diff --git a/assets/js/components/Config/StatusIndicator.vue b/assets/js/components/Config/StatusIndicator.vue
index 17c92d037..d27f33fb2 100644
--- a/assets/js/components/Config/StatusIndicator.vue
+++ b/assets/js/components/Config/StatusIndicator.vue
@@ -16,7 +16,7 @@
 import { defineComponent, type PropType } from "vue";
 import Tooltip from "bootstrap/js/dist/tooltip";
 
-type Variant = "success" | "warning" | "muted";
+type Variant = "success" | "warning" | "danger" | "muted";
 
 export default defineComponent({
 	name: "StatusIndicator",
@@ -34,6 +34,8 @@ export default defineComponent({
 					return "bg-success";
 				case "warning":
 					return "bg-warning";
+				case "danger":
+					return "bg-danger";
 				default:
 					return "border border-secondary";
 			}
diff --git a/assets/js/components/Optimize/OptimizeHeader.stories.ts b/assets/js/components/Optimize/OptimizeHeader.stories.ts
index f443ac6a5..601eb24a2 100644
--- a/assets/js/components/Optimize/OptimizeHeader.stories.ts
+++ b/assets/js/components/Optimize/OptimizeHeader.stories.ts
@@ -41,6 +41,10 @@ Payment.args = { ...base, status: OptimizationStatus.OPTIMAL, netCost: 12.4 };
 export const Credit = Template.bind({});
 Credit.args = { ...base, status: OptimizationStatus.OPTIMAL, netCost: -3.8 };
 
+// usable but not proven optimal plan
+export const Feasible = Template.bind({});
+Feasible.args = { ...base, status: OptimizationStatus.FEASIBLE, netCost: 12.4 };
+
 // solver could not produce a plan
 export const Infeasible = Template.bind({});
 Infeasible.args = { ...base, status: OptimizationStatus.INFEASIBLE, netCost: 0 };
diff --git a/assets/js/components/Optimize/OptimizeHeader.vue b/assets/js/components/Optimize/OptimizeHeader.vue
index a7cd81b65..5736ecd75 100644
--- a/assets/js/components/Optimize/OptimizeHeader.vue
+++ b/assets/js/components/Optimize/OptimizeHeader.vue
@@ -11,7 +11,9 @@
 					<div class="field-caption small evcc-gray mt-1">always, fixed</div>
 				</div>
 				<div class="field-value gap-2">
-					<span class="large fw-bold text-lowercase evcc-default-text">Lowest cost</span>
+					<span class="value-text fw-bold text-lowercase evcc-default-text"
+						>Lowest cost</span
+					>
 					<LockIcon class="value-icon" />
 				</div>
 			</div>
@@ -32,7 +34,7 @@
 						@change="onStrategyChange"
 					>
 						<span
-							class="large fw-bold text-lowercase evcc-default-text secondary-goal"
+							class="value-text fw-bold text-lowercase evcc-default-text secondary-goal"
 							>{{ secondaryGoalLabel }}</span
 						>
 					</CustomSelect>
@@ -60,7 +62,7 @@
 				</div>
 				<div class="field-value gap-2">
 					<StatusIndicator :variant="statusVariant">
-						<span class="large fw-bold text-lowercase evcc-default-text">{{
+						<span class="value-text fw-bold text-lowercase evcc-default-text">{{
 							status
 						}}</span>
 					</StatusIndicator>
@@ -88,7 +90,7 @@
 				</div>
 				<div class="field-value gap-2">
 					<span
-						class="fs-4 fw-bold tabular"
+						class="value-text fw-bold tabular"
 						:class="isCredit ? 'text-primary' : 'evcc-default-text'"
 					>
 						{{ netCostDisplay }}
@@ -132,6 +134,7 @@ const STRATEGY_LABELS: Record<string, string> = {
 const STATUS_TOOLTIP =
 	"The optimizer result:<br><br>" +
 	"<strong>Optimal</strong>: the best plan was found.<br>" +
+	"<strong>Feasible</strong>: a usable plan was found, but not proven optimal.<br>" +
 	"<strong>Infeasible</strong>: the constraints cannot all be met.<br>" +
 	"<strong>Not solved</strong>: optimization hasn't finished yet.";
 
@@ -180,13 +183,15 @@ export default defineComponent({
 			if (Math.abs(elapsed) < 60 * 1000) return "just now";
 			return this.fmtTimeAgo(elapsed);
 		},
-		statusVariant(): "success" | "warning" | "muted" {
+		statusVariant(): "success" | "warning" | "danger" | "muted" {
 			switch (this.status) {
 				case OptimizationStatus.OPTIMAL:
 					return "success";
+				case OptimizationStatus.FEASIBLE:
+					return "warning";
 				case OptimizationStatus.INFEASIBLE:
 				case OptimizationStatus.UNBOUNDED:
-					return "warning";
+					return "danger";
 				default:
 					return "muted";
 			}
@@ -276,20 +281,22 @@ export default defineComponent({
 .info-icon {
 	cursor: help;
 }
+/* body size on small screens, larger from md up; bold carries the emphasis */
+.value-text {
+	font-size: 1rem;
+	line-height: 1.2;
+}
+@media (min-width: 768px) {
+	.value-text {
+		font-size: 1.25rem;
+	}
+}
 .secondary-goal {
 	text-decoration: underline;
 	text-decoration-color: var(--evcc-gray);
 	text-underline-offset: 3px;
 }
 
-/* small: slightly reduced value size, rows are tighter */
-@media (max-width: 767.98px) {
-	.field-value .large,
-	.field-value .fs-4 {
-		font-size: 1.125rem !important;
-	}
-}
-
 /* md and up: each field a vertical stack (label, value, caption); columns via Bootstrap grid */
 @media (min-width: 768px) {
 	.field {
diff --git a/assets/js/types/evcc.ts b/assets/js/types/evcc.ts
index 30a2bb32a..97cd268e5 100644
--- a/assets/js/types/evcc.ts
+++ b/assets/js/types/evcc.ts
@@ -1429,6 +1429,7 @@ export interface TimeSeries {
 // Solver status enum
 export enum OptimizationStatus {
   OPTIMAL = "Optimal",
+  FEASIBLE = "Feasible",
   INFEASIBLE = "Infeasible",
   UNBOUNDED = "Unbounded",
   UNDEFINED = "Undefined",
diff --git a/core/site_optimizer.go b/core/site_optimizer.go
index bdd34a44b..ef1a7b983 100644
--- a/core/site_optimizer.go
+++ b/core/site_optimizer.go
@@ -599,8 +599,9 @@ func (site *Site) optimizerUpdate(battery []types.Measurement) error {
 		Details: details,
 	})
 
-	if resp.JSON200.Status != optimizer.Optimal {
-		return errors.New(string(resp.JSON200.Status))
+	// feasible results are usable, they are just not proven optimal
+	if status := resp.JSON200.Status; status != optimizer.Optimal && status != optimizer.Feasible {
+		return errors.New(string(status))
 	}
 
 	site.applyOptimizerResult(req, details.BatteryDetails, *resp.JSON200)