diff --git a/pkgs/development/python-modules/co2signal/default.nix b/pkgs/development/python-modules/co2signal/default.nix
new file mode 100644
index 000000000000..2c7aeb4ceaeb
--- /dev/null
+++ b/pkgs/development/python-modules/co2signal/default.nix
@@ -0,0 +1,29 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, requests
+}:
+
+buildPythonPackage rec {
+  pname = "co2signal";
+  version = "0.4.2";
+
+  src = fetchPypi {
+    inherit version;
+    pname = "CO2Signal";
+    hash = "sha256-8YdYbknLICRrZloGUZuscv5e1LIDZBcCPKZs6EMaNuo=";
+  };
+
+  propagatedBuildInputs = [ requests ];
+  # Modules has no tests
+  doCheck = false;
+
+  pythonImportsCheck = [ "CO2Signal" ];
+
+  meta = with lib; {
+    description = "A package to access the CO2 Signal API ";
+    homepage = "https://github.com/danielsjf/CO2Signal";
+    license = licenses.gpl3Only;
+    maintainers = with maintainers; [ plabadens ];
+  };
+}
diff --git a/pkgs/servers/home-assistant/component-packages.nix b/pkgs/servers/home-assistant/component-packages.nix
index 2169c5c7b98f..7a325693a0ff 100644
--- a/pkgs/servers/home-assistant/component-packages.nix
+++ b/pkgs/servers/home-assistant/component-packages.nix
@@ -135,7 +135,7 @@
     "cloud" = ps: with ps; [ pyturbojpeg aiohttp-cors hass-nabucasa ];
     "cloudflare" = ps: with ps; [ pycfdns ];
     "cmus" = ps: with ps; [ ]; # missing inputs: pycmus
-    "co2signal" = ps: with ps; [ ]; # missing inputs: co2signal
+    "co2signal" = ps: with ps; [ co2signal ];
     "coinbase" = ps: with ps; [ ]; # missing inputs: coinbase
     "color_extractor" = ps: with ps; [ colorthief ];
     "comed_hourly_pricing" = ps: with ps; [ ];
@@ -1090,6 +1090,7 @@
     "climate"
     "cloud"
     "cloudflare"
+    "co2signal"
     "color_extractor"
     "comfoconnect"
     "command_line"
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index beb14495df4b..a1bbaeb7205f 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1705,6 +1705,8 @@ in {
 
   cnvkit = callPackage ../development/python-modules/cnvkit { };
 
+  co2signal = callPackage ../development/python-modules/co2signal { };
+
   coapthon3 = callPackage ../development/python-modules/coapthon3 { };
 
   coconut = callPackage ../development/python-modules/coconut { };