diff --git a/app/src/app/api/v0/inventory/[inventory]/results/route.ts b/app/src/app/api/v0/inventory/[inventory]/results/route.ts
index 1df379eaa..5fa159526 100644
--- a/app/src/app/api/v0/inventory/[inventory]/results/route.ts
+++ b/app/src/app/api/v0/inventory/[inventory]/results/route.ts
@@ -14,10 +14,10 @@ export const GET = apiHandler(
     return NextResponse.json({
       data: {
         totalEmissions: {
-          bySector: totalEmissionsBySector,
-          total: totalEmissions,
+          bySector: totalEmissionsBySector || [],
+          total: totalEmissions || 0,
         },
-        topEmissions: { bySubSector: topEmissionsBySubSector },
+        topEmissions: { bySubSector: topEmissionsBySubSector || [] },
       },
     });
   },
diff --git a/app/src/backend/ResultsService.ts b/app/src/backend/ResultsService.ts
index 46d0bb65e..952fd6812 100644
--- a/app/src/backend/ResultsService.ts
+++ b/app/src/backend/ResultsService.ts
@@ -770,10 +770,10 @@ export async function getEmissionResults(inventory: string): Promise<{
   const EmissionResults = await getEmissionResultsBatch([inventory]);
   const inventoryEmissionResults = EmissionResults[inventory];
   return {
-    totalEmissions: inventoryEmissionResults.totalEmissions.sumOfEmissions,
+    totalEmissions: inventoryEmissionResults?.totalEmissions?.sumOfEmissions,
     totalEmissionsBySector:
-      inventoryEmissionResults.totalEmissions.totalEmissionsBySector,
-    topEmissionsBySubSector: inventoryEmissionResults.topEmissionsBySubSector,
+      inventoryEmissionResults?.totalEmissions?.totalEmissionsBySector,
+    topEmissionsBySubSector: inventoryEmissionResults?.topEmissionsBySubSector,
   };
 }
 
diff --git a/app/tests/api/results.jest.ts b/app/tests/api/results.jest.ts
index 44dcabd59..10d2cba9e 100644
--- a/app/tests/api/results.jest.ts
+++ b/app/tests/api/results.jest.ts
@@ -137,4 +137,34 @@ describe("Results API", () => {
       },
     });
   });
+
+  it("should return empty arrays when Inventory has no data", async () => {
+    const emptyInventoryId = randomUUID();
+    const emptyInventory = await db.models.Inventory.create({
+      inventoryId: emptyInventoryId,
+      ...baseInventory,
+      inventoryName: "ReportResultEmptyInventory",
+      cityId: city.cityId,
+      inventoryType: InventoryTypeEnum.GPC_BASIC,
+      globalWarmingPotentialType: GlobalWarmingPotentialTypeEnum.ar6,
+      year: 2022,
+    });
+    const req = mockRequest();
+    const res = await getResults(req, {
+      params: { inventory: emptyInventory.inventoryId },
+    });
+
+    await expectStatusCode(res, 200);
+    expect(await res.json()).toEqual({
+      data: {
+        topEmissions: {
+          bySubSector: [],
+        },
+        totalEmissions: {
+          bySector: [],
+          total: 0,
+        },
+      },
+    });
+  });
 });