diff --git a/src/data/energy.ts b/src/data/energy.ts
index 4b8536424..216bf566f 100644
--- a/src/data/energy.ts
+++ b/src/data/energy.ts
@@ -85,7 +85,6 @@ type EnergySource =
   | GridSourceTypeEnergyPreference;
 
 export interface EnergyPreferences {
-  currency: string;
   energy_sources: EnergySource[];
   device_consumption: DeviceConsumptionEnergyPreference[];
 }
diff --git a/src/panels/config/energy/components/ha-energy-grid-settings.ts b/src/panels/config/energy/components/ha-energy-grid-settings.ts
index b919a6d60..15574cb38 100644
--- a/src/panels/config/energy/components/ha-energy-grid-settings.ts
+++ b/src/panels/config/energy/components/ha-energy-grid-settings.ts
@@ -201,7 +201,6 @@ export class EnergyGridSettings extends LitElement {
 
   private _addFromSource() {
     showEnergySettingsGridFlowFromDialog(this, {
-      currency: this.preferences.currency,
       saveCallback: async (flow) => {
         let preferences: EnergyPreferences;
         const gridSource = this.preferences.energy_sources.find(
@@ -236,7 +235,6 @@ export class EnergyGridSettings extends LitElement {
 
   private _addToSource() {
     showEnergySettingsGridFlowToDialog(this, {
-      currency: this.preferences.currency,
       saveCallback: async (flow) => {
         let preferences: EnergyPreferences;
         const gridSource = this.preferences.energy_sources.find(
@@ -273,7 +271,6 @@ export class EnergyGridSettings extends LitElement {
     const origSource: FlowFromGridSourceEnergyPreference =
       ev.currentTarget.closest(".row").source;
     showEnergySettingsGridFlowFromDialog(this, {
-      currency: this.preferences.currency,
       source: { ...origSource },
       saveCallback: async (source) => {
         const flowFrom = energySourcesByType(this.preferences).grid![0]
@@ -301,7 +298,6 @@ export class EnergyGridSettings extends LitElement {
     const origSource: FlowToGridSourceEnergyPreference =
       ev.currentTarget.closest(".row").source;
     showEnergySettingsGridFlowToDialog(this, {
-      currency: this.preferences.currency,
       source: { ...origSource },
       saveCallback: async (source) => {
         const flowTo = energySourcesByType(this.preferences).grid![0].flow_to;
diff --git a/src/panels/config/energy/dialogs/dialog-energy-grid-flow-settings.ts b/src/panels/config/energy/dialogs/dialog-energy-grid-flow-settings.ts
index 607e3384f..c7fb18e36 100644
--- a/src/panels/config/energy/dialogs/dialog-energy-grid-flow-settings.ts
+++ b/src/panels/config/energy/dialogs/dialog-energy-grid-flow-settings.ts
@@ -203,7 +203,7 @@ export class DialogEnergyGridFlowSettings
               <span slot="suffix"
                 >${this.hass.localize(
                   `ui.panel.config.energy.grid.flow_dialog.${this._params.direction}.cost_number_suffix`,
-                  { currency: this._params.currency }
+                  { currency: this.hass.config.currency }
                 )}</span
               >
             </paper-input>`
diff --git a/src/panels/config/energy/dialogs/show-dialogs-energy.ts b/src/panels/config/energy/dialogs/show-dialogs-energy.ts
index 62f9d4a48..f471cce7a 100644
--- a/src/panels/config/energy/dialogs/show-dialogs-energy.ts
+++ b/src/panels/config/energy/dialogs/show-dialogs-energy.ts
@@ -10,7 +10,6 @@ export interface EnergySettingsGridFlowDialogParams {
   source?:
     | FlowFromGridSourceEnergyPreference
     | FlowToGridSourceEnergyPreference;
-  currency: string;
   direction: "from" | "to";
   saveCallback: (
     source:
@@ -21,13 +20,11 @@ export interface EnergySettingsGridFlowDialogParams {
 
 export interface EnergySettingsGridFlowFromDialogParams {
   source?: FlowFromGridSourceEnergyPreference;
-  currency: string;
   saveCallback: (source: FlowFromGridSourceEnergyPreference) => Promise<void>;
 }
 
 export interface EnergySettingsGridFlowToDialogParams {
   source?: FlowToGridSourceEnergyPreference;
-  currency: string;
   saveCallback: (source: FlowToGridSourceEnergyPreference) => Promise<void>;
 }
 
diff --git a/src/panels/config/energy/ha-config-energy.ts b/src/panels/config/energy/ha-config-energy.ts
index 3b81c275c..d55210dcd 100644
--- a/src/panels/config/energy/ha-config-energy.ts
+++ b/src/panels/config/energy/ha-config-energy.ts
@@ -1,22 +1,15 @@
 import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
 import { customElement, property, state } from "lit/decorators";
-
 import "../../../components/ha-svg-icon";
-import {
-  EnergyPreferences,
-  getEnergyPreferences,
-  saveEnergyPreferences,
-} from "../../../data/energy";
-
+import { EnergyPreferences, getEnergyPreferences } from "../../../data/energy";
 import "../../../layouts/hass-loading-screen";
 import "../../../layouts/hass-tabs-subpage";
 import { haStyle } from "../../../resources/styles";
 import type { HomeAssistant, Route } from "../../../types";
 import { configSections } from "../ha-panel-config";
+import "./components/ha-energy-device-settings";
 import "./components/ha-energy-grid-settings";
 import "./components/ha-energy-solar-settings";
-import "./components/ha-energy-device-settings";
-import { showAlertDialog } from "../../../dialogs/generic/show-dialog-box";
 
 const INITIAL_CONFIG = {
   currency: "€",
@@ -72,18 +65,6 @@ class HaConfigEnergy extends LitElement {
         .route=${this.route}
         .tabs=${configSections.experiences}
       >
-        <ha-card .header=${"General energy settings"}>
-          <div class="card-content">
-            <paper-input
-              .label=${"Currency"}
-              .value=${this._preferences!.currency}
-              @value-changed=${this._currencyChanged}
-            >
-            </paper-input>
-
-            <mwc-button @click=${this._save}>Save</mwc-button>
-          </div>
-        </ha-card>
         <div class="container">
           <ha-energy-grid-settings
             .hass=${this.hass}
@@ -105,24 +86,6 @@ class HaConfigEnergy extends LitElement {
     `;
   }
 
-  private _currencyChanged(ev: CustomEvent) {
-    this._preferences!.currency = ev.detail.value;
-  }
-
-  private async _save() {
-    if (!this._preferences) {
-      return;
-    }
-    try {
-      this._preferences = await saveEnergyPreferences(
-        this.hass,
-        this._preferences
-      );
-    } catch (err) {
-      showAlertDialog(this, { title: `Failed to save config: ${err.message}` });
-    }
-  }
-
   private async _fetchConfig() {
     try {
       this._preferences = await getEnergyPreferences(this.hass);
diff --git a/src/panels/energy/cards/energy-setup-wizard-card.ts b/src/panels/energy/cards/energy-setup-wizard-card.ts
index 65ddff4a7..b80cf99d0 100644
--- a/src/panels/energy/cards/energy-setup-wizard-card.ts
+++ b/src/panels/energy/cards/energy-setup-wizard-card.ts
@@ -21,7 +21,6 @@ export class EnergySetupWizard extends LitElement implements LovelaceCard {
   @state() private _step = 0;
 
   @state() private _preferences: EnergyPreferences = {
-    currency: "€",
     energy_sources: [],
     device_consumption: [],
   };
diff --git a/src/panels/lovelace/cards/energy/hui-energy-costs-table-card.ts b/src/panels/lovelace/cards/energy/hui-energy-costs-table-card.ts
index 1a886d620..e0ecb05ff 100644
--- a/src/panels/lovelace/cards/energy/hui-energy-costs-table-card.ts
+++ b/src/panels/lovelace/cards/energy/hui-energy-costs-table-card.ts
@@ -11,6 +11,7 @@ import {
 import { customElement, property, state } from "lit/decorators";
 import { computeStateName } from "../../../../common/entity/compute_state_name";
 import { round } from "../../../../common/number/round";
+import { formatNumber } from "../../../../common/string/format_number";
 import "../../../../components/chart/statistics-chart";
 import "../../../../components/ha-card";
 import {
@@ -131,7 +132,10 @@ export class HuiEnergyCostsTableCard
                   <td
                     class="mdc-data-table__cell mdc-data-table__cell--numeric"
                   >
-                    ${this._config!.prefs.currency} ${cost.toFixed(2)}
+                    ${formatNumber(cost, this.hass.locale, {
+                      style: "currency",
+                      currency: this.hass.config.currency!,
+                    })}
                   </td>
                 </tr>`;
               })}
@@ -162,7 +166,10 @@ export class HuiEnergyCostsTableCard
                   <td
                     class="mdc-data-table__cell mdc-data-table__cell--numeric"
                   >
-                    ${this._config!.prefs.currency} ${cost.toFixed(2)}
+                    ${formatNumber(cost, this.hass.locale, {
+                      style: "currency",
+                      currency: this.hass.config.currency!,
+                    })}
                   </td>
                 </tr>`;
               })}
@@ -172,7 +179,10 @@ export class HuiEnergyCostsTableCard
                   ${round(totalEnergy)} kWh
                 </td>
                 <td class="mdc-data-table__cell mdc-data-table__cell--numeric">
-                  ${this._config!.prefs.currency} ${totalCost.toFixed(2)}
+                  ${formatNumber(totalCost, this.hass.locale, {
+                    style: "currency",
+                    currency: this.hass.config.currency!,
+                  })}
                 </td>
               </tr>
             </tbody>
diff --git a/src/panels/lovelace/cards/energy/hui-energy-summary-card.ts b/src/panels/lovelace/cards/energy/hui-energy-summary-card.ts
index 9fd7dd20e..60179e94f 100644
--- a/src/panels/lovelace/cards/energy/hui-energy-summary-card.ts
+++ b/src/panels/lovelace/cards/energy/hui-energy-summary-card.ts
@@ -171,7 +171,7 @@ class HuiEnergySummaryCard extends LitElement implements LovelaceCard {
                           types
                             .grid![0].flow_from.map((flow) => flow.stat_cost)
                             .filter(Boolean) as string[],
-                          prefs.currency
+                          this.hass.config.currency!
                         )}
                   </div>
                 </div>