My 4 bay HDD NAS uses around 45W, 50W with some light load, 70W spinning up. That’s about 1kWh per day, or 150 EUR per year.
I use it in my room, so I very much care about noise.
More durability = less redundancy (less cost) + less frequent swaps (less cost). My anecdotal evidence is 1 failed SSD in 15 years (160GB Intel, basically first Gen). Every other SSD is still working. I have a drawer full of failed HDDs.
Plus more performance.
I have my own nas in my living room too and it’s super rare that I hear the disks over the fans.
My HDDs run 24/7 without spin up btw. I’m just talking about the costs. My drives don’t fail that much as yours. The recent drives that failed were WD Blue that were very old and only used for backups. And yes, all backups were still readable, even the drive was reported as failed. Compare it to SSDs that often fail “spectacularly”.
Geez power is expensive for you folks.
In Vancouver we pay 0.14 CAD per kWh (.096 EUR) for usage beyond 675kWh in a month. (0.0975CAD, 0.068 EUR, before the threshold)
