diff --git a/apps/nowcasting-app/components/map/deltaMap.tsx b/apps/nowcasting-app/components/map/deltaMap.tsx
index ab03f558..a8e5a49c 100644
--- a/apps/nowcasting-app/components/map/deltaMap.tsx
+++ b/apps/nowcasting-app/components/map/deltaMap.tsx
@@ -152,7 +152,8 @@ const DeltaMap: React.FC<DeltaMapProps> = ({
       );
       map.addSource("latestPV", {
         type: "geojson",
-        data: forecastGeoJson
+        data: forecastGeoJson,
+        promoteId: "id"
       });
     } else {
       if (generatedGeoJsonForecastData && source) {
diff --git a/apps/nowcasting-app/pages/index.tsx b/apps/nowcasting-app/pages/index.tsx
index fd0fd784..82d52786 100644
--- a/apps/nowcasting-app/pages/index.tsx
+++ b/apps/nowcasting-app/pages/index.tsx
@@ -35,7 +35,7 @@ import {
   getSitesLoadingState,
   isProduction
 } from "../components/helpers/utils";
-import { ActiveUnit } from "../components/map/types";
+import { ActiveUnit, NationalAggregation } from "../components/map/types";
 import DeltaMap from "../components/map/deltaMap";
 import * as Sentry from "@sentry/nextjs";
 import SolarSiteChart from "../components/charts/solar-site-view/solar-site-chart";
@@ -71,6 +71,8 @@ export default function Home({ dashboardModeServer }: { dashboardModeServer: str
   const [, setSitesLoadingState] = useGlobalState("sitesLoadingState");
   const [, setLoadingState] = useGlobalState("loadingState");
   const [nHourForecast] = useGlobalState("nHourForecast");
+  const [nationalAggregationLevel] = useGlobalState("nationalAggregationLevel");
+  const [, setClickedGspId] = useGlobalState("clickedGspId");
 
   const [forecastLastFetch30MinISO, setForecastLastFetch30MinISO] = useState(get30MinNow(-30));
   const [forecastHistoricBackwardIntervalMinutes, setForecastHistoricBackwardIntervalMinutes] =
@@ -106,6 +108,13 @@ export default function Home({ dashboardModeServer }: { dashboardModeServer: str
     setArraySettingInCookieStorage(CookieStorageKeys.VISIBLE_LINES, visibleLines);
   }, [visibleLines]);
 
+  // On view change, unset the clicked "GSP" if the aggregation is not GSP
+  useEffect(() => {
+    if (nationalAggregationLevel !== NationalAggregation.GSP) {
+      setClickedGspId(undefined);
+    }
+  }, [view]);
+
   const currentView = (v: VIEWS) => v === view;
 
   useEffect(() => {