fix spravneho prodeje do site

backend/services/planning_engine.py

@@ -68,7 +68,7 @@ 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 = "2026-05-28-evening-peak-full-export-v27"
+PLANNER_BUILD_TAG = "2026-05-28-evening-peak-full-export-v28"
 POS_SELL_PRE_NEG_SOC_SHORTFALL_PENALTY_CZK_PER_WH = 0.30
 PRE_NEG_BUY_SOC_CEILING_SLACK_PENALTY_CZK_PER_WH = 0.25
 PRE_NEG_BUY_EMPTY_EXPORT_SHORTFALL_PENALTY_CZK_KWH = 80.0
@@ -820,8 +820,9 @@ def _evening_push_battery_export_w(
     grid: Any,
 ) -> float:
     """
-    Nejvyšší ge_bat v push slotu při drahém importu (gi≈0): bilance dá bd ≈ load + ge_bat,
-    tedy ge_bat + bd ≤ max_discharge → ge_bat ≤ (max_discharge − load) / 2.
+    Tvrdý push ge_bat: min(site/inverter export cap, BMS − load).
+    Stejná fyzika jako Deye SELL — load pokryje baterie, zbytek výkonu jde do sítě
+    (ne (max−load)/2 z dvojího započtení bd+ge_bat v LP).
     """
     cap = _battery_export_cap_w(battery, grid)
     load_w = max(0.0, float(slot.load_baseline_w))
@@ -829,10 +830,7 @@ def _evening_push_battery_export_w(
         0.0,
         float(battery.max_discharge_power_w) - load_w,
     )
-    if discharge_headroom <= 0.0:
-        return 0.0
-    export_from_balance = discharge_headroom / 2.0
-    return min(cap, discharge_headroom, export_from_balance)
+    return min(cap, discharge_headroom)
 
 
 def _dispatch_grid_setpoint_w(
@@ -2013,11 +2011,8 @@ def solve_dispatch(
                 slots[t_peak], battery, grid
             )
             if push_floor_w >= GE_MIN_EXPORT_W:
-                load_push_w = float(slots[t_peak].load_baseline_w)
                 prob += z_export[t_peak] == 1
                 prob += ge_bat[t_peak] >= push_floor_w
-                # Drahý import (gi≈0): bez bd ≥ load + ge_bat zůstane jen vybíjení do domu.
-                prob += bd[t_peak] + ge_bat[t_peak] >= load_push_w + push_floor_w
         # Ostatní profitable sloty: měkká shortfall penalizace (ne večerní push).
     if (
         last_pos_sell_pre_neg_buy is not None
@@ -2054,13 +2049,16 @@ def solve_dispatch(
 
         # Součet nabíjení z FVE + ze sítě nesmí překročit max_charge_power_w baterie.
         prob += bc_pv[t] + bc_gi[t] <= battery.max_charge_power_w
-        # Vybíjení do domu (bd) + export z baterie (ge_bat) sdílí jeden BMS limit.
-        prob += bd[t] + ge_bat[t] <= battery.max_discharge_power_w
         # Breaker: import ze site je tvrdě omezen (gi_over jen numerická pojistka).
         prob += gi[t] <= gi_upper
 
         if om == "AUTO":
             load_site_expr = float(s.load_baseline_w) + ev_total_t + hp[t]
+            # BMS: jedno vybíjení — bilance při gi≈0 dá bd≈load+ge_bat; bd+ge_bat≤max by export
+            # započítalo dvakrát ((max−load)/2). Exportní sloty: load+ge_bat; jinak bd≤max.
+            prob += bd[t] <= battery.max_discharge_power_w
+            if t in discharge_export_slots:
+                prob += load_site_expr + ge_bat[t] <= battery.max_discharge_power_w
             prob += pv_ld[t] + pv_sp[t] == pv_a_net + pv_b_effective
             prob += pv_ld[t] <= load_site_expr
             prob += pv_ld[t] <= pv_a_net + pv_b_effective
@@ -2090,6 +2088,7 @@ def solve_dispatch(
                 pv_a_net + pv_b_effective + gi[t] + bd[t]
                 == s.load_baseline_w + ev_total_t + hp[t] + bc_pv[t] + bc_gi[t] + ge[t]
             )
+            prob += bd[t] + ge_bat[t] <= battery.max_discharge_power_w
 
         prob += ge[t] == ge_pv[t] + ge_bat[t]
         # Baterie nesmí „přestrojit“ FVE export: jen z pv_sp (po load-first).