feat: Implement 3-year average EAF and CF history tracking to adjust net capacity factor calculation.

src/modules/plant/run_plant_simulation.py

@@ -398,7 +398,8 @@ def main():
         cost_a_depreciation = 0
         net_capacity_factor_v = 0
         eaf_v = 0
-
+        eaf_history = []
+        cf_history = []
         # Prefetch master data CF dan EAF sekali saja di luar loop
         cur.execute("""
                     SELECT year as tahun, cf, eaf
@@ -424,6 +425,15 @@ def main():
                 net_capacity_factor_v = 0
                 eaf_v = 0
 
+            # rata-rata 3 tahun terakhir untuk net_capacity_factor
+            eaf_history.append(eaf_v)
+            cf_history.append(net_capacity_factor_v)
+            last_3_eaf = eaf_history[-3:]
+            last_3_cf = cf_history[-3:]
+            avg_eaf_3 = sum(last_3_eaf) / len(last_3_eaf) if last_3_eaf else 0
+            avg_cf_3 = sum(last_3_cf) / len(last_3_cf) if last_3_cf else 0
+            selisih_eaf_cf = abs(avg_cf_3 - avg_eaf_3)
+
             if data["is_actual"] == 1:
                 production_bruto = validate_number(data["production_bruto"])
                 production_netto = validate_number(data["production_netto"])
@@ -437,6 +447,8 @@ def main():
                 cost_bd_om = validate_number(data["cost_bd_om"])
                 cost_bd_pm_nonmi = validate_number(data["cost_bd_pm_nonmi"])
                 cost_bd_bd = validate_number(data["cost_bd_bd"])
+                net_capacity_factor = net_capacity_factor_v
+                eaf = eaf_v
             else:
                 production_netto = net_capacity_factor * 8760 * daya_mampu_netto / 100
                 production_bruto = production_netto / (100 - (auxiliary + susut_trafo)) * 100
@@ -457,8 +469,8 @@ def main():
                     cost_bd_pm_nonmi = cost_bd_pm_nonmi
                     cost_bd_bd = cost_bd_bd
 
-            net_capacity_factor = net_capacity_factor_v
             eaf = eaf_v
+            net_capacity_factor = eaf_v - selisih_eaf_cf
 
             # ++++++ REVENUE +++++++
             revenue_total = revenue_a + revenue_b + revenue_c + revenue_d