.md.
  #
  # ⚠️ unit_sign_disagree_w must stay BELOW max_w, for sign_disagree_w's reason:
  # a share is bounded to +-max_w, so a threshold at or above it can never fire.
  # validate.py refuses that config.
  unit_sign_disagree_w: 250
  unit_sign_disagree_s: 85

  # ⚠️ THE SAME COMPARISON `sign_disagree_*` MAKES, AT THE ROSTER WHERE IT STOPS
  # BEING A STATEMENT ABOUT ONE INVERTER. At two or more units the SUM of the
  # standing commands is graded against P1, and the trip stops the whole site -
  # what it catches is the site being asked for the wrong thing, which every
  # per-inverter check is blind to because each unit is faithfully executing its
  # share. At ONE inverter these two keys do nothing: `sign_disagree_*` above is
  # already asking this of the same actuator.
  #
  # The threshold is the shipped 300 W, CARRIED, and the reason is that the
  # argument behind it does not depend on the roster: near zero the sign is
  # noise, the deadband is 15 W, and there is one P1 whatever is behind it.
  #
  # ⚠️ THE WINDOW IS NOT CARRIED, AND THAT IS A MEASUREMENT. The transient 180 s
  # exists to reject is the loop crossing zero after a load reversal, and the
  # command has to travel the whole SITE rail at `slew_w` per cycle - a rail
  # that is the roster sum while `slew_w` is not. On 1890 two-inverter runs in
  # which nothing is faulty, the worst continuous legitimate opposition at 300 W
  # is 110 s at one inverter and 215 s at two: carrying 180 s across would have
  # shipped a false trip reachable at `gain: 0.05`, `slew_w: 50` and an ordinary
  # 2.2 kW load reversal. 325 s is 1.51x that, inside the 900 s billing quarter,
  # and still inside every episode of the 2026-08-20 fault day.
  site_sign_disagree_w: 300
  site_sign_disagree_s: 325

  # Seconds the meter may keep answering with an UNCHANGED measurement while the
  # command stands at the rail before the add-on raises an alarm. Both halves
  # are required: neither one alone is safe, and app/freeze.py carries why.
  #
  # ALARM ONLY. It does not command 0 W and does not latch. A false trip parks
  # the battery; a false notification costs an alert.
  #
  # ⚠️ Only `meter_source: homewizard_local` can see this at all - it is the
  # only transport that reads the meter's own document. On every other source
  # the status page says NOT COVERED rather than "armed".
  #
  # 300 s is measured, not chosen. Over 2399 s of the live house at the
  # converged operating point (sim/scenarios/p1-age-2026-08-26.jsonl.gz, mean
  # grid -14.2 W, 1194 polls, 735 of them repeating the previous reading) the
  # LONGEST run without a distinct reading is 15.4 s (the largest unchanged_s any
  # sample observes is 8.0 s). 300 s is 19.5x the pessimistic figure, and
  # still inside the 900 s quarter that bills the capacity tariff.
  meter_freeze_s: 300

  # ⚠️ CFG-03. THESE TWO LINES ARE THE SOURCE OF TRUTH FOR THESE DEFAULTS, and
  # `app/circulation.py`'s `CIRC_OPTION_DEFAULTS` is the ONE in-code copy - the
  # Dockerfile does not put this file in the image, so the running add-on cannot
  # read it. test_watchdog.py pins the copy by READING these lines, so a drift
  # goes red in CI rather than shipping. Add a third option in three places -
  # options:, schema:, CIRC_OPTION_DEFAULTS - and in no fourth.
  #
  # Circulating power is sum(|Bi|) - |sum(Bi)| over MEASURED per-inverter power:
  # two inverters pushing against each other, which NETS TO ZERO AT THE METER
  # and is therefore invisible to every other guard in this add-on. Both numbers
  # below were measured on the TEST-19 two-master rig over 924 closed-loop runs
  # in which nothing was faulty; circulation.py carries the curve they were read
  # off and the argument for each. They are NOT sensitivity preferences.
  #
  # Both are ignored at one inverter, where the quantity is identically zero.
  circulation_w: 700
  circulation_hold_s: 75

  # ==========================================================================
  # ADVANCED - the control law and diagnostics
  # ==========================================================================
  auto_start: false
  gain: 0.6
  slew_w: 1000
  deadband_w: 15
  target_grid_w: -10
  step_w: 10
  saturation_w: 500
  saturation_cycles: 3
  integrator_max_w: 0
  heartbeat_s: 10
  stale_input_s: 15
  cycle_floor_s: 15
  log_level: info

schema:
  # ==========================================================================
  # HARDWARE - the inverter, its actuator and its own sensors
  # ==========================================================================
  setpoint_entity: str
  soc_entity: str
  batt_entity: str
  batt_invert: bool

  # CFG-04. THE ONE LIST-OF-OBJECTS IN THIS FILE, and see the options block for
  # the measurement that says Supervisor 2026.08.0 accepts it: nested types are
  # enforced per entry, a missing required key names the key, a scalar where the
  # list belongs is refused, and the UI renders it as a repeatable section.
  #
  # ⚠️ THREE KEYS ARE REQUIRED PER ENTRY AND THAT IS DELIBERATE. An entry with
  # no `name` has no Store namespace and would share another unit's SAFETY-02
  # latch; one with no `setpoint_entity` is a unit nothing can command; one with
  # no `max_w` would have to borrow a rating, which is the sibling-grading
  # defect DEV-02 removed. The optional pair is the sensors, whose absence
  # honestly means "this unit reports none".
  #
  # ⚠️ THIS BLOCK IS DECLARED BEFORE `max_w:` ON PURPOSE. `max_w` now appears
  # TWICE under `schema:` - once nested here, once flat below - and a reader
  # that matches a stripped line takes the nested one FIRST. That is the
  # first-match trap this card had to fix in three checks; leaving the nesting
  # first keeps the trap baited, so the fix stays graded rather than assumed.
  # test_inverter.py part 12 asserts the ordering is still hostile.
  inverters:
    - name: str
      setpoint_entity: str
      max_w: int(100,5000)
      bms_soc_floor: int(0,50)
      soc_entity: str?
      batt_entity: str?
      batt_invert: bool?

  estop_fitted: bool

  # ==========================================================================
  # METER - where the grid reading comes from
  # ==========================================================================
  meter_source: list(off|ha_dsmr|mqtt_p1|ha_signed|homewizard_local)
  meter_entity: str
  meter_invert: bool

  # ⚠️ 2 is accepted by this range but is not a real Belgian connection. A
  # telegram whose phase count disagrees is rejected at ingest and logged, so a
  # mis-set 2 shows up immediately as "0 telegrams accepted" rather than as a
  # quietly wrong number.
  meter_phases: int(1,3)
  p1_host: str?
  meter_poll_s: int(1,60)
  meter_max_age_s: int(5,300)
  meter_mqtt_topic: str?
  p1_import_entity: str?
  p1_export_entity: str?
  p1_net_entity: str?
  p1_phase_import_entities:
    - str

  p1_phase_export_entities:
    - str

  p1_phase_net_entities:
    - str

  # ==========================================================================
  # RATINGS AND LIMITS - what this site is allowed to do
  # ==========================================================================
  max_w: int(100,5000)
  bms_soc_floor: int(0,50)
  peak_cap_w: int(500,15000)
  peak_forecast_entity: str?

  # SAFETY-24. No "off" value: a guard that can command a discharge does not get
  # a supported way to have no energy bound at all. The ranges OVERLAP on
  # purpose - the schema cannot express "above bms_soc_floor", so validate.py
  # rule 8 is what refuses the pair, with a message naming both numbers.
  peak_soc_floor: int(5,60)

  # ==========================================================================
  # TARIFF - what energy costs, and whether to trade on it
  # ==========================================================================
  # ⚠️ The provider list is written out rather than left as `str`, so the
  # Supervisor rejects a typo in the UI. validate.py ALSO refuses an unknown id
  # against app/price.py's PROVIDERS registry, because sim/inject.py and the
  # checks reach validate_startup_config() with a dict the Supervisor never saw.
  # Adding a sixth plugin means adding it here and to PROVIDERS - and nowhere
  # else, which is AC2.
  price_provider: list(off|generic_dayahead|engie_dynamic|totalenergies_dynamic|eneco_eddy|manual_csv)
  price_markup_eur_kwh: float(0,1)
  price_taxes_eur_kwh: float(0,1)

  # ⚠️ The lower bound is NEGATIVE on purpose. Belgian injection tariffs have
  # gone below zero (you pay to export at midday in summer), and a schema that
  # bottoms out at 0 would make that site inexpressible.
  export_price_eur_kwh: float(-1,1)

  # A JSON string rather than a nested schema, deliberately: it is ONE option
  # key (§14 has one), it survives config.yaml's flat options block, and
  # parse_static_profile() accepts an already-parsed dict too, so a future
  # nested schema is a config.yaml change and no code change at all.
  static_profile: str?
  price_csv_path: str?
  price_feed_url: str?
  price_horizon_h: int(1,72)
  price_timeout_s: int(2,60)
  price_now_entity: str?
  price_avg_entity: str?

  # OPT-04. ⚠️ The threshold's lower bound is 0 and not negative: it is a COST,
  # and a negative one is a threshold every spread clears - arbitrage with the
  # brake removed. app/arbitrage.py refuses it in code too, because
  # validate_startup_config() is also sim/inject.py's entry point and can be
  # handed any dict at all.
  arbitrage_enabled: bool
  cycle_cost_threshold_eur: float(0,1)
  arbitrage_soc_floor: int(5,95)
  arbitrage_soc_ceiling: int(10,100)

  # ==========================================================================
  # MAINTENANCE - the monthly battery recalibration cycle
  # ==========================================================================
  # ⚠️ CFG-03 - THIS IS WHERE A RANGE LIVES, AND THE ONLY PLACE IT LIVES. The
  # `options:` block above holds the DEFAULT; this block holds the BOUNDS, and
  # `MAINT_OPTION_DEFAULTS` deliberately mirrors the former and not the latter -
  # the Supervisor is what enforces a range and the Supervisor reads only this
  # file, so a second copy of `int(500,5000)` in Python would be a place to
  # disagree and nothing else. What is NOT expressible here is a relation
  # BETWEEN keys: `maintenance_charge_w` must also stay at or below `max_w`, the
  # schema grammar has no way to say so, and that is why validate.py's rule 6 is
  # written in code instead. Add a ninth maintenance option in three places -
  # options:, schema:, MAINT_OPTION_DEFAULTS - and in no fourth.
  maintenance_enabled: bool
  maintenance_interval_days: int(1,90)
  maintenance_start_hour: int(0,23)
  maintenance_discharge_w: int(500,5000)
  maintenance_charge_w: int(500,5000)
  maintenance_soc_floor: int(5,30)
  maintenance_soc_target: int(50,100)
  maintenance_hold_min: int(5,480)

  # ==========================================================================
  # SAFETY - DERIVED CONSTANTS. Every number below was measured. Do not change
  # one without re-deriving it
  # ==========================================================================
  # No "off" value, deliberately: this is a P0 safety check and the schema is
  # not the place to make disarming it a supported configuration.
  sign_disagree_w: int(50,5000)
  sign_disagree_s: int(30,1800)

  # SAFETY-30. No "off" value, for SAFETY-02's reason.
  #
  # ⚠️ THE THRESHOLD'S RANGE IS THE SAME AS THE SITE CHECK'S ON PURPOSE, AND THE
  # WINDOW'S FLOOR IS NOT. On the two-inverter rig the per-unit comparison's
  # worst continuous legitimate opposition is nearly FLAT in the threshold -
  # 25.0 s at 50 W, 15.0 s at 150 W, 10.0 s at 250 W, 5.0 s at 500 W - because a
  # unit's own power chases its own command rather than the load. So no value in
  # this range puts the guard outside the regime it can be answered for, and the
  # floor does not have to be a knee the way `circulation_w`'s does.
  unit_sign_disagree_w: int(50,5000)

  # The floor of 30 is `inverter.LINK_STALE_S`, the firmware's own veto window:
  # below it, a unit not executing its share is a LINK fault the add-on already
  # answers by dropping the unit from the split, and firing inside that window
  # would be a second, louder alarm about a state that is already being handled.
  unit_sign_disagree_s: int(30,1800)

  # SAFETY-30's SITE pair. Same ranges as `sign_disagree_*`, because it is the
  # same comparison asked of the site total - and no "off" value, for the same
  # reason. ⚠️ THERE IS DELIBERATELY NO validate.py RULE PAIRING
  # site_sign_disagree_w WITH max_w, unlike the other two thresholds: the bound
  # on the SITE command is `Controller.site_max_w`, the ROSTER SUM, and
  # `validate_startup_config()` is handed options rather than a roster. A rule
  # written against max_w would refuse a perfectly reachable two-inverter
  # configuration the day CFG-04 lands. The schema range is the bound here.
  site_sign_disagree_w: int(50,5000)
  site_sign_disagree_s: int(30,1800)

  # No "off" value, for SAFETY-02's reason: disarming a safety alarm is not a
  # supported configuration. ⚠️ THE FLOOR OF 60 IS NOT A RECOMMENDATION. At 300 s
  # the slowest a HEALTHY meter's 1 Wh register can tick and still look unchanged
  # is 12 W, which is inside the 15 W deadband, so the two terms of the
  # conjunction are mutually exclusive rather than merely far apart. At 60 s that
  # figure is 60 W and the argument is gone - only the margin is left. See
  # app/freeze.py.
  meter_freeze_s: int(60,3600)

  # SAFETY-31. No "off" value, for SAFETY-02's and meter_freeze_s's reason:
  # disarming a safety alarm is not a supported configuration.
  #
  # ⚠️ THE FLOOR OF 400 IS NOT A RECOMMENDATION, IT IS THE MEASURED EDGE OF THE
  # REGIME IN WHICH THIS GUARD CAN BE ANSWERED FOR. On the TEST-19 rig, the
  # worst CONTINUOUS opposition produced by a site where nothing is faulty - a
  # flapping load reversing every control cycle, swept over the whole range this
  # schema accepts for `gain` and `slew_w` - is 5.0 s at a 400 W threshold and
  # above, 10.0 s at 300 W, 40.0 s at 250 W and 505.0 s at 100 W. Below the
  # knee, legitimate operation holds the sensor over the threshold for MINUTES
  # and no window shorter than the 900 s billing quarter could tell that from a
  # fault. A configurable value under 400 W would be a false-alarm generator
  # that this project's own doctrine (SAFETY-15, SAFETY-19) forbids shipping.
  circulation_w: int(400,5000)

  # The floor of 30 is `inverter.LINK_STALE_S`: below the firmware's own veto
  # window a unit still executing a stale share is a LINK fault the add-on
  # already handles by dropping it from the split, and firing inside that window
  # would raise a second, louder alarm about a state already being managed. The
  # ceiling of 900 is the quarter that bills the capacity tariff - a circulating
  # loop must be caught and acted on well inside one.
  circulation_hold_s: int(30,900)

  # ==========================================================================
  # ADVANCED - the control law and diagnostics
  # ==========================================================================
  auto_start: bool
  gain: float(0.05,1.0)
  slew_w: int(50,5000)
  deadband_w: int(0,500)
  target_grid_w: float(-200,200)
  step_w: int(1,100)
  saturation_w: int(100,2000)
  saturation_cycles: int(1,10)
  integrator_max_w: int(0,15000)
  heartbeat_s: int(2,25)
  stale_input_s: int(5,120)
  cycle_floor_s: int(5,60)
  log_level: list(trace|debug|info|warning|error)