No it doesn’t, people don’t leave their devices refreshing reddit 24/7. Also, watts aren’t joules.
But if the new website takes more power, and we know that there are roughly X million pageloads a month, then we know it will use a lot more, right?
> watts aren’t joules
The very definition of a Watt is one joule per second. Not the same, definitely, but it's close and in specific cases 1:1 convertible.