With absolutely nothing to explain the cost estimate, so you can put away "TFA" thank you.
A system like this with only a single weight is going to be a huge amount of work to set up each unit of capacity.
Also looking up the info I can find, I think they're calculating that rate over a 60 year lifetime.
Edit: Uh, did I say something offensive?
No that I see. It's just really easy to read your comments in a haughty tone, which naturally selects for downvotes. The content of your posts, on the other hand, seems to encourage deeper investigation, so that's probably on point.
Communication is hard.
With absolutely nothing to explain the cost estimate, so you can put away "TFA" thank you.
A system like this with only a single weight is going to be a huge amount of work to set up each unit of capacity.
Also looking up the info I can find, I think they're calculating that rate over a 60 year lifetime.
Edit: Uh, did I say something offensive?