diff --git a/pkgs/development/python-modules/omnikinverter/default.nix b/pkgs/development/python-modules/omnikinverter/default.nix
new file mode 100644
index 000000000000..6f347d9672a0
--- /dev/null
+++ b/pkgs/development/python-modules/omnikinverter/default.nix
@@ -0,0 +1,59 @@
+{ lib
+, aiohttp
+, aresponses
+, buildPythonPackage
+, fetchFromGitHub
+, poetry-core
+, pytest-asyncio
+, pytestCheckHook
+, pythonOlder
+, yarl
+}:
+
+buildPythonPackage rec {
+  pname = "omnikinverter";
+  version = "0.6.2";
+  format = "pyproject";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "klaasnicolaas";
+    repo = "python-omnikinverter";
+    rev = "v${version}";
+    sha256 = "sha256-NnwjiaFUi2vzORu8sndtfdVpZEAIMCvT+9VEr2ZOx3k=";
+  };
+
+  nativeBuildInputs = [
+    poetry-core
+  ];
+
+  propagatedBuildInputs = [
+    aiohttp
+    yarl
+  ];
+
+  checkInputs = [
+    aresponses
+    pytest-asyncio
+    pytestCheckHook
+  ];
+
+  postPatch = ''
+    # Upstream doesn't set a version for the pyproject.toml
+    substituteInPlace pyproject.toml \
+      --replace "0.0.0" "${version}" \
+      --replace "--cov" ""
+  '';
+
+  pythonImportsCheck = [
+    "omnikinverter"
+  ];
+
+  meta = with lib; {
+    description = "Python module for the Omnik Inverter";
+    homepage = "https://github.com/klaasnicolaas/python-omnikinverter";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 41656c24a549..86bff0c58ff8 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -5423,6 +5423,8 @@ in {
 
   omegaconf = callPackage ../development/python-modules/omegaconf { };
 
+  omnikinverter = callPackage ../development/python-modules/omnikinverter { };
+
   omnilogic = callPackage ../development/python-modules/omnilogic { };
 
   ondilo = callPackage ../development/python-modules/ondilo { };