diff --git a/hw-common/hw-common-core/src/main/java/com/hw/common/core/constant/TdEngineConstants.java b/hw-common/hw-common-core/src/main/java/com/hw/common/core/constant/TdEngineConstants.java
index dd4c569..d52282f 100644
--- a/hw-common/hw-common-core/src/main/java/com/hw/common/core/constant/TdEngineConstants.java
+++ b/hw-common/hw-common-core/src/main/java/com/hw/common/core/constant/TdEngineConstants.java
@@ -65,6 +65,11 @@ public class TdEngineConstants {
 
     public static final int ST_TAG_MONITORUNITID_TYPE = 2;
 
+
+    /*能源部分*/
+    public static final String EMS_DATABASE_NAME  = "db_hwmes";
+    public static final String EMS_TABLE_NAME_PREFIX = "t_e_";
+
     /**
      * 需要转换的key
      */
@@ -131,4 +136,13 @@ public class TdEngineConstants {
         return DEFAULT_DEVICE_STATUS_TABLE_NAME_PREFIX + deviceId;
     }
 
+    /**
+     * 获取能源子表的表名称
+     * @param monitorId 计量设备编号
+     * @return String
+     */
+    public static String getEmsTableName(String monitorId){
+         return EMS_TABLE_NAME_PREFIX + monitorId;
+    }
+
 }