The Information Agein Numbers
Global Data Generation in 2025
Digital technologies have elevated the generation, storage, and availability of information to an entirely new scale.
1 Zettabyte (ZB) = 1,000,000,000,000 Gigabytes (GB) 1 ZB = 1012 GB
Data Volume (illustrated physically)
4 TB hard disk drive (HDD)
1,000,000,000,000 GB ÷ 4,000 GB
= 250,000,000 hard drives
Space Requirements (illustrated physically)
Height: 2.50 cm × 250 million = 6,250 km
Length: 10.00 cm × 250 million = 25,000 km
If the hard drives were stacked or placed end to end.
Power Consumption of the Storage Media
250 million × 5 watts = 1.25 gigawatts In one hour, 120 million hard drives consume 1.25 gigawatt-hours (GWh) of electricity. This is roughly equivalent to the output of around one nuclear power station, simply to operate the hard drives.
Cost of the Storage Media (hard drives)
A 4-TB hard drive costs approx. € 80.00 (2026)
250 million × € 80.00 = € 20,000,000,000
Total cost: € 20 billion
How many years would be required to upload 1 ZB over a standard internet connection?
At an upload speed of 100 Mbps
1 ZB ≈ 2.5 million years
181 ZB × 2.5 million years ≈
452.5 million years
Estimated global data volume in 2025