diff --git a/technic/machines/LV/hydro_generator.lua b/technic/machines/LV/hydro_generator.lua
index 43dd879a9..3ef667332 100644
--- a/technic/machines/LV/hydro_generator.lua
+++ b/technic/machines/LV/hydro_generator.lua
@@ -15,4 +15,4 @@ minetest.register_craft({
 	}
 })
 
-technic.register_hydro_generator({tier="LV", supply=35})
+technic.register_hydro_generator({tier="LV", supply=20})