diff --git a/model/ddl.sql b/model/ddl.sql
index 1206f1e..6ae5de0 100644
--- a/model/ddl.sql
+++ b/model/ddl.sql
@@ -107,7 +107,7 @@ CREATE TABLE PUBLIC.BAY (
     ID BIGSERIAL PRIMARY KEY,
   	NAME VARCHAR(64) NOT NULL DEFAULT '',
   	TYPE VARCHAR(64) NOT NULL DEFAULT '',
-    NOMINAL_VOLTAGE DOUBLE PRECISION NOT NULL DEFAULT -1,
+    UNOM DOUBLE PRECISION NOT NULL DEFAULT -1,
     FLA DOUBLE PRECISION NOT NULL DEFAULT -1,
     CAPACITY DOUBLE PRECISION NOT NULL DEFAULT -1,
     DESCRIPTION VARCHAR(512) NOT NULL DEFAULT '',