There's a lot of thought that goes into owning a NAS. Which NAS do you choose? How much storage do you buy? But, there are also quite a few hidden costs to owning a NAS that you might never have considered. NAS systems can draw a lot of power Those drives don't spin themselves! Something that I didn't originally think of when I started to deploy more powerful servers and NAS systems in my homelab was the power draw. Combined, my Lenovo RD440, Dell R720, and Dell R720xd draw around 650 to 750W of electricity. That's about .75kWh of power, meaning combined, it's around $0.075/hr to run the servers with my current power rates. In total, that adds up to my three servers using about $40 worth of electricity per month. I would never have thought, initially, that these servers would use that type of power. Well, they do.…