diff --git a/apps/el-gen/genesis_besu.py b/apps/el-gen/genesis_besu.py
index 350ed7f..9d35bce 100644
--- a/apps/el-gen/genesis_besu.py
+++ b/apps/el-gen/genesis_besu.py
@@ -210,6 +210,13 @@ def add_alloc_entry(addr, account):
     else:
         out['config']['cancunTime'] = 0
 
+    if 'blobSchedule' not in out['config']:
+        out['config']['blobSchedule'] = {}
+    out['config']['blobSchedule']['cancun'] = {
+        "target": data['target_blobs_per_block_cancun'],
+        "max": data['max_blobs_per_block_cancun']
+    }
+
 if 'electra_fork_epoch' in data:
     if data['electra_fork_epoch'] != 0:
         out['config']['pragueTime'] = \
@@ -219,6 +226,11 @@ def add_alloc_entry(addr, account):
     else:
         out['config']['pragueTime'] = 0
 
+    out['config']['blobSchedule']['prague'] = {
+        "target": data['target_blobs_per_block_prague'],
+        "max": data['max_blobs_per_block_prague']
+    }
+
 if 'fulu_fork_epoch' in data:
     if data['fulu_fork_epoch'] != 0:
         out['config']['osakaTime'] =  \
@@ -227,6 +239,11 @@ def add_alloc_entry(addr, account):
             int(data['fulu_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
     else:
         out['config']['osakaTime'] = 0
-    
+
+    out['config']['blobSchedule']['osaka'] = {
+        "target": data['target_blobs_per_block_osaka'],
+        "max": data['max_blobs_per_block_osaka']
+    }
+
 out['config']['ethash'] =  {}
 print(json.dumps(out, indent='  '))
diff --git a/apps/el-gen/genesis_chainspec.py b/apps/el-gen/genesis_chainspec.py
index 2d2e9b4..44d9197 100644
--- a/apps/el-gen/genesis_chainspec.py
+++ b/apps/el-gen/genesis_chainspec.py
@@ -261,6 +261,15 @@ def add_alloc_entry(addr, account):
         out['params']['eip1153TransitionTimestamp'] = 0
         out['params']['eip5656TransitionTimestamp'] = 0
         out['params']['eip6780TransitionTimestamp'] = 0
+    # If blobSchedule is not in the config, add it  
+    if 'blobSchedule' not in out['config']:
+        out['params']['blobSchedule'] = {}
+    
+    # if blobSchedule is in the config, add the cancun blobSchedule
+    out['params']['blobSchedule']['cancun'] = {
+            "target": data['target_blobs_per_block_cancun'],
+            "max": data['max_blobs_per_block_cancun']
+        }
 
 if 'electra_fork_epoch' in data:
     if data['electra_fork_epoch'] != 0:
@@ -283,6 +292,12 @@ def add_alloc_entry(addr, account):
         out['params']['eip7251TransitionTimestamp']= 0
         out['params']['eip7702TransitionTimestamp']= 0
 
+    # add the prague blobSchedule
+    out['params']['blobSchedule']['prague'] = {
+        "target": data['target_blobs_per_block_prague'],
+        "max": data['max_blobs_per_block_prague']
+    }
+
 if 'fulu_fork_epoch' in data:
     if data['fulu_fork_epoch'] != 0:
         out['params']['eip7692TransitionTimestamp'] = hex(
@@ -293,4 +308,9 @@ def add_alloc_entry(addr, account):
     else:
         out['params']['eip7692TransitionTimestamp'] = 0
 
+    # add the osaka blobSchedule
+    out['params']['blobSchedule']['osaka'] = {
+        "target": data['target_blobs_per_block_osaka'],
+        "max": data['max_blobs_per_block_osaka']
+    }
 print(json.dumps(out, indent='  '))
diff --git a/apps/el-gen/genesis_geth.py b/apps/el-gen/genesis_geth.py
index 5b9028c..423e8b3 100644
--- a/apps/el-gen/genesis_geth.py
+++ b/apps/el-gen/genesis_geth.py
@@ -198,7 +198,7 @@ def add_alloc_entry(addr, account):
             int(data['capella_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
     else:
         out['config']['shanghaiTime'] = 0
-        
+
 
 if 'deneb_fork_epoch' in data and not isNamedTestnet:
     if data['deneb_fork_epoch'] != 0:
@@ -208,6 +208,13 @@ def add_alloc_entry(addr, account):
             int(data['deneb_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
     else:
         out['config']['cancunTime'] = 0
+        
+    if 'blobSchedule' not in out['config']:
+        out['config']['blobSchedule'] = {}
+    out['config']['blobSchedule']['cancun'] = {
+        "target": data['target_blobs_per_block_cancun'],
+        "max": data['max_blobs_per_block_cancun']
+    }
 
 if 'electra_fork_epoch' in data:
     if data['electra_fork_epoch'] != 0:
@@ -218,8 +225,13 @@ def add_alloc_entry(addr, account):
     else:
         out['config']['pragueTime'] = 0
 
+    out['config']['blobSchedule']['prague'] = {
+        "target": data['target_blobs_per_block_prague'],
+        "max": data['max_blobs_per_block_prague']
+    }
+
 if 'fulu_fork_epoch' in data:
-    if data['fulu_fork_epoch'] != 0:   
+    if data['fulu_fork_epoch'] != 0:
         out['config']['osakaTime'] =  \
             int(data['genesis_timestamp']) + \
             int(data['genesis_delay']) + \
@@ -227,4 +239,9 @@ def add_alloc_entry(addr, account):
     else:
         out['config']['osakaTime'] = 0
 
+    out['config']['blobSchedule']['osaka'] = {
+        "target": data['target_blobs_per_block_osaka'],
+        "max": data['max_blobs_per_block_osaka']
+    }
+
 print(json.dumps(out, indent='  '))
diff --git a/config-example/el/genesis-config.yaml b/config-example/el/genesis-config.yaml
index 258e993..a6ed797 100644
--- a/config-example/el/genesis-config.yaml
+++ b/config-example/el/genesis-config.yaml
@@ -37,3 +37,9 @@ capella_fork_epoch: ${CAPELLA_FORK_EPOCH}
 deneb_fork_epoch: ${DENEB_FORK_EPOCH}
 electra_fork_epoch: ${ELECTRA_FORK_EPOCH}
 fulu_fork_epoch: ${FULU_FORK_EPOCH}
+target_blobs_per_block_cancun: 3
+max_blobs_per_block_cancun: 6
+target_blobs_per_block_prague: ${TARGET_BLOBS_PER_BLOCK_ELECTRA}
+max_blobs_per_block_prague: ${MAX_BLOBS_PER_BLOCK_ELECTRA}
+target_blobs_per_block_osaka: ${TARGET_BLOBS_PER_BLOCK_FULU}
+max_blobs_per_block_osaka: ${MAX_BLOBS_PER_BLOCK_FULU}