When it comes to energy consumption from hard disks, there are major variations among makes and models, with a range of 3 to 10 watts.
Hard disk energy consumption at idle, and when copying files" /> As you'd expect, the hard disks with the lowest energy consumption are 2.5" notebook drives. We skipped those for our solar-powered PC, however, because we wanted to use standard desktop components throughout.
Among the 3.5" hard disks, the WD1600AAJS - built around a single disk platter - fares particularly well when the system is idle. Because most hard disks are idle most of the time, we chose this drive for that very reason. Its 160 GB capacity is fine for our solar-powered PC, but the 320 GB WD3200AAJS consumes the same amount of power when idle, so it could have just as easily been used instead.
We chose the WD1600AAJS
|12 Volt Solar-PC-System|
|PSU||5.00 W||14.20 W|
|CPU||8.49 W||38.66 W|
|Motherboard||7.78 W||19.71 W|
|RAM||6.06 W||6.23 W|
|HD||5.93 W||7.59 W|
|Total:||61.23 W||115.60 W|
|max. 160 Watt Custom PSU|
- A New Desktop PC Power Consumption World Record: 61 Watts
- Power Delivery: Conventional A/C (120/230V) Or 16 Volts DC?
- Delivering 16 V DC From A Solar Panel
- Delivering 16 V DC From A Solar Panel, Continued
- Efficiency Is Where It's At
- Efficiency Is Where It's At, Continued
- Best Choice: AMD Athlon 64 X2 BE-2350
- 1 Watt Active Cooling Takes Very Little Power
- Energy-saving Motherboard: Gigabyte With HDMI And DVI
- Energy-saving Motherboard: Gigabyte With HDMI And DVI, Continued
- Comparing Energy Draw: MSI Vs. Gigabyte
- Motherboard Comparison
- Measurements: Energy Consumption For Onboard Components
- Major Differences Among Hard Disks: WD Comes Out Best
- Comparing DVD Drives: Samsung Wins With 3.5 Watts Consumed
- The Monitor Is A Real Energy Hog: 23 Watts When In Use
- The Monitor Is A Real Energy Hog: 23 Watts When In Use, Continued
- 61-Watt Solar-Powered PC: Storage Batteries Allow Operation In The Dark
- 61-Watt Solar-Powered PC: Storage Batteries Allow Operation In The Dark, Continued