fix: various fixes

2026-08-21 11:49:49 +02:00
parent 161b226db9
commit 43fda71c1b
10 changed files with 441 additions and 185 deletions
--- a/energy-management/.env.example
+++ b/energy-management/.env.example
@@ -13,6 +13,18 @@ INFLUX_FIELD_UNIT=W
 HA_URL=http://homeassistant.local:8123
 HA_TOKEN=replace-with-a-long-lived-access-token

+# Solar inverter production, read from InfluxDB (same bucket as the house
+# power series above). Its latest sample is compared against
+# SOLAR_PRODUCTION_THRESHOLD_W to gate "only when sun" devices. Leave
+# SOLAR_INFLUX_ENTITY_ID unset to fall back to HA's sun.sun (astronomical
+# above/below horizon).
+SOLAR_INFLUX_MEASUREMENT=power
+SOLAR_INFLUX_DOMAIN=sensor
+SOLAR_INFLUX_ENTITY_ID=inverter_pv_power
+SOLAR_INFLUX_FIELD=value
+SOLAR_INFLUX_FIELD_UNIT=W
+SOLAR_PRODUCTION_THRESHOLD_W=50
+
 # Capacity tariff target: keep every 15-minute block's average under this many kW
 TARGET_KW=5

--- a/energy-management/backend/src/control/loop.ts
+++ b/energy-management/backend/src/control/loop.ts
@@ -6,7 +6,7 @@ export interface LoopDecisionInput {
  nowMs: number;
  /** Only restore once projected power is at least this far below target, to avoid flapping. */
  restoreMarginW: number;
-  /** Whether HA's sun.sun entity currently reports above_horizon. */
+  /** Whether the solar inverter is currently producing power (see HomeAssistantClient.isSolarProducing). */
  sunUp: boolean;
 }

--- a/energy-management/backend/src/control/runner.ts
+++ b/energy-management/backend/src/control/runner.ts
@@ -1,10 +1,14 @@
 import type { QueryApi } from "@influxdata/influxdb-client";
 import type { Env } from "../env.js";
-import { fetchPowerSamplesSince } from "../influx/power.js";
+import {
+  fetchLatestPowerSample,
+  fetchLatestSolarProductionSample,
+  fetchPowerSamplesSince,
+} from "../influx/power.js";
 import { HomeAssistantClient } from "../homeassistant/client.js";
 import { getDeviceStatus, restoreDevice, shedDevice } from "../homeassistant/devices.js";
 import type { Store } from "../db/store.js";
-import type { DeviceStatus, QuarterHourStatus } from "../types.js";
+import type { CurrentReadings, DeviceStatus, QuarterHourStatus } from "../types.js";
 import { blockStartFor, computeQuarterHourStatus } from "./quarterHour.js";
 import { decideControlAction } from "./loop.js";

@@ -19,17 +23,24 @@ export class ControlLoopRunner {
    private readonly log: { info: (o: unknown, msg?: string) => void; error: (o: unknown, msg?: string) => void },
  ) {}

-  async getStatus(): Promise<{ quarterHour: QuarterHourStatus; devices: DeviceStatus[] }> {
+  async getStatus(): Promise<{ quarterHour: QuarterHourStatus; devices: DeviceStatus[]; current: CurrentReadings }> {
    const nowMs = Date.now();
    const blockStart = blockStartFor(nowMs);
    const targetW = this.store.getTargetW();

-    const samples = await fetchPowerSamplesSince(this.queryApi, this.env, blockStart);
+    const [samples, latestPower, latestSolar, devices] = await Promise.all([
+      fetchPowerSamplesSince(this.queryApi, this.env, blockStart),
+      fetchLatestPowerSample(this.queryApi, this.env),
+      fetchLatestSolarProductionSample(this.queryApi, this.env),
+      this.loadDeviceStatuses(),
+    ]);
    const quarterHour = computeQuarterHourStatus(samples, nowMs, targetW);
+    const current: CurrentReadings = {
+      powerW: latestPower?.watts ?? null,
+      solarW: latestSolar?.watts ?? null,
+    };

-    const devices = await this.loadDeviceStatuses();
-
-    return { quarterHour, devices };
+    return { quarterHour, devices, current };
  }

  private async loadDeviceStatuses(): Promise<DeviceStatus[]> {
@@ -42,6 +53,26 @@ export class ControlLoopRunner {
    );
  }

+  /**
+   * Whether the solar inverter is currently producing power, used to gate
+   * `onlyWhenSun` devices. Reads the configured InfluxDB solar production
+   * series and compares its latest sample against SOLAR_PRODUCTION_THRESHOLD_W.
+   * Falls back to HA's sun.sun (astronomical above/below horizon) when no
+   * solar production series is configured, or if either read fails.
+   */
+  private async isSolarProducing(): Promise<boolean> {
+    try {
+      const sample = await fetchLatestSolarProductionSample(this.queryApi, this.env);
+      if (sample) return sample.watts >= this.env.SOLAR_PRODUCTION_THRESHOLD_W;
+    } catch (err) {
+      this.log.error({ err }, "failed to read solar production series; falling back to sun.sun");
+    }
+    return this.ha.isSunUp().catch((err) => {
+      this.log.error({ err }, "failed to read sun.sun state; treating as unrestricted");
+      return true;
+    });
+  }
+
  async tick(): Promise<void> {
    const nowMs = Date.now();
    const { quarterHour, devices } = await this.getStatus();
@@ -50,10 +81,7 @@ export class ControlLoopRunner {
    // as that block's final average, with no separate "finalize" step needed.
    this.store.upsertBlockHistory(quarterHour.blockStartMs, quarterHour.runningAverageW);

-    const sunUp = await this.ha.isSunUp().catch((err) => {
-      this.log.error({ err }, "failed to read sun.sun state; treating as unrestricted");
-      return true;
-    });
+    const sunUp = await this.isSolarProducing();
    const decision = decideControlAction({ status: quarterHour, devices, nowMs, restoreMarginW: RESTORE_MARGIN_W, sunUp });
    if (!decision) return;

--- a/energy-management/backend/src/env.ts
+++ b/energy-management/backend/src/env.ts
@@ -20,6 +20,15 @@ const envSchema = z.object({
  INFLUX_FIELD_UNIT: z.enum(["W", "kW"]).default("W"),
  HA_URL: z.string().url(),
  HA_TOKEN: z.string().min(1),
+  // Solar inverter production, read from InfluxDB (same shape as the house
+  // power series above). Leave SOLAR_INFLUX_ENTITY_ID unset to fall back to
+  // sun.sun (astronomical day/night).
+  SOLAR_INFLUX_MEASUREMENT: z.string().default("power"),
+  SOLAR_INFLUX_DOMAIN: z.string().optional(),
+  SOLAR_INFLUX_ENTITY_ID: z.string().optional(),
+  SOLAR_INFLUX_FIELD: z.string().default("value"),
+  SOLAR_INFLUX_FIELD_UNIT: z.enum(["W", "kW"]).default("W"),
+  SOLAR_PRODUCTION_THRESHOLD_W: z.coerce.number().default(50),
  TARGET_KW: z.coerce.number().positive(),
  DB_PATH: z.string().default("./data/energy.db"),
  CONTROL_LOOP_INTERVAL_MS: z.coerce.number().default(10_000),
--- a/energy-management/backend/src/influx/power.ts
+++ b/energy-management/backend/src/influx/power.ts
@@ -2,27 +2,40 @@ import type { QueryApi } from "@influxdata/influxdb-client";
 import type { Env } from "../env.js";
 import type { PowerSample } from "../types.js";

+interface SeriesConfig {
+        bucket: string;
+        measurement: string;
+        field: string;
+        fieldUnit: "W" | "kW";
+        domain?: string;
+        entityId?: string;
+}
+
 /**
- * Fetches raw power samples between `sinceMs` and now.
- * Converts the configured field to watts based on INFLUX_FIELD_UNIT.
+ * Fetches raw samples for one series between `sinceMs` and now, converting
+ * the configured field to watts based on `fieldUnit`.
 */
-export async function fetchPowerSamplesSince(
+async function fetchSeriesSince(
        queryApi: QueryApi,
-        env: Env,
+        config: SeriesConfig,
        sinceMs: number,
 ): Promise<PowerSample[]> {
        const sinceIso = new Date(sinceMs).toISOString();
+        const domainFilter = config.domain
+                ? `|> filter(fn: (r) => r["domain"] == "${config.domain}")\n      `
+                : "";
+        const entityFilter = config.entityId
+                ? `|> filter(fn: (r) => r["entity_id"] == "${config.entityId}")\n      `
+                : "";
        const flux = `
-    from(bucket: "${env.INFLUX_BUCKET}")
+    from(bucket: "${config.bucket}")
      |> range(start: ${sinceIso})
-      |> filter(fn: (r) => r["_measurement"] == "${env.INFLUX_FIELD_UNIT}")
-      |> filter(fn: (r) => r["_field"] == "${env.INFLUX_FIELD}")
-      |> filter(fn: (r) => r["domain"] == "${env.INFLUX_DOMAIN}")
-      |> filter(fn: (r) => r["entity_id"] == "${env.INFLUX_ENTITY_ID}")
-      |> sort(columns: ["_time"])
+      |> filter(fn: (r) => r["_measurement"] == "${config.fieldUnit}")
+      |> filter(fn: (r) => r["_field"] == "${config.field}")
+      ${domainFilter}${entityFilter}|> sort(columns: ["_time"])
  `;

-        const unitMultiplier = env.INFLUX_FIELD_UNIT === "kW" ? 1000 : 1;
+        const unitMultiplier = config.fieldUnit === "kW" ? 1000 : 1;
        const samples: PowerSample[] = [];

        for await (const { values, tableMeta } of queryApi.iterateRows(flux)) {
@@ -36,6 +49,29 @@ export async function fetchPowerSamplesSince(
        return samples;
 }

+function housePowerConfig(env: Env): SeriesConfig {
+        return {
+                bucket: env.INFLUX_BUCKET,
+                measurement: env.INFLUX_MEASUREMENT,
+                field: env.INFLUX_FIELD,
+                fieldUnit: env.INFLUX_FIELD_UNIT,
+                domain: env.INFLUX_DOMAIN,
+                entityId: env.INFLUX_ENTITY_ID,
+        };
+}
+
+/**
+ * Fetches raw power samples between `sinceMs` and now.
+ * Converts the configured field to watts based on INFLUX_FIELD_UNIT.
+ */
+export async function fetchPowerSamplesSince(
+        queryApi: QueryApi,
+        env: Env,
+        sinceMs: number,
+): Promise<PowerSample[]> {
+        return fetchSeriesSince(queryApi, housePowerConfig(env), sinceMs);
+}
+
 /** Fetches the single most recent power sample, if any exists within the lookback window. */
 export async function fetchLatestPowerSample(
        queryApi: QueryApi,
@@ -49,3 +85,26 @@ export async function fetchLatestPowerSample(
        );
        return samples.length > 0 ? samples[samples.length - 1] : null;
 }
+
+/**
+ * Fetches the most recent solar production sample from InfluxDB, if any
+ * exists within the lookback window. Returns null when no solar production
+ * series is configured (SOLAR_INFLUX_ENTITY_ID unset).
+ */
+export async function fetchLatestSolarProductionSample(
+        queryApi: QueryApi,
+        env: Env,
+        lookbackMs = 60_000,
+): Promise<PowerSample | null> {
+        if (!env.SOLAR_INFLUX_ENTITY_ID) return null;
+        const config: SeriesConfig = {
+                bucket: env.INFLUX_BUCKET,
+                measurement: env.SOLAR_INFLUX_MEASUREMENT,
+                field: env.SOLAR_INFLUX_FIELD,
+                fieldUnit: env.SOLAR_INFLUX_FIELD_UNIT,
+                domain: env.SOLAR_INFLUX_DOMAIN,
+                entityId: env.SOLAR_INFLUX_ENTITY_ID,
+        };
+        const samples = await fetchSeriesSince(queryApi, config, Date.now() - lookbackMs);
+        return samples.length > 0 ? samples[samples.length - 1] : null;
+}
--- a/energy-management/backend/src/types.ts
+++ b/energy-management/backend/src/types.ts
@@ -10,7 +10,7 @@ export interface DeviceConfig {
  maxValue: number; // for "number" kind: normal operating value; for "switch": unused (1)
  dwellSeconds: number; // minimum time between state changes for this device
  manualOverride: boolean; // if true, control loop leaves this device alone
-  onlyWhenSun: boolean; // if true, device may only be enabled while sun.sun reports above_horizon
+  onlyWhenSun: boolean; // if true, device may only be enabled while the solar inverter is producing power
  fromTime: string | null; // "HH:MM", start of allowed enable window (local time), null = no restriction
  toTime: string | null; // "HH:MM", end of allowed enable window (local time), null = no restriction
  enableUrl: string | null; // if set, called (HTTP POST) to enable/restore the device instead of Home Assistant
@@ -39,6 +39,11 @@ export interface QuarterHourStatus {
  overTarget: boolean;
 }

+export interface CurrentReadings {
+  powerW: number | null; // most recent house power sample, null if none within lookback
+  solarW: number | null; // most recent solar production sample, null if unconfigured or none within lookback
+}
+
 export interface ControlAction {
  timestampMs: number;
  entityId: string;
--- a/energy-management/frontend/src/Dashboard.tsx
+++ b/energy-management/frontend/src/Dashboard.tsx
@@ -1,11 +1,24 @@
 import { useEffect, useState } from "react";
-import { api, type BlockHistoryPoint, type ControlAction, type DeviceStatus, type QuarterHourStatus } from "./api";
+import {
+  api,
+  type BlockHistoryPoint,
+  type ControlAction,
+  type CurrentReadings,
+  type DeviceStatus,
+  type QuarterHourStatus,
+} from "./api";
 import { PeakHistoryChart } from "./PeakHistoryChart";

 const THIRTY_DAYS_MS = 30 * 24 * 60 * 60 * 1000;

+function formatW(watts: number | null): string {
+  if (watts == null) return "—";
+  return Math.abs(watts) >= 1000 ? `${(watts / 1000).toFixed(2)} kW` : `${Math.round(watts)} W`;
+}
+
 export function Dashboard() {
  const [quarterHour, setQuarterHour] = useState<QuarterHourStatus | null>(null);
+  const [current, setCurrent] = useState<CurrentReadings | null>(null);
  const [devices, setDevices] = useState<DeviceStatus[]>([]);
  const [history, setHistory] = useState<BlockHistoryPoint[]>([]);
  const [actions, setActions] = useState<ControlAction[]>([]);
@@ -23,6 +36,7 @@ export function Dashboard() {
        ]);
        if (cancelled) return;
        setQuarterHour(status.quarterHour);
+        setCurrent(status.current);
        setDevices(status.devices);
        setHistory(hist);
        setActions(acts);
@@ -58,6 +72,20 @@ export function Dashboard() {

  return (
    <>
+      <div className="card">
+        <h2>Live readings</h2>
+        <div className="stat-grid">
+          <div className="stat-tile">
+            <div className="stat-label">Power usage</div>
+            <div className="stat-value">{formatW(current?.powerW ?? null)}</div>
+          </div>
+          <div className="stat-tile">
+            <div className="stat-label">Solar generation</div>
+            <div className="stat-value">{formatW(current?.solarW ?? null)}</div>
+          </div>
+        </div>
+      </div>
+
      <div className="card">
        <h2>Current quarter-hour block</h2>
        <div className="hero-figure">{(quarterHour.projectedAverageW / 1000).toFixed(2)} kW</div>
--- a/energy-management/frontend/src/Devices.tsx
+++ b/energy-management/frontend/src/Devices.tsx
@@ -1,7 +1,9 @@
 import { useEffect, useState, type FormEvent } from "react";
 import { api, type ControlKind, type DeviceConfig } from "./api";

-const emptyForm = {
+type DeviceFormValues = Omit<DeviceConfig, "id">;
+
+const emptyForm: DeviceFormValues = {
  entityId: "",
  name: "",
  kind: "switch" as ControlKind,
@@ -11,16 +13,158 @@ const emptyForm = {
  dwellSeconds: 300,
  manualOverride: false,
  onlyWhenSun: false,
-  fromTime: null as string | null,
-  toTime: null as string | null,
-  enableUrl: null as string | null,
-  disableUrl: null as string | null,
+  fromTime: null,
+  toTime: null,
+  enableUrl: null,
+  disableUrl: null,
 };

+function DeviceFields({
+  values,
+  onChange,
+}: {
+  values: DeviceFormValues;
+  onChange: (next: DeviceFormValues) => void;
+}) {
+  return (
+    <div className="form-grid">
+      <label>
+        Name
+        <input
+          value={values.name}
+          onChange={(e) => onChange({ ...values, name: e.target.value })}
+          required
+        />
+      </label>
+      <label>
+        Home Assistant entity ID
+        <input
+          value={values.entityId}
+          onChange={(e) => onChange({ ...values, entityId: e.target.value })}
+          placeholder="switch.ev_charger"
+          required
+        />
+      </label>
+      <label>
+        Control type
+        <select
+          value={values.kind}
+          onChange={(e) =>
+            onChange({ ...values, kind: e.target.value as ControlKind })
+          }
+        >
+          <option value="switch">Switch (on/off)</option>
+          <option value="number">Number (set-point)</option>
+        </select>
+      </label>
+      <label>
+        Priority (lower = shed first)
+        <input
+          type="number"
+          value={values.priority}
+          onChange={(e) =>
+            onChange({ ...values, priority: Number(e.target.value) })
+          }
+        />
+      </label>
+      {values.kind === "number" && (
+        <>
+          <label>
+            Min value (shed target)
+            <input
+              type="number"
+              value={values.minValue}
+              onChange={(e) =>
+                onChange({ ...values, minValue: Number(e.target.value) })
+              }
+            />
+          </label>
+          <label>
+            Max value (normal)
+            <input
+              type="number"
+              value={values.maxValue}
+              onChange={(e) =>
+                onChange({ ...values, maxValue: Number(e.target.value) })
+              }
+            />
+          </label>
+        </>
+      )}
+      <label>
+        Min dwell time (seconds)
+        <input
+          type="number"
+          value={values.dwellSeconds}
+          onChange={(e) =>
+            onChange({ ...values, dwellSeconds: Number(e.target.value) })
+          }
+        />
+      </label>
+      <label>
+        Only enable if sun
+        <input
+          type="checkbox"
+          checked={values.onlyWhenSun}
+          onChange={(e) =>
+            onChange({ ...values, onlyWhenSun: e.target.checked })
+          }
+        />
+      </label>
+      <label>
+        From (allowed window start)
+        <input
+          type="time"
+          value={values.fromTime ?? ""}
+          onChange={(e) =>
+            onChange({ ...values, fromTime: e.target.value || null })
+          }
+        />
+      </label>
+      <label>
+        To (allowed window end)
+        <input
+          type="time"
+          value={values.toTime ?? ""}
+          onChange={(e) =>
+            onChange({ ...values, toTime: e.target.value || null })
+          }
+        />
+      </label>
+      <label>
+        Custom enable endpoint (optional)
+        <input
+          type="url"
+          value={values.enableUrl ?? ""}
+          onChange={(e) =>
+            onChange({ ...values, enableUrl: e.target.value || null })
+          }
+          placeholder="https://example.local/device/on"
+        />
+      </label>
+      <label>
+        Custom disable endpoint (optional)
+        <input
+          type="url"
+          value={values.disableUrl ?? ""}
+          onChange={(e) =>
+            onChange({ ...values, disableUrl: e.target.value || null })
+          }
+          placeholder="https://example.local/device/off"
+        />
+      </label>
+    </div>
+  );
+}
+
 export function Devices() {
  const [devices, setDevices] = useState<DeviceConfig[]>([]);
  const [form, setForm] = useState(emptyForm);
  const [error, setError] = useState<string | null>(null);
+  const [editingId, setEditingId] = useState<number | null>(null);
+  const [editForm, setEditForm] = useState<DeviceFormValues>(emptyForm);
+  const [editError, setEditError] = useState<string | null>(null);
+  const [saving, setSaving] = useState(false);

  async function refresh() {
    setDevices(await api.getDevices());
@@ -53,138 +197,40 @@ export function Devices() {
    await refresh();
  }

+  function startEdit(d: DeviceConfig) {
+    const { id: _id, ...rest } = d;
+    setEditForm(rest);
+    setEditingId(d.id);
+    setEditError(null);
+  }
+
+  function cancelEdit() {
+    setEditingId(null);
+    setEditError(null);
+  }
+
+  async function saveEdit(e: FormEvent) {
+    e.preventDefault();
+    if (editingId == null) return;
+    setSaving(true);
+    try {
+      await api.updateDevice(editingId, editForm);
+      await refresh();
+      setEditingId(null);
+      setEditError(null);
+    } catch (err) {
+      setEditError(err instanceof Error ? err.message : "Failed to save device");
+    } finally {
+      setSaving(false);
+    }
+  }
+
  return (
    <>
      <div className="card">
        <h2>Add device</h2>
        <form onSubmit={handleCreate}>
-          <div className="form-grid">
-            <label>
-              Name
-              <input
-                value={form.name}
-                onChange={(e) => setForm({ ...form, name: e.target.value })}
-                required
-              />
-            </label>
-            <label>
-              Home Assistant entity ID
-              <input
-                value={form.entityId}
-                onChange={(e) => setForm({ ...form, entityId: e.target.value })}
-                placeholder="switch.ev_charger"
-                required
-              />
-            </label>
-            <label>
-              Control type
-              <select
-                value={form.kind}
-                onChange={(e) =>
-                  setForm({ ...form, kind: e.target.value as ControlKind })
-                }
-              >
-                <option value="switch">Switch (on/off)</option>
-                <option value="number">Number (set-point)</option>
-              </select>
-            </label>
-            <label>
-              Priority (lower = shed first)
-              <input
-                type="number"
-                value={form.priority}
-                onChange={(e) =>
-                  setForm({ ...form, priority: Number(e.target.value) })
-                }
-              />
-            </label>
-            {form.kind === "number" && (
-              <>
-                <label>
-                  Min value (shed target)
-                  <input
-                    type="number"
-                    value={form.minValue}
-                    onChange={(e) =>
-                      setForm({ ...form, minValue: Number(e.target.value) })
-                    }
-                  />
-                </label>
-                <label>
-                  Max value (normal)
-                  <input
-                    type="number"
-                    value={form.maxValue}
-                    onChange={(e) =>
-                      setForm({ ...form, maxValue: Number(e.target.value) })
-                    }
-                  />
-                </label>
-              </>
-            )}
-            <label>
-              Min dwell time (seconds)
-              <input
-                type="number"
-                value={form.dwellSeconds}
-                onChange={(e) =>
-                  setForm({ ...form, dwellSeconds: Number(e.target.value) })
-                }
-              />
-            </label>
-            <label>
-              Only enable if sun
-              <input
-                type="checkbox"
-                checked={form.onlyWhenSun}
-                onChange={(e) =>
-                  setForm({ ...form, onlyWhenSun: e.target.checked })
-                }
-              />
-            </label>
-            <label>
-              From (allowed window start)
-              <input
-                type="time"
-                value={form.fromTime ?? ""}
-                onChange={(e) =>
-                  setForm({ ...form, fromTime: e.target.value || null })
-                }
-              />
-            </label>
-            <label>
-              To (allowed window end)
-              <input
-                type="time"
-                value={form.toTime ?? ""}
-                onChange={(e) =>
-                  setForm({ ...form, toTime: e.target.value || null })
-                }
-              />
-            </label>
-            <label>
-              Custom enable endpoint (optional)
-              <input
-                type="url"
-                value={form.enableUrl ?? ""}
-                onChange={(e) =>
-                  setForm({ ...form, enableUrl: e.target.value || null })
-                }
-                placeholder="https://example.local/device/on"
-              />
-            </label>
-            <label>
-              Custom disable endpoint (optional)
-              <input
-                type="url"
-                value={form.disableUrl ?? ""}
-                onChange={(e) =>
-                  setForm({ ...form, disableUrl: e.target.value || null })
-                }
-                placeholder="https://example.local/device/off"
-              />
-            </label>
-          </div>
+          <DeviceFields values={form} onChange={setForm} />
          <p style={{ color: "var(--text-muted)", fontSize: 13 }}>
            Set both custom endpoints to control this device over plain HTTP
            (POST) instead of Home Assistant. The entity ID above is still used
@@ -211,35 +257,66 @@ export function Devices() {
          devices
            .slice()
            .sort((a, b) => a.priority - b.priority)
-            .map((d) => (
-              <div className="device-row" key={d.id}>
-                <div>
-                  <div className="device-name">{d.name}</div>
-                  <div className="device-meta">
-                    {d.entityId} · {d.kind} · priority {d.priority} · dwell{" "}
-                    {d.dwellSeconds}s{d.onlyWhenSun && " · sun only"}
-                    {d.fromTime && d.toTime && ` · ${d.fromTime}–${d.toTime}`}
-                    {d.enableUrl && d.disableUrl && " · custom endpoints"}
-                    <div>{d.enableUrl}</div>
-                    <div>{d.disableUrl}</div>
+            .map((d) =>
+              editingId === d.id ? (
+                <form
+                  className="device-row device-row-editing"
+                  key={d.id}
+                  onSubmit={saveEdit}
+                >
+                  <DeviceFields values={editForm} onChange={setEditForm} />
+                  {editError && (
+                    <p style={{ color: "var(--status-critical)", fontSize: 13 }}>
+                      {editError}
+                    </p>
+                  )}
+                  <div style={{ display: "flex", gap: 8 }}>
+                    <button className="primary" type="submit" disabled={saving}>
+                      {saving ? "Saving…" : "Save"}
+                    </button>
+                    <button
+                      className="secondary"
+                      type="button"
+                      onClick={cancelEdit}
+                      disabled={saving}
+                    >
+                      Cancel
+                    </button>
+                  </div>
+                </form>
+              ) : (
+                <div className="device-row" key={d.id}>
+                  <div>
+                    <div className="device-name">{d.name}</div>
+                    <div className="device-meta">
+                      {d.entityId} · {d.kind} · priority {d.priority} · dwell{" "}
+                      {d.dwellSeconds}s{d.onlyWhenSun && " · sun only"}
+                      {d.fromTime && d.toTime && ` · ${d.fromTime}–${d.toTime}`}
+                      {d.enableUrl && d.disableUrl && " · custom endpoints"}
+                      <div>{d.enableUrl}</div>
+                      <div>{d.disableUrl}</div>
+                    </div>
+                  </div>
+                  <div style={{ display: "flex", gap: 8, alignItems: "center" }}>
+                    {d.manualOverride && (
+                      <span className="badge override">Manual</span>
+                    )}
+                    <button
+                      className="secondary"
+                      onClick={() => toggleOverride(d)}
+                    >
+                      {d.manualOverride ? "Resume auto" : "Manual override"}
+                    </button>
+                    <button className="secondary" onClick={() => startEdit(d)}>
+                      Edit
+                    </button>
+                    <button className="secondary" onClick={() => remove(d)}>
+                      Remove
+                    </button>
                  </div>
                </div>
-                <div style={{ display: "flex", gap: 8, alignItems: "center" }}>
-                  {d.manualOverride && (
-                    <span className="badge override">Manual</span>
-                  )}
-                  <button
-                    className="secondary"
-                    onClick={() => toggleOverride(d)}
-                  >
-                    {d.manualOverride ? "Resume auto" : "Manual override"}
-                  </button>
-                  <button className="secondary" onClick={() => remove(d)}>
-                    Remove
-                  </button>
-                </div>
-              </div>
-            ))
+              ),
+            )
        )}
      </div>
    </>
--- a/energy-management/frontend/src/api.ts
+++ b/energy-management/frontend/src/api.ts
@@ -34,6 +34,11 @@ export interface QuarterHourStatus {
  overTarget: boolean;
 }

+export interface CurrentReadings {
+  powerW: number | null;
+  solarW: number | null;
+}
+
 export interface ControlAction {
  timestampMs: number;
  entityId: string;
@@ -56,7 +61,10 @@ async function request<T>(path: string, init?: RequestInit): Promise<T> {
 }

 export const api = {
-  getStatus: () => request<{ quarterHour: QuarterHourStatus; devices: DeviceStatus[] }>("/api/status"),
+  getStatus: () =>
+    request<{ quarterHour: QuarterHourStatus; devices: DeviceStatus[]; current: CurrentReadings }>(
+      "/api/status",
+    ),
  getHistory: (sinceMs: number) => request<BlockHistoryPoint[]>(`/api/history?sinceMs=${sinceMs}`),
  getActions: (limit = 50) => request<ControlAction[]>(`/api/actions?limit=${limit}`),
  getDevices: () => request<DeviceConfig[]>("/api/devices"),
--- a/energy-management/frontend/src/theme.css
+++ b/energy-management/frontend/src/theme.css
@@ -124,6 +124,31 @@ nav.tabs button.active {
  margin-top: 4px;
 }

+.stat-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
+  gap: 16px;
+}
+
+.stat-tile {
+  background: var(--surface-2, transparent);
+  border: 1px solid var(--border);
+  border-radius: 10px;
+  padding: 14px 16px;
+}
+
+.stat-label {
+  font-size: 12px;
+  color: var(--text-muted);
+  margin-bottom: 4px;
+}
+
+.stat-value {
+  font-size: 28px;
+  font-weight: 600;
+  line-height: 1.1;
+}
+
 .status-pill {
  display: inline-flex;
  align-items: center;
@@ -162,6 +187,11 @@ nav.tabs button.active {
  font-size: 14px;
 }

+.device-row-editing {
+  display: block;
+  padding: 16px 0;
+}
+
 .device-meta {
  font-size: 12px;
  color: var(--text-muted);