diff --git a/docs/source/cmpb/cmpb-config.rst b/docs/source/cmpb/cmpb-config.rst
index 5a4644b..20ee772 100644
--- a/docs/source/cmpb/cmpb-config.rst
+++ b/docs/source/cmpb/cmpb-config.rst
@@ -130,6 +130,13 @@ Below, the configuration file with the underlying defaults, is displayed.
     # Additionally, remove unused metabolites (possibly reduces knowledge-base)
     remove_unused_metabs: False
 
+    # Finding and solvong Energy Generating Cycles (EGCs)
+    # ---------------------------------------------------
+    EGCs:
+    solver: NULL # solver gives the algorithm to use for solving EGCs
+                # if NULL, only searches for EGCs without trying to solve them
+                # options include: greedy
+
     # BOFdat / Biomass objective function
     # -----------------------------------
     BOF:
diff --git a/src/specimen/cmpb/workflow.py b/src/specimen/cmpb/workflow.py
index ec1eb4c..358793a 100644
--- a/src/specimen/cmpb/workflow.py
+++ b/src/specimen/cmpb/workflow.py
@@ -34,9 +34,16 @@
 from refinegems.utility.connections import run_memote, perform_mcc, adjust_BOF, run_SBOannotator
 from refinegems.utility.io import load_model, write_model_to_file
 from refinegems.developement.decorators import implement
+from refinegems.classes import egcs
 
 from ..util.set_up import save_cmpb_user_input, validate_config
 
+################################################################################
+# setup logging
+################################################################################
+# general logging
+logger = logging.getLogger(__name__)
+
 ################################################################################
 # functions
 ################################################################################
@@ -149,6 +156,14 @@ def between_analysis(model: Model, cfg:dict, step:str):
     # ----------
     today = date.today().strftime("%Y%m%d")
     log_file = Path(dir, 'cmpb_out', 'logs', f'specimen_cmpb_{str(today)}.log')
+    handler = logging.handlers.RotatingFileHandler(log_file, 
+                                                    mode='w', 
+                                                    backupCount=10, 
+                                                    encoding='utf-8', 
+                                                    delay=0)
+    handler.setFormatter(logging.Formatter("{levelname} \t {name} \t {message}", 
+                                           style="{",))
+    logger.addHandler(handler)
 
     # CarveMe
     #########
@@ -409,7 +424,27 @@ def between_analysis(model: Model, cfg:dict, step:str):
     # in-between testing
     between_growth_test(current_model,config,step='after_duplicate_removal')
     between_analysis(current_model,config,step='after_duplicate_removal')
-
+    
+    # find and solve energy generating cycles
+    # ---------------------------------------
+    current_model = load_model(str(current_modelpath),'cobra')
+    match config['EGCs']['solver']:
+        # greedy solver
+        case 'greedy':
+            print('Using GreedyEGCSolver...')
+            solver = egcs.GreedyEGCSolver()
+            results = solver.solve_egcs(current_model,namespace=config['general']['namespace']) # @NOTE automatically uses c,p as compartments 
+            if results:
+                logger.info('results:')
+                for k,v in results.items():
+                    logger.info(f'\t{k}: {v}')
+        
+        # no solver = EGCs will only be reported
+        case _:
+            solver = egcs.EGCSolver()
+            logger.info(f'\tFound EGCs:\n')
+            logger.info(f'\t{solver.find_egcs(current_model,with_reacs=True,namespace=config['general']['namespace'])}') # @NOTE automatically uses c,p as compartments 
+            
     # BOF
     # ---
     # BOFdat - optional
diff --git a/src/specimen/data/config/cmpb_config.yaml b/src/specimen/data/config/cmpb_config.yaml
index a20dbd5..5ac4ff0 100644
--- a/src/specimen/data/config/cmpb_config.yaml
+++ b/src/specimen/data/config/cmpb_config.yaml
@@ -133,6 +133,13 @@ duplicates:
   # Additionally, remove unused metabolites (possibly reduces knowledge-base)
   remove_unused_metabs: False
 
+# Finding and solvong Energy Generating Cycles (EGCs)
+# ---------------------------------------------------
+EGCs:
+  solver: NULL # solver gives the algorithm to use for solving EGCs
+               # if NULL, only searches for EGCs without trying to solve them
+               # options include: greedy
+
 # BOFdat / Biomass objective function
 # -----------------------------------
 BOF:
diff --git a/src/specimen/util/set_up.py b/src/specimen/util/set_up.py
index 51fc6e6..3d53783 100644
--- a/src/specimen/util/set_up.py
+++ b/src/specimen/util/set_up.py
@@ -619,6 +619,11 @@ def save_cmpb_user_input(configpath:Union[str,None]=None) -> dict:
             config['duplicates']['remove_unused_metabs'] = True
         case 'n':
             config['duplicates']['remove_unused_metabs'] = False
+            
+    # handling EGCs
+    egc_solver = click.prompt('Choose a solver (or none) for handling energy generating cycles.', type=click.Choice(['none','greedy']), show_choices=True)
+    if egc_solver == 'none':
+        egc_solver = None
 
     # @TODO: Ask for any biomass correction
     # BOF