diff --git a/BUILDS.md b/BUILDS.md
index 3740f5708..254c84be8 100644
--- a/BUILDS.md
+++ b/BUILDS.md
@@ -73,6 +73,7 @@
 | USE_BL0940            | - | x | x | x | x | - | - |
 | USE_TELEINFO          | - | - | - | - | - | - | - |
 | USE_IEM3000           | - | - | - | - | - | - | - |
+| USE_WE517             | - | - | - | - | - | - | - |
 |                       |   |   |   |   |   |   |   |
 | USE_ADC_VCC           | x | x | - | - | - | x | - |
 | USE_COUNTER           | - | - | x | x | x | - | x |
diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index b2f70552b..5a0f71364 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -66,3 +66,4 @@ The attached binaries can also be downloaded from http://ota.tasmota.com/tasmota
 - Change new IR Raw compact format (#9444)
 - Change MAX31865 driver to support up to 6 thermocouples selected by ``MX31865 CS`` instead of ``SSPI CS`` (#9103)
 - Add optional support for Mitsubishi Electric HVAC by David Gwynne (#9237)
+- Add optional support for Orno WE517-Modbus energy meter by Maxime Vincent (#9353)
diff --git a/tasmota/CHANGELOG.md b/tasmota/CHANGELOG.md
index d237822e4..28234a417 100644
--- a/tasmota/CHANGELOG.md
+++ b/tasmota/CHANGELOG.md
@@ -9,6 +9,7 @@
 - Change new IR Raw compact format (#9444)
 - Change MAX31865 driver to support up to 6 thermocouples selected by ``MX31865 CS`` instead of ``SSPI CS`` (#9103)
 - Add optional support for Mitsubishi Electric HVAC by David Gwynne (#9237)
+- Add optional support for Orno WE517-Modbus energy meter by Maxime Vincent (#9353)
 
 ### 8.5.1 20201002
 
diff --git a/tasmota/language/bg_BG.h b/tasmota/language/bg_BG.h
index 3d607e4bf..9cc01de9a 100644
--- a/tasmota/language/bg_BG.h
+++ b/tasmota/language/bg_BG.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/cs_CZ.h b/tasmota/language/cs_CZ.h
index 659632efd..bf8f67a37 100644
--- a/tasmota/language/cs_CZ.h
+++ b/tasmota/language/cs_CZ.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/de_DE.h b/tasmota/language/de_DE.h
index 2f01b0e59..23db7da4f 100644
--- a/tasmota/language/de_DE.h
+++ b/tasmota/language/de_DE.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/el_GR.h b/tasmota/language/el_GR.h
index c2429d55a..95b640da8 100644
--- a/tasmota/language/el_GR.h
+++ b/tasmota/language/el_GR.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/en_GB.h b/tasmota/language/en_GB.h
index 54e4a6850..2ac306f8e 100644
--- a/tasmota/language/en_GB.h
+++ b/tasmota/language/en_GB.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/es_ES.h b/tasmota/language/es_ES.h
index 8adc6e74e..1401c4fce 100644
--- a/tasmota/language/es_ES.h
+++ b/tasmota/language/es_ES.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/fr_FR.h b/tasmota/language/fr_FR.h
index 433862b98..15dd090dc 100644
--- a/tasmota/language/fr_FR.h
+++ b/tasmota/language/fr_FR.h
@@ -596,6 +596,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 RX"
 #define D_SENSOR_SDM630_TX     "SDM630 TX"
 #define D_SENSOR_SDM630_RX     "SDM630 RX"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/he_HE.h b/tasmota/language/he_HE.h
index 75f95fda4..ae2e439be 100644
--- a/tasmota/language/he_HE.h
+++ b/tasmota/language/he_HE.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/hu_HU.h b/tasmota/language/hu_HU.h
index 1adb960cb..8a800383d 100644
--- a/tasmota/language/hu_HU.h
+++ b/tasmota/language/hu_HU.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/it_IT.h b/tasmota/language/it_IT.h
index 3e94ce149..1a14eee05 100644
--- a/tasmota/language/it_IT.h
+++ b/tasmota/language/it_IT.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 - RX"
 #define D_SENSOR_SDM630_TX     "SDM630 - TX"
 #define D_SENSOR_SDM630_RX     "SDM630 - RX"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 - CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 - DIO"
 #define D_SENSOR_TM1638_STB    "TM16 - STB"
diff --git a/tasmota/language/ko_KO.h b/tasmota/language/ko_KO.h
index 7aadf0b78..5a8522b72 100644
--- a/tasmota/language/ko_KO.h
+++ b/tasmota/language/ko_KO.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/nl_NL.h b/tasmota/language/nl_NL.h
index 5b190884a..ec8116deb 100644
--- a/tasmota/language/nl_NL.h
+++ b/tasmota/language/nl_NL.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/pl_PL.h b/tasmota/language/pl_PL.h
index 18eedb5dc..8ebba663e 100644
--- a/tasmota/language/pl_PL.h
+++ b/tasmota/language/pl_PL.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/pt_BR.h b/tasmota/language/pt_BR.h
index e6fe1a938..115704748 100644
--- a/tasmota/language/pt_BR.h
+++ b/tasmota/language/pt_BR.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/pt_PT.h b/tasmota/language/pt_PT.h
index 1106827ee..202564422 100644
--- a/tasmota/language/pt_PT.h
+++ b/tasmota/language/pt_PT.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/ro_RO.h b/tasmota/language/ro_RO.h
index ed9848857..13c91f8e8 100644
--- a/tasmota/language/ro_RO.h
+++ b/tasmota/language/ro_RO.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/ru_RU.h b/tasmota/language/ru_RU.h
index 1796d1b30..fe4de2043 100644
--- a/tasmota/language/ru_RU.h
+++ b/tasmota/language/ru_RU.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/sk_SK.h b/tasmota/language/sk_SK.h
index 240e86003..986bc95cd 100644
--- a/tasmota/language/sk_SK.h
+++ b/tasmota/language/sk_SK.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/sv_SE.h b/tasmota/language/sv_SE.h
index 72030d9ce..3178cbd30 100644
--- a/tasmota/language/sv_SE.h
+++ b/tasmota/language/sv_SE.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/tr_TR.h b/tasmota/language/tr_TR.h
index ddfe84e43..5c6254f3b 100644
--- a/tasmota/language/tr_TR.h
+++ b/tasmota/language/tr_TR.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/uk_UA.h b/tasmota/language/uk_UA.h
index 5c583da06..8e3b01691 100644
--- a/tasmota/language/uk_UA.h
+++ b/tasmota/language/uk_UA.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/zh_CN.h b/tasmota/language/zh_CN.h
index b3f1de4e9..a50acdb0e 100644
--- a/tasmota/language/zh_CN.h
+++ b/tasmota/language/zh_CN.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/language/zh_TW.h b/tasmota/language/zh_TW.h
index 5ee1cd862..65c865491 100644
--- a/tasmota/language/zh_TW.h
+++ b/tasmota/language/zh_TW.h
@@ -600,6 +600,8 @@
 #define D_SENSOR_SDM120_RX     "SDMx20 Rx"
 #define D_SENSOR_SDM630_TX     "SDM630 Tx"
 #define D_SENSOR_SDM630_RX     "SDM630 Rx"
+#define D_SENSOR_WE517_TX      "WE517 Tx"
+#define D_SENSOR_WE517_RX      "WE517 Rx"
 #define D_SENSOR_TM1638_CLK    "TM16 CLK"
 #define D_SENSOR_TM1638_DIO    "TM16 DIO"
 #define D_SENSOR_TM1638_STB    "TM16 STB"
diff --git a/tasmota/my_user_config.h b/tasmota/my_user_config.h
index 6c2f002a7..bef983bde 100644
--- a/tasmota/my_user_config.h
+++ b/tasmota/my_user_config.h
@@ -668,6 +668,7 @@
 //#define USE_IEM3000                              // Add support for Schneider Electric iEM3000-Modbus series energy monitor (+0k8 code)
   #define IEM3000_SPEED          19200           // iEM3000-Modbus RS485 serial speed (default: 19200 baud)
   #define IEM3000_ADDR           1               // iEM3000-Modbus modbus address (default: 0x01)
+//#define USE_WE517                                // Add support for Orno WE517-Modbus energy monitor (+1k code)
 
 // -- Low level interface devices -----------------
 #define USE_DHT                                  // Add support for DHT11, AM2301 (DHT21, DHT22, AM2302, AM2321) and SI7021 Temperature and Humidity sensor (1k6 code)
diff --git a/tasmota/support_features.ino b/tasmota/support_features.ino
index a4cc5aab7..0a71d86ed 100644
--- a/tasmota/support_features.ino
+++ b/tasmota/support_features.ino
@@ -610,8 +610,12 @@ void GetFeatures(void)
 #ifdef USE_MIEL_HVAC
   feature6 |= 0x04000000;  // xdrv_44_miel_hvac.ino
 #endif
-//  feature6 |= 0x08000000;
+#if defined(USE_ENERGY_SENSOR) && defined(USE_WE517)
+  feature6 |= 0x08000000;  // xnrg_17_ornowe517.ino
+#endif
+
 //  feature6 |= 0x10000000;
+
 #if defined(ESP32) && defined(USE_TTGO_WATCH)
   feature6 |= 0x20000000;  // xdrv_83_esp32watch.ino
 #endif
diff --git a/tasmota/tasmota_configurations.h b/tasmota/tasmota_configurations.h
index 6a08a9dc6..f9b165ae7 100644
--- a/tasmota/tasmota_configurations.h
+++ b/tasmota/tasmota_configurations.h
@@ -174,6 +174,7 @@
 //#define USE_SOLAX_X1                             // Add support for Solax X1 series Modbus log info (+3k1 code)
 //#define USE_LE01MR                               // Add support for F&F LE-01MR modbus energy meter (+2k code)
 //#define USE_TELEINFO                             // Add support for French Energy Provider metering telemetry (+5k2 code, +168 RAM + SmartMeter LinkedList Values RAM)
+//#define USE_WE517                                // Add support for Orno WE517-Modbus energy monitor (+1k code)
 
 #define USE_DHT                                  // Add support for DHT11, AM2301 (DHT21, DHT22, AM2302, AM2321) and SI7021 Temperature and Humidity sensor
 #define USE_MAX31855                             // Add support for MAX31855 K-Type thermocouple sensor using softSPI
@@ -271,6 +272,8 @@
   #undef USE_SOLAX_X1                            // Disable support for Solax X1 series Modbus log info (+3k1 code)
   #undef USE_LE01MR                              // Disable support for F&F LE-01MR Modbus energy meter (+2k code)
   #undef USE_TELEINFO                            // Disable support for French Energy Provider metering telemetry
+  #undef USE_IEM3000                             // Disable support for Schneider Electric iEM3000-Modbus series energy monitor (+0k8 code)
+  #undef USE_WE517                               // Disable support for Orno WE517-Modbus energy monitor (+1k code)
 
 
 #define USE_I2C                                  // I2C using library wire (+10k code, 0k2 mem, 124 iram)
@@ -365,6 +368,8 @@
   #undef USE_SOLAX_X1                            // Disable support for Solax X1 series Modbus log info (+3k1 code)
   #undef USE_LE01MR                              // Disable support for F&F LE-01MR Modbus energy meter (+2k code)
   #undef USE_TELEINFO                            // Disable support for French Energy Provider metering telemetry
+  #undef USE_IEM3000                             // Disable support for Schneider Electric iEM3000-Modbus series energy monitor (+0k8 code)
+  #undef USE_WE517                               // Disable support for Orno WE517-Modbus energy monitor (+1k code)
 
 //#undef USE_DS18x20                               // Disable support for DS18x20 sensors with id sort, single scan and read retry (+1k3 code)
 
@@ -521,7 +526,8 @@
 #undef USE_SOLAX_X1                              // Disable support for Solax X1 series Modbus log info (+3k1 code)
 #undef USE_LE01MR                                // Disable support for F&F LE-01MR Modbus energy meter (+2k code)
 #undef USE_TELEINFO                              // Disable support for French Energy Provider metering telemetry
-
+#undef USE_IEM3000                               // Disable support for Schneider Electric iEM3000-Modbus series energy monitor (+0k8 code)
+#undef USE_WE517                                 // Disable support for Orno WE517-Modbus energy monitor (+1k code)
 
 #undef USE_DHT                                   // Disable support for DHT11, AM2301 (DHT21, DHT22, AM2302, AM2321) and SI7021 Temperature and Humidity sensor
 #undef USE_MAX31855                              // Disable MAX31855 K-Type thermocouple sensor using softSPI
@@ -655,7 +661,8 @@
 #undef USE_SOLAX_X1                              // Disable support for Solax X1 series Modbus log info (+3k1 code)
 #undef USE_LE01MR                                // Disable support for F&F LE-01MR Modbus energy meter (+2k code)
 #undef USE_TELEINFO                              // Disable support for French Energy Provider metering telemetry
-
+#undef USE_IEM3000                               // Disable support for Schneider Electric iEM3000-Modbus series energy monitor (+0k8 code)
+#undef USE_WE517                                 // Disable support for Orno WE517-Modbus energy monitor (+1k code)
 
 #undef USE_DHT                                   // Disable support for DHT11, AM2301 (DHT21, DHT22, AM2302, AM2321) and SI7021 Temperature and Humidity sensor
 #undef USE_MAX31855                              // Disable MAX31855 K-Type thermocouple sensor using softSPI
@@ -791,6 +798,7 @@
 #undef USE_BL0940                                // Disable support for BL0940 Energy monitor as used in Blitzwolf SHP-10 (+1k6 code)
 #undef USE_TELEINFO                              // Disable support for French Energy Provider metering telemetry
 #undef USE_IEM3000                               // Disable support for Schneider Electric iEM3000-Modbus series energy monitor (+0k8 code)
+#undef USE_WE517                                 // Disable support for Orno WE517-Modbus energy monitor (+1k code)
 
 #undef USE_DHT                                   // Disable support for DHT11, AM2301 (DHT21, DHT22, AM2302, AM2321) and SI7021 Temperature and Humidity sensor
 #undef USE_MAX31855                              // Disable MAX31855 K-Type thermocouple sensor using softSPI
diff --git a/tasmota/tasmota_template.h b/tasmota/tasmota_template.h
index 66f702ebb..3fcbd11d9 100644
--- a/tasmota/tasmota_template.h
+++ b/tasmota/tasmota_template.h
@@ -148,6 +148,8 @@ enum UserSelectablePins {
   GPIO_DYP_RX,
   GPIO_MIEL_HVAC_TX,                   // Mitsubishi Electric HVAC TX pin
   GPIO_MIEL_HVAC_RX,                   // Mitsubishi Electric HVAC RX pin
+  GPIO_WE517_TX,                       // ORNO WE517 Serial interface
+  GPIO_WE517_RX,                       // ORNO WE517 Serial interface
   GPIO_SENSOR_END };
 
 enum ProgramSelectablePins {
@@ -251,7 +253,8 @@ const char kSensorNames[] PROGMEM =
   D_SENSOR_IEM3000_TX "|" D_SENSOR_IEM3000_RX "|"
   D_SENSOR_ZIGBEE_RST "|"
   D_SENSOR_DYP_RX "|"
-  D_SENSOR_MIEL_HVAC_TX "|" D_SENSOR_MIEL_HVAC_RX
+  D_SENSOR_MIEL_HVAC_TX "|" D_SENSOR_MIEL_HVAC_RX "|"
+  D_SENSOR_WE517_TX "|" D_SENSOR_WE517_RX
   ;
 
 const char kSensorNamesFixed[] PROGMEM =
@@ -457,6 +460,10 @@ const uint16_t kGpioNiceList[] PROGMEM = {
   AGPIO(GPIO_IEM3000_TX),    // IEM3000 Serial interface
   AGPIO(GPIO_IEM3000_RX),    // IEM3000 Serial interface
 #endif
+#ifdef USE_WE517
+  AGPIO(GPIO_WE517_TX),      // WE517 Serial interface
+  AGPIO(GPIO_WE517_RX),      // WE517 Serial interface
+#endif
 #endif  // USE_ENERGY_SENSOR
 
 // Serial
diff --git a/tasmota/xnrg_17_ornowe517.ino b/tasmota/xnrg_17_ornowe517.ino
new file mode 100644
index 000000000..c62cccc4a
--- /dev/null
+++ b/tasmota/xnrg_17_ornowe517.ino
@@ -0,0 +1,232 @@
+/*
+  xnrg_17_ornowe512.ino - Orno WE517-Modbus energy meter support for Tasmota
+
+  Copyright (C) 2020  Maxime Vincent - based on the work of Gennaro Tortone and Theo Arends
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifdef USE_ENERGY_SENSOR
+#ifdef USE_WE517
+/*********************************************************************************************\
+ * Orno WE517-Modbus energy meter
+ *
+ * [SetOption72: Set reference used for total energy]
+ * This driver supports SetOption72 = 1, which enables the use of Hardware Energy Totals,
+ * (as apposed to software energy totals kept in Tasmota flash memory)
+\*********************************************************************************************/
+
+#define XNRG_17             17
+
+// can be user defined in my_user_config.h
+#ifndef WE517_SPEED
+  #define WE517_SPEED      9600    // default WE517 Modbus address
+#endif
+// can be user defined in my_user_config.h
+#ifndef WE517_ADDR
+  #define WE517_ADDR       1       // default WE517 Modbus address
+#endif
+
+#define FUNCTION_CODE_READ_HOLDING_REGISTERS (0x03)
+
+#include <TasmotaModbus.h>
+TasmotaModbus *We517Modbus;
+
+const uint16_t we517_start_addresses[] {
+  /*    */          // 3P4 3P3 1P2 Unit Description
+  /*  0  */ 0x000E,  //  +   -   +   V    Phase 1 line to neutral volts
+  /*  1  */ 0x0010,  //  +   -   -   V    Phase 2 line to neutral volts
+  /*  2  */ 0x0012,  //  +   -   -   V    Phase 3 line to neutral volts
+  /*  3  */ 0x0016,  //  +   +   +   A    Phase 1 current
+  /*  4  */ 0x0018,  //  +   +   -   A    Phase 2 current
+  /*  5  */ 0x001A,  //  +   +   -   A    Phase 3 current
+  /*  6  */ 0x001E,  //  +   -   +   kW   Phase 1 power
+  /*  7  */ 0x0020,  //  +   -   +   kW   Phase 2 power
+  /*  8  */ 0x0022,  //  +   -   -   kW   Phase 3 power
+  /*  9  */ 0x0026,  //  +   -   +   VAr  Phase 1 volt amps reactive
+  /* 10  */ 0x0026,  //  +   -   -   VAr  Phase 2 volt amps reactive
+  /* 11  */ 0x002A,  //  +   -   -   VAr  Phase 3 volt amps reactive
+  /* 12  */ 0x0036,  //  +   -   +        Phase 1 power factor
+  /* 13  */ 0x0038,  //  +   -   -        Phase 2 power factor
+  /* 14  */ 0x003A,  //  +   -   -        Phase 3 power factor
+  /* 15  */ 0x0014,  //  +   +   +   Hz   Frequency of supply voltages
+  /* 16  */ 0x0100   //  +   +   +   kWh  Total active energy
+};
+
+struct WE517 {
+  uint8_t read_state = 0;
+  uint8_t send_retry = 0;
+} We517;
+
+/*********************************************************************************************/
+
+void WE517Every250ms(void)
+{
+  bool data_ready = We517Modbus->ReceiveReady();
+
+  if (data_ready) {
+    uint8_t buffer[14];  // At least 5 + (2 * 2) = 9
+
+    uint32_t error = We517Modbus->ReceiveBuffer(buffer, 2);
+    AddLogBuffer(LOG_LEVEL_DEBUG_MORE, buffer, We517Modbus->ReceiveCount());
+
+    if (error) {
+      AddLog_P2(LOG_LEVEL_DEBUG, PSTR("ORNO: WE517 error %d"), error);
+    } else {
+      Energy.data_valid[0] = 0;
+      Energy.data_valid[1] = 0;
+      Energy.data_valid[2] = 0;
+
+      //  0  1  2  3  4  5  6  7  8
+      // SA FC BC Fh Fl Sh Sl Cl Ch
+      // 01 04 04 43 66 33 34 1B 38 = 230.2 Volt
+      float value;
+      ((uint8_t*)&value)[3] = buffer[3];   // Get float values
+      ((uint8_t*)&value)[2] = buffer[4];
+      ((uint8_t*)&value)[1] = buffer[5];
+      ((uint8_t*)&value)[0] = buffer[6];
+
+      switch(We517.read_state) {
+        case 0:
+          Energy.voltage[0] = value;
+          break;
+
+        case 1:
+          Energy.voltage[1] = value;
+          break;
+
+        case 2:
+          Energy.voltage[2] = value;
+          break;
+
+        case 3:
+          Energy.current[0] = value;
+          break;
+
+        case 4:
+          Energy.current[1] = value;
+          break;
+
+        case 5:
+          Energy.current[2] = value;
+          break;
+
+        case 6:
+          Energy.active_power[0] = value * 1000;
+          break;
+
+        case 7:
+          Energy.active_power[1] = value * 1000;
+          break;
+
+        case 8:
+          Energy.active_power[2] = value * 1000;
+          break;
+
+        case 9:
+          Energy.reactive_power[0] = value;
+          break;
+
+        case 10:
+          Energy.reactive_power[1] = value;
+          break;
+
+        case 11:
+          Energy.reactive_power[2] = value;
+          break;
+
+        case 12:
+          Energy.power_factor[0] = value;
+          break;
+
+        case 13:
+          Energy.power_factor[1] = value;
+          break;
+
+        case 14:
+          Energy.power_factor[2] = value;
+          break;
+
+        case 15:
+          Energy.frequency[0] = value;
+          break;
+
+        case 16:
+          EnergyUpdateTotal(value, true);
+          break;
+      }
+
+      We517.read_state++;
+      if (sizeof(we517_start_addresses)/2 == We517.read_state) {
+        We517.read_state = 0;
+      }
+    }
+  } // end data ready
+
+  if (0 == We517.send_retry || data_ready) {
+    We517.send_retry = 5;
+    We517Modbus->Send(WE517_ADDR, FUNCTION_CODE_READ_HOLDING_REGISTERS, we517_start_addresses[We517.read_state], 2);
+  } else {
+    We517.send_retry--;
+  }
+}
+
+void We517SnsInit(void)
+{
+  We517Modbus = new TasmotaModbus(Pin(GPIO_WE517_RX), Pin(GPIO_WE517_TX));
+  uint8_t result = We517Modbus->Begin(WE517_SPEED);
+  if (result) {
+      if (2 == result) {
+          AddLog_P2(LOG_LEVEL_DEBUG, PSTR("ORNO: WE517 HW serial init 8E1 at %d baud"), WE517_SPEED);
+          Serial.begin(WE517_SPEED, SERIAL_8E1);
+          ClaimSerial();
+      }
+      Energy.phase_count = 3;
+      Energy.frequency_common = true; // Use common frequency
+  } else {
+      energy_flg = ENERGY_NONE;
+  }
+}
+
+void We517DrvInit(void)
+{
+  if (PinUsed(GPIO_WE517_RX) && PinUsed(GPIO_WE517_TX)) {
+    energy_flg = XNRG_17;
+  }
+}
+
+/*********************************************************************************************\
+ * Interface
+\*********************************************************************************************/
+
+bool Xnrg17(uint8_t function)
+{
+  bool result = false;
+
+  switch (function) {
+    case FUNC_EVERY_250_MSECOND:
+      if (uptime > 4) { WE517Every250ms(); }
+      break;
+    case FUNC_INIT:
+      We517SnsInit();
+      break;
+    case FUNC_PRE_INIT:
+      We517DrvInit();
+      break;
+  }
+  return result;
+}
+
+#endif  // USE_WE517
+#endif  // USE_ENERGY_SENSOR
\ No newline at end of file
diff --git a/tools/decode-status.py b/tools/decode-status.py
index 928e68dd1..985f06d2d 100755
--- a/tools/decode-status.py
+++ b/tools/decode-status.py
@@ -229,7 +229,7 @@ a_features = [[
     "USE_VEML7700","USE_MCP9808","USE_BL0940","USE_TELEGRAM",
     "USE_HP303B","USE_TCP_BRIDGE","USE_TELEINFO","USE_LMT01",
     "USE_PROMETHEUS","USE_IEM3000","USE_DYP","USE_I2S_AUDIO",
-    "USE_MLX90640","USE_VL53L1X","USE_MIEL_HVAC","",
+    "USE_MLX90640","USE_VL53L1X","USE_MIEL_HVAC","USE_WE517",
     "","USE_TTGO_WATCH","USE_ETHERNET","USE_WEBCAM"
     ],[
     "","","","",