diff --git a/pkgs/development/python-modules/alphaessopenapi/default.nix b/pkgs/development/python-modules/alphaessopenapi/default.nix
new file mode 100644
index 000000000000..f0a28f9c2fce
--- /dev/null
+++ b/pkgs/development/python-modules/alphaessopenapi/default.nix
@@ -0,0 +1,38 @@
+{
+  buildPythonPackage,
+  fetchFromGitHub,
+  lib,
+  setuptools,
+  aiohttp,
+  voluptuous,
+}:
+buildPythonPackage rec {
+  pname = "alphaess";
+  version = "0.0.17";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "CharlesGillanders";
+    repo = "alphaess-openAPI";
+    tag = version;
+    sha256 = "sha256-ECOL1fCJDL9OEDKElw9yAzF5SF3RB/6TrgK26ddtSzw=";
+  };
+
+  build-system = [ setuptools ];
+
+  dependencies = [
+    aiohttp
+    voluptuous
+  ];
+
+  pythonImportsCheck = [
+    "alphaess"
+  ];
+
+  meta = {
+    homepage = "https://github.com/CharlesGillanders/alphaess-openAPI";
+    description = "Library that uses the Alpha ESS Open API to retrieve data on your Alpha ESS inverter, photovoltaic panels, and battery";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ benediktbroich ];
+  };
+}
diff --git a/pkgs/servers/home-assistant/custom-components/alphaess/default.nix b/pkgs/servers/home-assistant/custom-components/alphaess/default.nix
new file mode 100644
index 000000000000..0843db1e9e07
--- /dev/null
+++ b/pkgs/servers/home-assistant/custom-components/alphaess/default.nix
@@ -0,0 +1,29 @@
+{
+  buildHomeAssistantComponent,
+  fetchFromGitHub,
+  lib,
+  alphaessopenapi,
+}:
+buildHomeAssistantComponent rec {
+  owner = "CharlesGillanders";
+  domain = "alphaess";
+  version = "0.7.3";
+
+  src = fetchFromGitHub {
+    owner = "CharlesGillanders";
+    repo = "homeassistant-alphaESS";
+    tag = "v${version}";
+    hash = "sha256-xLZDmJMomk+C3l8+Of85vkbwrjQUnGlYL/UL31Kn5gc=";
+  };
+
+  dependencies = [
+    alphaessopenapi
+  ];
+
+  meta = {
+    description = "Monitor your energy generation, storage, and usage data using the official API from Alpha ESS";
+    homepage = "https://github.com/CharlesGillanders/homeassistant-alphaESS";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ benediktbroich ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 71cde6210b1a..7e047fd2d88f 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -690,6 +690,8 @@ self: super: with self; {
 
   alpha-vantage = callPackage ../development/python-modules/alpha-vantage { };
 
+  alphaessopenapi = callPackage ../development/python-modules/alphaessopenapi { };
+
   altair = callPackage ../development/python-modules/altair { };
 
   altcha = callPackage ../development/python-modules/altcha { };