This following table provides you with a first indication of the price for archiving 1 TB in a sustainable way based on 3 geographically distant copies. Prices for other amount of data could be obtained on this basis, see example for 10 GB.

Number of years Cost per TB (CHF) for 3 copies Cost for 10 GB (CHF) for 3 copies
1 900 9
5 3201 (or 640 per year) 32
10 4612 (or 461 per year) 46

The service is currently being developed and should become available in a beta version in the first 2018 semester.