diff --git a/co2_emission/co2_emission.py b/co2_emission/co2_emission.py
index fd98923..bf3c4d0 100644
--- a/co2_emission/co2_emission.py
+++ b/co2_emission/co2_emission.py
@@ -15,10 +15,9 @@ class Co2Emission:
 
   def __init__(self, building: Building, emissions_factor=None):
     if emissions_factor is None:
-      emissions_factor = {cte.GAS: 1,
-                          cte.ELECTRICITY: 1,
-                          cte.WOOD: 1,
-                          cte.DIESEL: 1,
+      emissions_factor = {cte.GAS: 0.2025,
+                          cte.ELECTRICITY: 0.00113,
+                          cte.DIESEL: 0.2683,
                           cte.RENEWABLE: 0}
     self._emissions_factor = emissions_factor
     self._building = building
diff --git a/dist/.gitignore b/dist/.gitignore
new file mode 100644
index 0000000..c96a04f
--- /dev/null
+++ b/dist/.gitignore
@@ -0,0 +1,2 @@
+*
+!.gitignore
\ No newline at end of file
diff --git a/dist/cerc-co2-emission-0.1.0.0.tar.gz b/dist/cerc-co2-emission-0.1.0.0.tar.gz
deleted file mode 100644
index cdad2ff..0000000
Binary files a/dist/cerc-co2-emission-0.1.0.0.tar.gz and /dev/null differ
diff --git a/dist/cerc_co2_emission-0.1.0.0-py3-none-any.whl b/dist/cerc_co2_emission-0.1.0.0-py3-none-any.whl
deleted file mode 100644
index 6dd7b65..0000000
Binary files a/dist/cerc_co2_emission-0.1.0.0-py3-none-any.whl and /dev/null differ