diff --git a/src/components/chart/sankey-chart.ts b/src/components/chart/ha-sankey-chart.ts
similarity index 99%
rename from src/components/chart/sankey-chart.ts
rename to src/components/chart/ha-sankey-chart.ts
index f9315b73ef78..7dcff4fbc9a3 100644
--- a/src/components/chart/sankey-chart.ts
+++ b/src/components/chart/ha-sankey-chart.ts
@@ -49,8 +49,8 @@ const NODE_WIDTH = 15;
 const FONT_SIZE = 12;
 const MIN_DISTANCE = FONT_SIZE / 2;
 
-@customElement("sankey-chart")
-export class SankeyChart extends LitElement {
+@customElement("ha-sankey-chart")
+export class HaSankeyChart extends LitElement {
   @property({ attribute: false }) public hass!: HomeAssistant;
 
   @property({ attribute: false }) public data: SankeyChartData = {
@@ -539,6 +539,6 @@ export class SankeyChart extends LitElement {
 
 declare global {
   interface HTMLElementTagNameMap {
-    "sankey-chart": SankeyChart;
+    "ha-sankey-chart": HaSankeyChart;
   }
 }
diff --git a/src/panels/lovelace/cards/energy/hui-energy-sankey-card.ts b/src/panels/lovelace/cards/energy/hui-energy-sankey-card.ts
index a80f4b480d35..d5630916ef53 100644
--- a/src/panels/lovelace/cards/energy/hui-energy-sankey-card.ts
+++ b/src/panels/lovelace/cards/energy/hui-energy-sankey-card.ts
@@ -18,8 +18,8 @@ import { SubscribeMixin } from "../../../../mixins/subscribe-mixin";
 import type { HomeAssistant } from "../../../../types";
 import type { LovelaceCard, LovelaceGridOptions } from "../../types";
 import type { EnergySankeyCardConfig } from "../types";
-import "../../../../components/chart/sankey-chart";
-import type { Link, Node } from "../../../../components/chart/sankey-chart";
+import "../../../../components/chart/ha-sankey-chart";
+import type { Link, Node } from "../../../../components/chart/ha-sankey-chart";
 import { getGraphColorByIndex } from "../../../../common/color/colors";
 import { formatNumber } from "../../../../common/number/format_number";
 
@@ -399,13 +399,13 @@ class HuiEnergySankeyCard
       <ha-card .header=${this._config.title}>
         <div class="card-content">
           ${hasData
-            ? html`<sankey-chart
+            ? html`<ha-sankey-chart
                 .data=${{ nodes, links }}
                 .vertical=${this._config.layout === "vertical"}
                 .loadingText=${this.hass.localize(
                   "ui.panel.lovelace.cards.energy.loading"
                 )}
-              ></sankey-chart>`
+              ></ha-sankey-chart>`
             : html`${this.hass.localize(
                 "ui.panel.lovelace.cards.energy.no_data_period"
               )}`}