diff --git a/.cspell/custom-dictionary-workspace.txt b/.cspell/custom-dictionary-workspace.txt
index 2961962f6..5d1b187a2 100644
--- a/.cspell/custom-dictionary-workspace.txt
+++ b/.cspell/custom-dictionary-workspace.txt
@@ -83,6 +83,9 @@ derating
 devcontainer
 devcontainers
 dexport
+deye
+DEYE
+Deye
 digestmod
 dimport
 dischargeenergytotal
@@ -96,6 +99,7 @@ dstart
 dwindow
 Eddi
 elif
+EMEA
 emszzzz
 enctype
 endfor
diff --git a/apps/predbat/components.py b/apps/predbat/components.py
index 6880453ce..6150e4242 100644
--- a/apps/predbat/components.py
+++ b/apps/predbat/components.py
@@ -31,6 +31,7 @@
 from web import WebInterface
 from ha import HAInterface, HAHistory
 from db_manager import DatabaseManager
+from deye import DeyeAPI
 from fox import FoxAPI
 from kraken import KrakenAPI
 from web_mcp import PredbatMCPServer
@@ -238,6 +239,35 @@
         },
         "phase": 1,
     },
+    "deye": {
+        "class": DeyeAPI,
+        "name": "DEYE Cloud",
+        "event_filter": "predbat_deye_",
+        "args": {
+            "key": {
+                "required": True,
+                "config": "deye_key",
+            },
+            "device_sn": {
+                "required": False,
+                "config": "deye_device_sn",
+            },
+            "automatic": {
+                "required": False,
+                "default": False,
+                "config": "deye_automatic",
+            },
+            "token_expires_at": {
+                "required": False,
+                "config": "deye_token_expires_at",
+            },
+            "token_hash": {
+                "required": False,
+                "config": "deye_token_hash",
+            },
+        },
+        "phase": 1,
+    },
     "kraken": {
         "class": KrakenAPI,
         "name": "Kraken Energy (EDF/E.ON)",
@@ -444,7 +474,11 @@ def initialize(self, only=None, phase=0):
                 default = arg_info.get("default", None)
                 indirect = arg_info.get("indirect", False)
                 config_late_resolve = arg_info.get("config_late_resolve", False)
-                if config_late_resolve:
+                if "value" in arg_info:
+                    # Pre-computed provider object injected directly — no config lookup needed.
+                    arg_dict[arg] = arg_info["value"]
+                    continue
+                elif config_late_resolve:
                     # Defer resolution of config value until later
                     arg_dict[arg] = arg_info["config"]
                     continue
diff --git a/apps/predbat/config.py b/apps/predbat/config.py
index fe483bbf6..ff2471a1a 100644
--- a/apps/predbat/config.py
+++ b/apps/predbat/config.py
@@ -2123,6 +2123,11 @@
     "solis_base_url": {"type": "string", "empty": False},
     "solis_control_enable": {"type": "boolean"},
     "solis_cloud_pv_load_ignore": {"type": "boolean"},
+    "deye_key": {"type": "string", "empty": False},
+    "deye_device_sn": {"type": "string|string_list", "empty": False},
+    "deye_automatic": {"type": "boolean"},
+    "deye_token_expires_at": {"type": "string", "empty": False},
+    "deye_token_hash": {"type": "string", "empty": False},
     "fox_key": {"type": "string", "empty": False},
     "fox_automatic": {"type": "boolean"},
     "fox_automatic_ignore_pv": {"type": "boolean"},
diff --git a/apps/predbat/deye.py b/apps/predbat/deye.py
new file mode 100644
index 000000000..c80aede9d
--- /dev/null
+++ b/apps/predbat/deye.py
@@ -0,0 +1,178 @@
+# -----------------------------------------------------------------------------
+# Predbat Home Battery System
+# Copyright Trefor Southwell 2026 - All Rights Reserved
+# This application maybe used for personal use only and not for commercial use
+# -----------------------------------------------------------------------------
+
+"""DEYE Cloud API integration.
+
+Cloud API client for DEYE inverters via the DeyeCloud OpenAPI (EMEA data centre).
+Supports real-time monitoring and Time-of-Use charge/discharge schedule control.
+The bearer token is injected by the PredBat SaaS platform and refreshed via
+the oauth-refresh edge function; this module never calls the token endpoint itself.
+"""
+
+import aiohttp
+import asyncio
+from datetime import datetime
+from component_base import ComponentBase
+from oauth_mixin import OAuthMixin
+
+DEYE_BASE_URL = "https://eu1-developer.deyecloud.com"
+DEYE_TIMEOUT = 30
+DEYE_RETRIES = 3
+
+
+class DeyeAPI(ComponentBase, OAuthMixin):
+    """DEYE Cloud API component for PredBat SaaS."""
+
+    def initialise(self):
+        """Initialise the DEYE API component."""
+        self.log("Info: DeyeAPI initialising")
+        self.device_sn = self.get_arg("device_sn", "")
+        if isinstance(self.device_sn, list):
+            self.device_sn = self.device_sn[0] if self.device_sn else ""
+
+        key = self.get_arg("key", "")
+        token_expires_at = self.get_arg("token_expires_at", None)
+        token_hash = self.get_arg("token_hash", "")
+        self._init_oauth(
+            auth_method="oauth",
+            key=key,
+            token_expires_at=token_expires_at,
+            provider_name="deye",
+        )
+        self.token_hash = token_hash
+        self.cached_values = {}
+
+    def _auth_headers(self):
+        """Build Authorization header for a DEYE API request."""
+        return {
+            "Content-Type": "application/json",
+            "Authorization": f"Bearer {self.access_token}",
+        }
+
+    async def _post(self, path: str, body: dict) -> dict:
+        """POST to DEYE API, retrying on transient errors. Returns parsed JSON or raises."""
+        url = f"{DEYE_BASE_URL}{path}"
+        timeout = aiohttp.ClientTimeout(total=DEYE_TIMEOUT)
+        last_err = None
+
+        for attempt in range(DEYE_RETRIES):
+            try:
+                async with aiohttp.ClientSession(timeout=timeout) as session:
+                    async with session.post(url, headers=self._auth_headers(), json=body) as resp:
+                        if resp.status in (401, 403):
+                            self.log(f"Warn: DEYE API 401/403 on {path}, attempt {attempt + 1}")
+                            if await self.handle_oauth_401():
+                                continue  # retry with refreshed token
+                            raise RuntimeError(f"DEYE OAuth auth failed on {path}")
+                        resp.raise_for_status()
+                        return await resp.json()
+            except (aiohttp.ClientError, asyncio.TimeoutError) as e:
+                last_err = e
+                self.log(f"Warn: DEYE API network error on {path} attempt {attempt + 1}: {e}")
+                await asyncio.sleep(2**attempt)
+
+        raise RuntimeError(f"DEYE API failed after {DEYE_RETRIES} retries on {path}: {last_err}")
+
+    async def fetch_device_data(self) -> dict:
+        """Fetch latest real-time data for the configured device."""
+        data = await self._post("/v1.0/device/latest", {"deviceSnList": [self.device_sn]})
+        if not data.get("success"):
+            raise RuntimeError(f"DEYE device/latest failed: {data.get('msg', 'unknown')}")
+
+        raw_list = data.get("data") or []
+        if not raw_list:
+            return {}
+
+        device = raw_list[0]
+        result = {
+            "soc": float(device.get("batteryPower", {}).get("soc", 0)),
+            "battery_power": float(device.get("batteryPower", {}).get("power", 0)),
+            "grid_power": float(device.get("gridPower", {}).get("power", 0)),
+            "pv_power": float(device.get("pvPower", {}).get("power", 0)),
+            "load_power": float(device.get("loadOrEpsPower", {}).get("power", 0)),
+        }
+        self.cached_values[self.device_sn] = result
+        return result
+
+    async def set_tou_schedule(self, slots: list) -> bool:
+        """Write a Time-of-Use schedule to the inverter."""
+        if not slots:
+            return False
+
+        payload = {
+            "deviceSn": self.device_sn,
+            "timeUseSettingItems": slots,
+            "timeoutSeconds": 30,
+        }
+        resp = await self._post("/v1.0/order/sys/tou/update", payload)
+        if not resp.get("success"):
+            self.log(f"Warn: DEYE TOU update failed: {resp.get('msg', 'unknown')}")
+            return False
+
+        order_id = resp.get("data", {}).get("orderId")
+        if order_id:
+            self.log(f"Info: DEYE TOU update submitted, orderId={order_id}")
+        return True
+
+    async def run(self, seconds: int = 0, first: bool = False) -> None:
+        """Main component loop — fetch data and apply charge schedule."""
+        if not await self.check_and_refresh_oauth_token():
+            self.log("Warn: DEYE OAuth token invalid, skipping run")
+            return
+
+        if not self.device_sn:
+            self.log("Warn: DEYE device_sn not configured, skipping run")
+            return
+
+        try:
+            device_data = await self.fetch_device_data()
+            self.log(f"Info: DEYE SoC={device_data.get('soc', '?')}% " f"battery={device_data.get('battery_power', '?')}W " f"grid={device_data.get('grid_power', '?')}W " f"pv={device_data.get('pv_power', '?')}W")
+        except Exception as e:
+            self.log(f"Warn: DEYE data fetch failed: {e}")
+
+    async def charge(self, charge_start: datetime, charge_end: datetime, power_w: int, soc_target: int) -> None:
+        """Schedule a grid charge window on the inverter."""
+        slots = [
+            {
+                "time": charge_start.strftime("%H:%M"),
+                "soc": soc_target,
+                "power": power_w,
+                "enableGridCharge": True,
+                "enableGeneration": True,
+            },
+            {
+                "time": charge_end.strftime("%H:%M"),
+                "soc": 10,
+                "power": power_w,
+                "enableGridCharge": False,
+                "enableGeneration": True,
+            },
+        ]
+        await self.set_tou_schedule(slots)
+
+    async def discharge(self, discharge_start: datetime, discharge_end: datetime, power_w: int) -> None:
+        """Schedule a forced discharge window on the inverter."""
+        slots = [
+            {
+                "time": discharge_start.strftime("%H:%M"),
+                "soc": 10,
+                "power": power_w,
+                "enableGridCharge": False,
+                "enableGeneration": True,
+            },
+            {
+                "time": discharge_end.strftime("%H:%M"),
+                "soc": 10,
+                "power": power_w,
+                "enableGridCharge": False,
+                "enableGeneration": True,
+            },
+        ]
+        await self.set_tou_schedule(slots)
+
+    async def final(self) -> None:
+        """Cleanup on shutdown."""
+        self.log("Info: DeyeAPI shutdown")