dalsi

backend/services/planning_engine.py

@@ -71,7 +71,7 @@ NEG_BUY_CHARGE_SHORTFALL_PENALTY_CZK_KWH = 100.0
 PRE_NEG_CHARGE_PENALTY_CZK_KWH = 400.0
 PRE_NEG_BATT_EXPORT_SHORTFALL_PENALTY_CZK_KWH = 80.0
 PRE_NEG_BATT_EXPORT_MIN_SELL_CZK_KWH = 1.0
-PLANNER_BUILD_TAG = "2026-06-01-spot-grid-charge-at-acq-buy-v61"
+PLANNER_BUILD_TAG = "2026-06-01-kv1-fixed-night-self-consume-v62"
 # Ranní slabá FVE: neaplikovat pv_store ge_pv=0 (jinak curtail při sell < večerní peak).
 DAWN_LOW_PV_NO_CURTAIL_W = 1500
 # BA81/KV1: PV→bat jen v těsné blízkosti nejnižšího sell v horizontu (≈ poledne), ne při ~3 Kč ráno.
@@ -1833,10 +1833,12 @@ def _night_self_consume_discourage_import_indices(
     evening_push_ts: set[int],
     charge_acquisition_czk_kwh: float,
     min_spread: float,
+    purchase_fixed: bool = False,
 ) -> set[int]:
     """
     Noční sloty mimo evening_push: penalizace importu pro dům (preferovat bd).
     v45: celé noční okno, ne jen evening_early_export_ban subset.
+    KV1: buy ≈ acq (konstantní ~6,35) — jinak prázdná množina, síť místo baterie v noci.
     """
     out: set[int] = set()
     for t, s in enumerate(slots):
@@ -1844,11 +1846,15 @@ def _night_self_consume_discourage_import_indices(
             continue
         if not _in_night_battery_export_window(s):
             continue
-        buy_t = float(s.buy_price)
-        if buy_t <= float(charge_acquisition_czk_kwh) + float(min_spread):
-            continue
         if float(s.load_baseline_w) <= 0:
             continue
+        buy_t = float(s.buy_price)
+        if purchase_fixed:
+            if buy_t >= 0.0:
+                out.add(t)
+            continue
+        if buy_t <= float(charge_acquisition_czk_kwh) + float(min_spread):
+            continue
         out.add(t)
     return out
 
@@ -2836,6 +2842,7 @@ def solve_dispatch(
             evening_push_ts=evening_push_ts,
             charge_acquisition_czk_kwh=charge_acquisition_czk_kwh,
             min_spread=float(degradation_cost_effective),
+            purchase_fixed=purchase_fixed_pre,
         )
         post_evening_push_night_ts = _post_evening_push_night_self_consume_indices(
             slots, evening_push_ts
@@ -4123,7 +4130,10 @@ def solve_dispatch(
             # Spot (home-01): buy > min ne-záporného buy v horizontu.
             # Fixní tarif (KV1): navíc buy > charge_acquisition (konstantní buy ≈ ref).
             expensive_import_slot = buy_t > ref_buy_horizon + min_spread
-            if fixed_tariff_like_pre:
+            if purchase_fixed_pre and buy_t >= 0.0:
+                # KV1/BA81: buy skoro konstantní — buy > acq nikdy neplatí, jinak v noci import za 6 Kč.
+                expensive_import_slot = True
+            elif fixed_tariff_like_pre:
                 expensive_import_slot = expensive_import_slot or (
                     buy_t > charge_acquisition_czk_kwh + min_spread
                 )