fix infeasable

backend/services/planning_engine.py

@@ -1168,14 +1168,21 @@ def solve_dispatch(
                 0.0,
                 float(s.pv_a_forecast_w) + float(s.pv_b_forecast_w) - load_neg,
             )
-            # FVE→síť při záporném výkupu jen nucený vent (plná baterie); jinak bc_pv / load-first.
-            if not _pv_forced_vent_export_allowed(
-                t,
-                current_soc_wh=current_soc_wh,
-                battery=battery,
-                soc_headroom_wh=soc_headroom_wh,
-                pv_surplus_w=pv_surplus_neg_w,
-            ):
+            # FVE→síť při záporném výkupu: u KV1 (block_export) jen bc/curtail A;
+            # u home-01 s polem B musí přebytek jít do sítě (ge_pv), jinak infeasible.
+            block_pv_export_neg_sell = bool(
+                getattr(grid, "block_export_on_negative_sell", False)
+            ) or (
+                float(s.pv_b_forecast_w) <= 0
+                and not _pv_forced_vent_export_allowed(
+                    t,
+                    current_soc_wh=current_soc_wh,
+                    battery=battery,
+                    soc_headroom_wh=soc_headroom_wh,
+                    pv_surplus_w=pv_surplus_neg_w,
+                )
+            )
+            if block_pv_export_neg_sell:
                 prob += ge_pv[t] == 0
             # Tvrdý zákaz celého vývozu (GEN / fixní nákup bez pole B).
             block_neg_sell_export = bool(
@@ -1306,7 +1313,6 @@ def solve_dispatch(
         # Ekonomické guardy: ceny v objective nestačí proti maskám / terminal SoC.
         ref_buy_horizon = min(float(s.buy_price) for s in slots)
         min_spread = float(degradation_cost_effective)
-        hp_rated_w = float(heat_pump.rated_heating_power_w)
         for t in range(T):
             s = slots[t]
             buy_t = float(s.buy_price)
@@ -1330,8 +1336,13 @@ def solve_dispatch(
                 and sell_t >= 0
             )
             pv_store_val = _pv_store_value_czk_kwh(s, min_spread)
+            skip_pv_store_block = (
+                float(s.pv_b_forecast_w) > 0
+                and not getattr(grid, "block_export_on_negative_sell", False)
+            )
             if (
                 not allow_pre_neg_pv_export
+                and not skip_pv_store_block
                 and sell_t < pv_store_val
                 and not _pv_forced_vent_export_allowed(
                     t,
@@ -1348,11 +1359,13 @@ def solve_dispatch(
                 buy_t > charge_acquisition_czk_kwh + min_spread
             )
             if expensive_import_slot and t not in charge_slots:
-                prob += gi[t] <= ev_cap_t + hp_rated_w
+                # Síť jen pro EV + skutečný výkon TČ v tomto slotu (hp[t]), ne celý dům.
+                prob += gi[t] <= ev_cap_t + hp[t]
                 if om == "AUTO":
+                    # Bazál + TČ z baterie/FVE; hp[t] může být 0 — nesmí se použít hp_rated (infeasible).
                     prob += (
                         bd[t] + pv_ld[t]
-                        >= float(s.load_baseline_w) + hp_rated_w
+                        >= float(s.load_baseline_w) + hp[t]
                     )
             # Anti souběžný vývoz FVE + významný import (mikrocyklus).
             if buy_t > sell_t + min_spread and pv_surplus_w > 0:

backend/tests/test_planning_dispatch_milp.py

@@ -1192,6 +1192,57 @@ class AutoPassiveSelfConsumptionTests(unittest.TestCase):
         self.assertLessEqual(results[0].grid_setpoint_w, 0)
         self.assertLess(results[0].battery_setpoint_w, -100)
 
+    def test_expensive_slot_uses_hp_variable_not_rated(self) -> None:
+        """Regrese: bd+pv_ld >= load+hp[t], ne load+hp_rated (jinak Infeasible bez PV)."""
+        slots = [
+            PlanningSlot(
+                interval_start=datetime(2026, 5, 22, 20, 0, tzinfo=timezone.utc),
+                buy_price=3.0,
+                sell_price=2.0,
+                pv_a_forecast_w=0,
+                pv_b_forecast_w=0,
+                load_baseline_w=1961,
+                ev1_connected=False,
+                ev2_connected=False,
+                allow_charge=False,
+                allow_discharge_export=False,
+                charge_acquisition_buy_czk_kwh=0.52,
+            ),
+            PlanningSlot(
+                interval_start=datetime(2026, 5, 22, 20, 15, tzinfo=timezone.utc),
+                buy_price=-5.0,
+                sell_price=2.0,
+                pv_a_forecast_w=0,
+                pv_b_forecast_w=0,
+                load_baseline_w=1961,
+                ev1_connected=False,
+                ev2_connected=False,
+                allow_charge=False,
+                allow_discharge_export=False,
+                charge_acquisition_buy_czk_kwh=0.52,
+            ),
+        ]
+        battery = _battery(uc_wh=64_000.0, min_pct=12.0, arb_pct=20.0)
+        battery.planner_terminal_soc_value_factor = 0.0
+        hp = SimpleNamespace(rated_heating_power_w=3500, tuv_min_temp_c=45.0, tuv_target_temp_c=55.0)
+        grid = SimpleNamespace(max_import_power_w=17_000, max_export_power_w=13_500)
+        vehicles = [
+            SimpleNamespace(max_charge_power_w=0, battery_capacity_kwh=1.0, default_target_soc_pct=80.0),
+            SimpleNamespace(max_charge_power_w=0, battery_capacity_kwh=1.0, default_target_soc_pct=80.0),
+        ]
+        results, _, _ = solve_dispatch(
+            slots,
+            battery,
+            hp,
+            grid,
+            [None, None],
+            vehicles,
+            20_000.0,
+            50.0,
+            operating_mode="AUTO",
+        )
+        self.assertEqual(len(results), 2)
+
 
 class AutoPassiveNoLoadFollowingDischargeTests(unittest.TestCase):
     """AUTO bez allow_discharge_export: žádný export do sítě (Deye PASSIVE)."""