diff --git a/carbontracker/emissions/intensity/fetchers/electricitymaps.py b/carbontracker/emissions/intensity/fetchers/electricitymaps.py
index a654afb..f258601 100644
--- a/carbontracker/emissions/intensity/fetchers/electricitymaps.py
+++ b/carbontracker/emissions/intensity/fetchers/electricitymaps.py
@@ -3,6 +3,7 @@
 from carbontracker import exceptions
 from carbontracker.emissions.intensity.fetcher import IntensityFetcher
 from carbontracker.emissions.intensity import intensity
+from carbontracker.loggerutil import Logger
 
 API_URL = "https://api-access.electricitymaps.com/free-tier/carbon-intensity/latest"
 
@@ -10,12 +11,18 @@
 class ElectricityMap(IntensityFetcher):
     _api_key = None
 
+    def __init__(self, logger: Logger):
+        self.logger = logger
+
     @classmethod
     def set_api_key(cls, key):
         cls._api_key = key
 
     def suitable(self, g_location):
-        return self._api_key is not None
+        has_key = self._api_key is not None
+        if not has_key:
+            self.logger.err_warn("ElectricityMaps API key not set. Will default to average carbon intensity.")
+        return has_key
 
     def carbon_intensity(self, g_location, time_dur=None):
         carbon_intensity = intensity.CarbonIntensity(g_location=g_location)
diff --git a/carbontracker/emissions/intensity/intensity.py b/carbontracker/emissions/intensity/intensity.py
index dd7d46c..4ecfe2f 100644
--- a/carbontracker/emissions/intensity/intensity.py
+++ b/carbontracker/emissions/intensity/intensity.py
@@ -98,12 +98,13 @@ def set_default_message(self):
         self.message = default_intensity["description"]
 
 
-def carbon_intensity(logger, time_dur=None):
-    fetchers = [
-        electricitymaps.ElectricityMap(),
-        energidataservice.EnergiDataService(),
-        carbonintensitygb.CarbonIntensityGB(),
-    ]
+def carbon_intensity(logger, time_dur=None, fetchers=None):
+    if fetchers is None:
+        fetchers = [
+            electricitymaps.ElectricityMap(logger=logger),
+            #energidataservice.EnergiDataService(), # UPDATE 2024: EnergiDataService/CarbonIntensityGB has been deprecated
+            #carbonintensitygb.CarbonIntensityGB(),
+        ]
 
     carbon_intensity = CarbonIntensity(default=True)
 
diff --git a/tests/intensity/test_electricitymaps.py b/tests/intensity/test_electricitymaps.py
index 7aa5021..72cc007 100644
--- a/tests/intensity/test_electricitymaps.py
+++ b/tests/intensity/test_electricitymaps.py
@@ -5,7 +5,8 @@
 
 class TestElectricityMap(unittest.TestCase):
     def setUp(self):
-        self.electricity_map = ElectricityMap()
+        self.logger = MagicMock()
+        self.electricity_map = ElectricityMap(logger=self.logger)
         self.g_location = MagicMock()
         self.g_location.lng = 0.0
         self.g_location.lat = 0.0
diff --git a/tests/intensity/test_intensity.py b/tests/intensity/test_intensity.py
index a9704a4..76ef709 100644
--- a/tests/intensity/test_intensity.py
+++ b/tests/intensity/test_intensity.py
@@ -215,7 +215,7 @@ def test_carbon_intensity_exception_carbonintensitygb(self, mock_geocoder, mock_
 
         logger = MagicMock()
 
-        result = carbon_intensity(logger)
+        result = carbon_intensity(logger, fetchers=[mock_carbonintensitygb()])
 
         self.assertEqual(result.carbon_intensity, 23.0)
         self.assertTrue(result.success)
@@ -230,7 +230,7 @@ def test_carbon_intensity_energidataservice(self, mock_energidataservice):
         mock_energidataservice.return_value.carbon_intensity.return_value = mock_result
 
         logger = MagicMock()
-        result = carbon_intensity(logger)
+        result = carbon_intensity(logger, fetchers=[mock_energidataservice()])
 
         self.assertEqual(result.carbon_intensity, 23.0)
         self.assertTrue(result.success)