diff --git a/lib/db/schema/entryScreenshots.ts b/lib/db/schema/entryScreenshots.ts
new file mode 100644
index 0000000..68541b0
--- /dev/null
+++ b/lib/db/schema/entryScreenshots.ts
@@ -0,0 +1,30 @@
+import {
+  integer,
+  pgTable,
+  text,
+  timestamp,
+  index,
+} from "drizzle-orm/pg-core"
+import { performanceEntries } from "./performanceEntries"
+
+export const entryScreenshots = pgTable(
+  "entry_screenshots",
+  {
+    id: text("id")
+      .primaryKey()
+      .$defaultFn(() => crypto.randomUUID()),
+    entryId: text("entry_id")
+      .notNull()
+      .references(() => performanceEntries.id, { onDelete: "cascade" }),
+    storageKey: text("storage_key").notNull(),
+    orderIndex: integer("order_index").notNull().default(0),
+    mimeType: text("mime_type").notNull(),
+    width: integer("width").notNull(),
+    height: integer("height").notNull(),
+    originalName: text("original_name"),
+    createdAt: timestamp("created_at").defaultNow().notNull(),
+  },
+  (table) => [
+    index("entry_screenshots_entry_idx").on(table.entryId),
+  ],
+)
\ No newline at end of file
diff --git a/lib/db/schema/hardware.ts b/lib/db/schema/hardware.ts
index f6794f8..0f8939b 100644
--- a/lib/db/schema/hardware.ts
+++ b/lib/db/schema/hardware.ts
@@ -1,4 +1,4 @@
-import { integer, pgEnum, pgTable, text, timestamp } from "drizzle-orm/pg-core"
+import { integer, pgEnum, pgTable, real, text, timestamp } from "drizzle-orm/pg-core"
 
 export const deviceTypeEnum = pgEnum("device_type", ["handheld", "console"])
 
@@ -7,6 +7,8 @@ export const hardware = pgTable("hardware", {
   name: text("name").notNull(),
   deviceType: deviceTypeEnum("device_type").notNull(),
   image: text("image"),
+  wattHours: real("watt_hours"),
+  tdpMax: real("tdp_max"),
   sortOrder: integer("sort_order").default(0).notNull(),
   createdAt: timestamp("created_at").defaultNow().notNull(),
 })
diff --git a/lib/db/schema/index.ts b/lib/db/schema/index.ts
index ce6b802..aa0953c 100644
--- a/lib/db/schema/index.ts
+++ b/lib/db/schema/index.ts
@@ -11,3 +11,4 @@ export * from "./reports"
 export * from "./community-suggestions"
 export * from "./saved-filters"
 export * from "./storage"
+export * from "./entryScreenshots"
diff --git a/lib/db/schema/performanceEntries.ts b/lib/db/schema/performanceEntries.ts
index 4078268..c2fe62f 100644
--- a/lib/db/schema/performanceEntries.ts
+++ b/lib/db/schema/performanceEntries.ts
@@ -79,9 +79,15 @@ export const performanceEntries = pgTable(
     settingsJson: jsonb("settings_json").$type<GameSettingCategory[]>(),
     userNotes: text("user_notes"),
 
-    // Battery estimate (minutes)
+    // Battery estimate (minutes) — @deprecated: auto-computed from tdpWatts + hardware.wattHours
     estimatedBatteryMin: integer("estimated_battery_min"),
 
+    // TDP tracking (watts) — user-set TDP cap during benchmark
+    tdpWatts: real("tdp_watts"),
+
+    // YouTube video linking
+    youtubeVideoId: text("youtube_video_id"),
+
     // Custom system flag
     customSystem: boolean("custom_system").default(false).notNull(),