diff --git a/templates/definition/meter/sessy-p1.yaml b/templates/definition/meter/sessy-p1.yaml
new file mode 100644
index 000000000..8fc06991b
--- /dev/null
+++ b/templates/definition/meter/sessy-p1.yaml
@@ -0,0 +1,106 @@
+template: sessy-p1
+products:
+  - brand: Sessy
+    description:
+      generic: Sessy P1
+params:
+  - name: usage
+    choice: ["grid"]
+  - name: host
+  - name: cache
+    default: 10
+render: |
+  type: custom
+  power:
+    source: http
+    uri: http://{{ .host }}/api/v2/p1/details
+    headers:
+      - content-type: application/json
+    jq: .power_total
+    cache: {{ .cache }}
+    timeout: 10s
+  energy:
+    source: calc
+    add:
+      - source: http
+        uri: http://{{ .host }}/api/v2/p1/details
+        headers:
+          - content-type: application/json
+        jq: .power_consumed_tariff1
+        scale: 0.001
+        cache: {{ .cache }}
+        timeout: 10s
+      - source: http
+        uri: http://{{ .host }}/api/v2/p1/details
+        headers:
+          - content-type: application/json
+        jq: .power_consumed_tariff2
+        scale: 0.001
+        cache: {{ .cache }}
+        timeout: 10s
+      - source: http
+        uri: http://{{ .host }}/api/v2/p1/details
+        headers:
+          - content-type: application/json
+        jq: .power_produced_tariff1
+        scale: -0.001
+        cache: {{ .cache }}
+        timeout: 10s
+      - source: http
+        uri: http://{{ .host }}/api/v2/p1/details
+        headers:
+          - content-type: application/json
+        jq: .power_produced_tariff2
+        scale: -0.001
+        cache: {{ .cache }}
+        timeout: 10s
+  currents:
+    - source: http
+      uri: http://{{ .host }}/api/v2/p1/details
+      headers:
+        - content-type: application/json
+      jq: .current_l1
+      scale: 0.001
+      cache: {{ .cache }}
+      timeout: 10s
+    - source: http
+      uri: http://{{ .host }}/api/v2/p1/details
+      headers:
+        - content-type: application/json
+      jq: .current_l2
+      scale: 0.001
+      cache: {{ .cache }}
+      timeout: 10s
+    - source: http
+      uri: http://{{ .host }}/api/v2/p1/details
+      headers:
+        - content-type: application/json
+      jq: .current_l3
+      scale: 0.001
+      cache: {{ .cache }}
+      timeout: 10s
+  voltages:
+    - source: http
+      uri: http://{{ .host }}/api/v2/p1/details
+      headers:
+        - content-type: application/json
+      jq: .voltage_l1
+      scale: 0.001
+      cache: {{ .cache }}
+      timeout: 10s
+    - source: http
+      uri: http://{{ .host }}/api/v2/p1/details
+      headers:
+        - content-type: application/json
+      jq: .voltage_l2
+      scale: 0.001
+      cache: {{ .cache }}
+      timeout: 10s
+    - source: http
+      uri: http://{{ .host }}/api/v2/p1/details
+      headers:
+        - content-type: application/json
+      jq: .voltage_l3
+      scale: 0.001
+      cache: {{ .cache }}
+      timeout: 10s
diff --git a/templates/definition/meter/sessy-smart-battery.yaml b/templates/definition/meter/sessy-smart-battery.yaml
new file mode 100644
index 000000000..53c6819a4
--- /dev/null
+++ b/templates/definition/meter/sessy-smart-battery.yaml
@@ -0,0 +1,160 @@
+template: sessy-smart-battery
+covers: [sessy-smart-battery]
+products:
+  - brand: Sessy
+    description:
+      generic: Sessy Smart Battery
+capabilities: ["battery-control"]
+params:
+  - name: usage
+    choice: ["battery"]
+  - name: host
+  - name: user
+    required: true
+  - name: password
+    required: true
+  - name: cache
+    default: 10
+  - preset: battery-params
+  - name: capacity
+    default: 5
+render: |
+  type: custom
+  power:
+    source: http
+    uri: http://{{ .host }}/api/v1/power/status
+    auth:
+      type: basic
+      user: {{ .user }}
+      password: {{ .password }}
+    headers:
+      - content-type: application/json
+    jq: .sessy.power
+    cache: {{ .cache }}
+    timeout: 10s
+  energy:
+    source: http
+    uri: http://{{ .host }}/api/v1/energy/status
+    auth:
+      type: basic
+      user: {{ .user }}
+      password: {{ .password }}
+    headers:
+      - content-type: application/json
+    jq: .sessy_energy.import_wh
+    cache: {{ .cache }}
+    timeout: 10s
+  soc:
+    source: http
+    uri: http://{{ .host }}/api/v1/power/status
+    auth:
+      type: basic
+      user: {{ .user }}
+      password: {{ .password }}
+    headers:
+      - content-type: application/json
+    jq: .sessy.state_of_charge
+    scale: 100
+    cache: {{ .cache }}
+    timeout: 10s
+  voltages:
+    - source: http
+      uri: http://{{ .host }}/api/v1/power/status
+      auth:
+        type: basic
+        user: {{ .user }}
+        password: {{ .password }}
+      headers:
+        - content-type: application/json
+      jq: .renewable_energy_phase1.voltage_rms
+      scale: 0.001
+      cache: {{ .cache }}
+      timeout: 10s
+    - source: http
+      uri: http://{{ .host }}/api/v1/power/status
+      auth:
+        type: basic
+        user: {{ .user }}
+        password: {{ .password }}
+      headers:
+        - content-type: application/json
+      jq: .renewable_energy_phase2.voltage_rms
+      scale: 0.001
+      cache: {{ .cache }}
+      timeout: 10s
+    - source: http
+      uri: http://{{ .host }}/api/v1/power/status
+      auth:
+        type: basic
+        user: {{ .user }}
+        password: {{ .password }}
+      headers:
+        - content-type: application/json
+      jq: .renewable_energy_phase3.voltage_rms
+      scale: 0.001
+      cache: {{ .cache }}
+      timeout: 10s
+  batterymode:
+    source: switch
+    switch:
+    - case: 1 # normal
+      set:
+        source: http
+        uri: http://{{ .host }}/api/v1/power/active_strategy
+        method: POST
+        auth:
+          type: basic
+          user: {{ .user }}
+          password: {{ .password }}
+        headers:
+        - content-type: application/json
+        body: '{"strategy": "POWER_STRATEGY_NOM"}'
+    - case: 2 # hold
+      set:
+        source: sequence
+        set:
+        - source: http
+          uri: http://{{ .host }}/api/v1/power/active_strategy
+          method: POST
+          auth:
+            type: basic
+            user: {{ .user }}
+            password: {{ .password }}
+          headers:
+          - content-type: application/json
+          body: '{"strategy": "POWER_STRATEGY_API"}'
+        - source: http
+          uri: http://{{ .host }}/api/v1/power/setpoint
+          method: POST
+          auth:
+            type: basic
+            user: {{ .user }}
+            password: {{ .password }}
+          headers:
+          - content-type: application/json
+          body: '{"setpoint": 0}'
+    - case: 3 # charge
+      set:
+        source: sequence
+        set:
+        - source: http
+          uri: http://{{ .host }}/api/v1/power/active_strategy
+          method: POST
+          auth:
+            type: basic
+            user: {{ .user }}
+            password: {{ .password }}
+          headers:
+          - content-type: application/json
+          body: '{"strategy": "POWER_STRATEGY_API"}'
+        - source: http
+          uri: http://{{ .host }}/api/v1/power/setpoint
+          method: POST
+          auth:
+            type: basic
+            user: {{ .user }}
+            password: {{ .password }}
+          headers:
+          - content-type: application/json
+          body: '{"setpoint": -2200}'
+  capacity: {{ .capacity }}