diff --git a/homeassistant/components/easyenergy/services.py b/homeassistant/components/easyenergy/services.py
index 4aeef2f4d71..777fa4280b2 100644
--- a/homeassistant/components/easyenergy/services.py
+++ b/homeassistant/components/easyenergy/services.py
@@ -31,9 +31,9 @@ ENERGY_USAGE_SERVICE_NAME: Final = "get_energy_usage_prices"
 ENERGY_RETURN_SERVICE_NAME: Final = "get_energy_return_prices"
 SERVICE_SCHEMA: Final = vol.Schema(
     {
+        vol.Required(ATTR_INCL_VAT): bool,
         vol.Optional(ATTR_START): str,
         vol.Optional(ATTR_END): str,
-        vol.Required(ATTR_INCL_VAT, default=True): bool,
     }
 )
 
@@ -55,6 +55,7 @@ def __get_date(date_input: str | None) -> date | datetime:
         return value
 
     raise ServiceValidationError(
+        "Invalid datetime provided.",
         translation_domain=DOMAIN,
         translation_key="invalid_date",
         translation_placeholders={
diff --git a/tests/components/easyenergy/snapshots/test_services.ambr b/tests/components/easyenergy/snapshots/test_services.ambr
index c878709a997..96b1eca5498 100644
--- a/tests/components/easyenergy/snapshots/test_services.ambr
+++ b/tests/components/easyenergy/snapshots/test_services.ambr
@@ -918,22 +918,616 @@
   })
 # ---
 # name: test_service[end0-start1-incl_vat0-get_energy_return_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.11153,
+        'timestamp': '2023-01-18 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10698,
+        'timestamp': '2023-01-19 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10497,
+        'timestamp': '2023-01-19 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10172,
+        'timestamp': '2023-01-19 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10723,
+        'timestamp': '2023-01-19 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.11462,
+        'timestamp': '2023-01-19 04:00:00+00:00',
+      }),
+      dict({
+        'price': 0.11894,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1599,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.164,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17169,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.139,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.13635,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1296,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15487,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16049,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17596,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.18629,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20394,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19757,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17143,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14841,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14934,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.139,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end0-start1-incl_vat0-get_energy_usage_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.13495,
+        'timestamp': '2023-01-18 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12945,
+        'timestamp': '2023-01-19 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12701,
+        'timestamp': '2023-01-19 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12308,
+        'timestamp': '2023-01-19 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12975,
+        'timestamp': '2023-01-19 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.13869,
+        'timestamp': '2023-01-19 04:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14392,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19348,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19844,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20774,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16819,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16498,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15682,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.18739,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19419,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.21291,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.22541,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.24677,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.23906,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20743,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1815,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17958,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1807,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16819,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end0-start1-incl_vat0-get_gas_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 04:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end0-start1-incl_vat1-get_energy_return_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.11153,
+        'timestamp': '2023-01-18 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10698,
+        'timestamp': '2023-01-19 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10497,
+        'timestamp': '2023-01-19 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10172,
+        'timestamp': '2023-01-19 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10723,
+        'timestamp': '2023-01-19 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.11462,
+        'timestamp': '2023-01-19 04:00:00+00:00',
+      }),
+      dict({
+        'price': 0.11894,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1599,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.164,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17169,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.139,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.13635,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1296,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15487,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16049,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17596,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.18629,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20394,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19757,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17143,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14841,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14934,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.139,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end0-start1-incl_vat1-get_energy_usage_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.13495,
+        'timestamp': '2023-01-18 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12945,
+        'timestamp': '2023-01-19 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12701,
+        'timestamp': '2023-01-19 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12308,
+        'timestamp': '2023-01-19 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12975,
+        'timestamp': '2023-01-19 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.13869,
+        'timestamp': '2023-01-19 04:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14392,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19348,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19844,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20774,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16819,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16498,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15682,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.18739,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19419,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.21291,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.22541,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.24677,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.23906,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20743,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1815,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17958,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1807,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16819,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end0-start1-incl_vat1-get_gas_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 04:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end0-start1-incl_vat2-get_energy_return_prices]
   ServiceValidationError()
@@ -1863,22 +2457,616 @@
   })
 # ---
 # name: test_service[end1-start0-incl_vat0-get_energy_return_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.11153,
+        'timestamp': '2023-01-18 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10698,
+        'timestamp': '2023-01-19 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10497,
+        'timestamp': '2023-01-19 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10172,
+        'timestamp': '2023-01-19 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10723,
+        'timestamp': '2023-01-19 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.11462,
+        'timestamp': '2023-01-19 04:00:00+00:00',
+      }),
+      dict({
+        'price': 0.11894,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1599,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.164,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17169,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.139,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.13635,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1296,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15487,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16049,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17596,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.18629,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20394,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19757,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17143,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14841,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14934,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.139,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end1-start0-incl_vat0-get_energy_usage_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.13495,
+        'timestamp': '2023-01-18 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12945,
+        'timestamp': '2023-01-19 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12701,
+        'timestamp': '2023-01-19 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12308,
+        'timestamp': '2023-01-19 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12975,
+        'timestamp': '2023-01-19 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.13869,
+        'timestamp': '2023-01-19 04:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14392,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19348,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19844,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20774,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16819,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16498,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15682,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.18739,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19419,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.21291,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.22541,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.24677,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.23906,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20743,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1815,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17958,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1807,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16819,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end1-start0-incl_vat0-get_gas_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 04:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end1-start0-incl_vat1-get_energy_return_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.11153,
+        'timestamp': '2023-01-18 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10698,
+        'timestamp': '2023-01-19 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10497,
+        'timestamp': '2023-01-19 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10172,
+        'timestamp': '2023-01-19 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10723,
+        'timestamp': '2023-01-19 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.11462,
+        'timestamp': '2023-01-19 04:00:00+00:00',
+      }),
+      dict({
+        'price': 0.11894,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1599,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.164,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17169,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.139,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.13635,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1296,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15487,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16049,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17596,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.18629,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20394,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19757,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17143,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14841,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14934,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.139,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end1-start0-incl_vat1-get_energy_usage_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.13495,
+        'timestamp': '2023-01-18 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12945,
+        'timestamp': '2023-01-19 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12701,
+        'timestamp': '2023-01-19 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12308,
+        'timestamp': '2023-01-19 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12975,
+        'timestamp': '2023-01-19 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.13869,
+        'timestamp': '2023-01-19 04:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14392,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19348,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19844,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20774,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16819,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16498,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15682,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.18739,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19419,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.21291,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.22541,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.24677,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.23906,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20743,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1815,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17958,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1807,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16819,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end1-start0-incl_vat1-get_gas_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 04:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end1-start0-incl_vat2-get_energy_return_prices]
   ServiceValidationError()
@@ -1890,22 +3078,616 @@
   ServiceValidationError()
 # ---
 # name: test_service[end1-start1-incl_vat0-get_energy_return_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.11153,
+        'timestamp': '2023-01-18 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10698,
+        'timestamp': '2023-01-19 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10497,
+        'timestamp': '2023-01-19 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10172,
+        'timestamp': '2023-01-19 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10723,
+        'timestamp': '2023-01-19 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.11462,
+        'timestamp': '2023-01-19 04:00:00+00:00',
+      }),
+      dict({
+        'price': 0.11894,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1599,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.164,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17169,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.139,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.13635,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1296,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15487,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16049,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17596,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.18629,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20394,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19757,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17143,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14841,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14934,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.139,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end1-start1-incl_vat0-get_energy_usage_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.13495,
+        'timestamp': '2023-01-18 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12945,
+        'timestamp': '2023-01-19 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12701,
+        'timestamp': '2023-01-19 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12308,
+        'timestamp': '2023-01-19 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12975,
+        'timestamp': '2023-01-19 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.13869,
+        'timestamp': '2023-01-19 04:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14392,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19348,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19844,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20774,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16819,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16498,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15682,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.18739,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19419,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.21291,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.22541,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.24677,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.23906,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20743,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1815,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17958,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1807,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16819,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end1-start1-incl_vat0-get_gas_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 04:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end1-start1-incl_vat1-get_energy_return_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.11153,
+        'timestamp': '2023-01-18 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10698,
+        'timestamp': '2023-01-19 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10497,
+        'timestamp': '2023-01-19 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10172,
+        'timestamp': '2023-01-19 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.10723,
+        'timestamp': '2023-01-19 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.11462,
+        'timestamp': '2023-01-19 04:00:00+00:00',
+      }),
+      dict({
+        'price': 0.11894,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1599,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.164,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17169,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.139,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.13635,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1296,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15487,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16049,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17596,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.18629,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20394,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19757,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17143,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14841,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14934,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.139,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end1-start1-incl_vat1-get_energy_usage_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.13495,
+        'timestamp': '2023-01-18 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12945,
+        'timestamp': '2023-01-19 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12701,
+        'timestamp': '2023-01-19 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12308,
+        'timestamp': '2023-01-19 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.12975,
+        'timestamp': '2023-01-19 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.13869,
+        'timestamp': '2023-01-19 04:00:00+00:00',
+      }),
+      dict({
+        'price': 0.14392,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19348,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19844,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20774,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16819,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16498,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.15682,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.18739,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.19419,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.21291,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.22541,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.24677,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.23906,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.20743,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1815,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.17958,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.1807,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.16819,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end1-start1-incl_vat1-get_gas_prices]
-  ServiceValidationError()
+  dict({
+    'prices': list([
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 05:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 06:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 07:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 08:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 09:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 10:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 11:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 12:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 13:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 14:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 15:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 16:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 17:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 18:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 19:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 20:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 21:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 22:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-19 23:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 00:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 01:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 02:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 03:00:00+00:00',
+      }),
+      dict({
+        'price': 0.7253,
+        'timestamp': '2023-01-20 04:00:00+00:00',
+      }),
+    ]),
+  })
 # ---
 # name: test_service[end1-start1-incl_vat2-get_energy_return_prices]
   ServiceValidationError()
diff --git a/tests/components/easyenergy/test_services.py b/tests/components/easyenergy/test_services.py
index 24bee929489..d47b86e93a3 100644
--- a/tests/components/easyenergy/test_services.py
+++ b/tests/components/easyenergy/test_services.py
@@ -2,6 +2,7 @@
 
 import pytest
 from syrupy.assertion import SnapshotAssertion
+import voluptuous as vol
 
 from homeassistant.components.easyenergy.const import DOMAIN
 from homeassistant.components.easyenergy.services import (
@@ -25,15 +26,16 @@ async def test_has_services(
 
 @pytest.mark.usefixtures("init_integration")
 @pytest.mark.parametrize(
-    "service", [GAS_SERVICE_NAME, ENERGY_USAGE_SERVICE_NAME, ENERGY_RETURN_SERVICE_NAME]
-)
-@pytest.mark.parametrize("incl_vat", [{"incl_vat": False}, {"incl_vat": True}, {}])
-@pytest.mark.parametrize(
-    "start", [{"start": "2023-01-01 00:00:00"}, {"start": "incorrect date"}, {}]
-)
-@pytest.mark.parametrize(
-    "end", [{"end": "2023-01-01 00:00:00"}, {"end": "incorrect date"}, {}]
+    "service",
+    [
+        GAS_SERVICE_NAME,
+        ENERGY_USAGE_SERVICE_NAME,
+        ENERGY_RETURN_SERVICE_NAME,
+    ],
 )
+@pytest.mark.parametrize("incl_vat", [{"incl_vat": False}, {"incl_vat": True}])
+@pytest.mark.parametrize("start", [{"start": "2023-01-01 00:00:00"}, {}])
+@pytest.mark.parametrize("end", [{"end": "2023-01-01 00:00:00"}, {}])
 async def test_service(
     hass: HomeAssistant,
     snapshot: SnapshotAssertion,
@@ -42,18 +44,63 @@ async def test_service(
     start: dict[str, str],
     end: dict[str, str],
 ) -> None:
-    """Test the easyEnergy Service."""
+    """Test the EnergyZero Service."""
 
     data = incl_vat | start | end
 
-    try:
-        response = await hass.services.async_call(
+    assert snapshot == await hass.services.async_call(
+        DOMAIN,
+        service,
+        data,
+        blocking=True,
+        return_response=True,
+    )
+
+
+@pytest.mark.usefixtures("init_integration")
+@pytest.mark.parametrize(
+    "service",
+    [
+        GAS_SERVICE_NAME,
+        ENERGY_USAGE_SERVICE_NAME,
+        ENERGY_RETURN_SERVICE_NAME,
+    ],
+)
+@pytest.mark.parametrize(
+    ("service_data", "error", "error_message"),
+    [
+        ({}, vol.er.Error, "required key not provided .+"),
+        (
+            {"incl_vat": "incorrect vat"},
+            vol.er.Error,
+            "expected bool for dictionary value .+",
+        ),
+        (
+            {"incl_vat": True, "start": "incorrect date"},
+            ServiceValidationError,
+            "Invalid datetime provided.",
+        ),
+        (
+            {"incl_vat": True, "end": "incorrect date"},
+            ServiceValidationError,
+            "Invalid datetime provided.",
+        ),
+    ],
+)
+async def test_service_validation(
+    hass: HomeAssistant,
+    service: str,
+    service_data: dict[str, str | bool],
+    error: type[Exception],
+    error_message: str,
+) -> None:
+    """Test the easyEnergy Service."""
+
+    with pytest.raises(error, match=error_message):
+        await hass.services.async_call(
             DOMAIN,
             service,
-            data,
+            service_data,
             blocking=True,
             return_response=True,
         )
-        assert response == snapshot
-    except ServiceValidationError as e:
-        assert e == snapshot