diff --git a/packages/grafana-data/src/valueFormats/categories.ts b/packages/grafana-data/src/valueFormats/categories.ts
index 82c8538be88..8122e713de2 100644
--- a/packages/grafana-data/src/valueFormats/categories.ts
+++ b/packages/grafana-data/src/valueFormats/categories.ts
@@ -227,6 +227,7 @@ export const getCategories = (): ValueFormatCategory[] => [
       { name: 'Watt-hour per Kilogram (Wh/kg)', id: 'watthperkg', fn: SIPrefix('Wh/kg') },
       { name: 'Kilowatt-hour (kWh)', id: 'kwatth', fn: SIPrefix('Wh', 1) },
       { name: 'Kilowatt-min (kWm)', id: 'kwattm', fn: SIPrefix('W-Min', 1) },
+      { name: 'Megawatt-hour (MWh)', id: 'mwatth', fn: SIPrefix('Wh', 2) },
       { name: 'Ampere-hour (Ah)', id: 'amph', fn: SIPrefix('Ah') },
       { name: 'Kiloampere-hour (kAh)', id: 'kamph', fn: SIPrefix('Ah', 1) },
       { name: 'Milliampere-hour (mAh)', id: 'mamph', fn: SIPrefix('Ah', -1) },