diff --git a/redfish-core/lib/chassis.hpp b/redfish-core/lib/chassis.hpp
index c51b150..2614115 100644
--- a/redfish-core/lib/chassis.hpp
+++ b/redfish-core/lib/chassis.hpp
@@ -403,6 +403,9 @@
                 asyncResp->res.jsonValue["ThermalSubsystem"]["@odata.id"] =
                     crow::utility::urlFromPieces("redfish", "v1", "Chassis",
                                                  chassisId, "ThermalSubsystem");
+                asyncResp->res.jsonValue["PowerSubsystem"]["@odata.id"] =
+                    crow::utility::urlFromPieces("redfish", "v1", "Chassis",
+                                                 chassisId, "PowerSubsystem");
 #endif
                 // SensorCollection
                 asyncResp->res.jsonValue["Sensors"]["@odata.id"] =
diff --git a/redfish-core/lib/power_subsystem.hpp b/redfish-core/lib/power_subsystem.hpp
new file mode 100644
index 0000000..c3b898c
--- /dev/null
+++ b/redfish-core/lib/power_subsystem.hpp
@@ -0,0 +1,64 @@
+#pragma once
+
+#include "app.hpp"
+#include "query.hpp"
+#include "registries/privilege_registry.hpp"
+#include "utils/chassis_utils.hpp"
+
+#include <memory>
+#include <optional>
+#include <string>
+
+namespace redfish
+{
+
+inline void doPowerSubsystemCollection(
+    const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
+    const std::string& chassisId,
+    const std::optional<std::string>& validChassisPath)
+{
+    if (!validChassisPath)
+    {
+        BMCWEB_LOG_ERROR << "Not a valid chassis ID" << chassisId;
+        messages::resourceNotFound(asyncResp->res, "Chassis", chassisId);
+        return;
+    }
+
+    asyncResp->res.jsonValue["@odata.type"] =
+        "#PowerSubsystem.v1_1_0.PowerSubsystem";
+    asyncResp->res.jsonValue["Name"] = "Power Subsystem";
+    asyncResp->res.jsonValue["Id"] = "PowerSubsystem";
+    asyncResp->res.jsonValue["@odata.id"] = crow::utility::urlFromPieces(
+        "redfish", "v1", "Chassis", chassisId, "PowerSubsystem");
+    asyncResp->res.jsonValue["Status"]["State"] = "Enabled";
+    asyncResp->res.jsonValue["Status"]["Health"] = "OK";
+
+    asyncResp->res.addHeader(
+        boost::beast::http::field::link,
+        "</redfish/v1/JsonSchemas/PowerSubsystem/PowerSubsystem.json>; rel=describedby");
+}
+
+inline void handlePowerSubsystemCollectionGet(
+    App& app, const crow::Request& req,
+    const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
+    const std::string& chassisId)
+{
+    if (!redfish::setUpRedfishRoute(app, req, asyncResp))
+    {
+        return;
+    }
+
+    redfish::chassis_utils::getValidChassisPath(
+        asyncResp, chassisId,
+        std::bind_front(doPowerSubsystemCollection, asyncResp, chassisId));
+}
+
+inline void requestRoutesPowerSubsystem(App& app)
+{
+    BMCWEB_ROUTE(app, "/redfish/v1/Chassis/<str>/PowerSubsystem/")
+        .privileges(redfish::privileges::getPowerSubsystem)
+        .methods(boost::beast::http::verb::get)(
+            std::bind_front(handlePowerSubsystemCollectionGet, std::ref(app)));
+}
+
+} // namespace redfish