What Is Your NAS Power Consumption (and Cost)?

Quick Answer:

A NAS device typically consumes between 20 to 60 watts of power, depending on the configuration. Daily consumption can range from 0.48 kWh to 1.44 kWh, which translates to a monthly cost of about $3.24 for a 30-watt NAS and $39.42 annually.

Whether you’re looking to manage your energy costs or reduce your environmental footprint, knowing how to balance performance and power efficiency can make a big difference. Let’s break down the key factors that determine how much electricity your NAS uses and how you can keep those costs in check.

Factors That Determine Your NAS Power Consumption

Network Attached Storage (NAS) devices are designed for continuous operation, leading to ongoing power consumption. The following factors influence how much electricity your NAS uses:

• Processor Efficiency: Low-power processors, such as ARM-based CPUs, consume less energy compared to traditional x86-64 processors. Choosing energy-efficient CPUs can significantly reduce overall power usage. UGREEN DXP4800 Plus NAS storage, featuring advanced 12th generation 5-core Intel® processors, delivers a fast and seamless performance.
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• Storage Drives: Hard Disk Drives (HDDs) typically consume more power than Solid State Drives (SSDs). For instance:
  • A 3.5-inch HDD may draw between 4 to 6 watts during idle.
  • An SSD’s idle power draw ranges from 0.1 to 0.6 watts.
• Number of Drives: Each additional drive increases power consumption. For example:
  • Each HDD can add approximately 5 watts.
  • Each SSD adds about 2.5 watts.
• Active vs. Idle States: NAS devices consume significantly more power during active data access (e.g., file transfers or streaming) than during idle periods. Optimizing these periods with hibernation or scheduled power-downs can save energy.
• Cooling Systems: Fans and other cooling mechanisms contribute to overall power usage. Efficient cooling solutions can help minimize this impact.

How Much Electricity Does Your NAS Consume?

To estimate NAS electricity consumption, power draw typically ranges between 20 watts and 60 watts, depending on the device and its configuration. Below are examples:

• Low Power NAS (20 watts):
  • Daily: 20 W × 24 hours = 480 Wh = 0.48 kWh
  • Monthly: 0.48 kWh/day × 30 days = 14.4 kWh
• Average NAS (30 watts):
  • Daily: 30 W × 24 hours = 720 Wh = 0.72 kWh
  • Monthly: 0.72 kWh/day × 30 days = 21.6 kWh
• High Power NAS (60 watts):
  • Daily: 60 W × 24 hours = 1440 Wh = 1.44 kWh
  • Monthly: 1.44 kWh/day × 30 days = 43.2 kWh

How Much Does It Cost to Run a NAS?

Operating a NAS continuously incurs electricity costs, which vary based on the device’s power consumption and local electricity rates. Using an electricity rate of $0.15 per kWh, here’s the breakdown for a NAS consuming 30 watts:

• Energy Usage:
  • Daily: 30 W × 24 hours = 720 Wh = 0.72 kWh
  • Monthly: 0.72 kWh/day × 30 days = 21.6 kWh
  • Yearly: 0.72 kWh/day × 365 days = 262.8 kWh
• Costs:
  • Monthly: 21.6 kWh × $0.15/kWh = $3.24
  • Yearly: 262.8 kWh × $0.15/kWh = $39.42

How to Reduce the Power Consumption of NAS

To maximize power efficiency and minimize costs, consider the following strategies:

• Use Energy-Efficient Drives: SSDs consume less power than traditional HDDs. For example:
  • SSD idle power: 0.1 to 0.6 watts
  • 3.5-inch HDD idle power: 4 to 6 watts
• Consolidate Storage: Opt for higher-capacity drives to reduce the total number of drives needed.
• Drive Hibernation: Configure drives to enter hibernation during inactivity to save energy.
• Scheduled Power Cycles: Set your NAS to power down or enter low-power states when not in use.
• Clean Components: Regularly clean fans and vents to prevent dust buildup, which can lead to overheating and increased power usage.
  
  
• Update Firmware: Firmware updates not only improve system performance and security but may also include power-saving features or better drive management protocols. Regular updates ensure your NAS runs as efficiently as possible.
• Efficient Cooling: Place the NAS in a cool, well-ventilated environment to reduce active cooling needs.

Final Words

Reducing your NAS power consumption doesn’t have to be complicated. By using energy-efficient drives, enabling power-saving modes, and ensuring proper cooling, you can significantly lower electricity costs. With a little planning, you’ll enjoy all the benefits of your NAS without breaking the bank on energy bills.

FAQs

Does a NAS use more power with more drives installed?
Yes. Each additional drive increases power consumption. A typical HDD adds 4–6 watts during active use, while an SSD adds 0.5–2.5 watts. Using higher-capacity drives can reduce the number of drives required, minimizing power usage. Click to read more: What Drives Should I Use for a NAS?

How does RAID configuration affect power consumption?
RAID setups with redundancy (e.g., RAID 1 or RAID 5) require multiple drives running simultaneously, increasing power consumption. However, these configurations provide enhanced data protection, which may justify the additional power usage for critical applications.

Is it better to leave the NAS on 24/7 or turn it off when not in use?
Leaving the NAS on 24/7 is common for accessibility and automated tasks, but it consumes more power. To save energy, use features like scheduled power cycles or hibernation during inactivity.

Do external peripherals connected to a NAS increase power consumption?
Yes. Peripherals like USB drives, external monitors, or network printers connected to a NAS can draw additional power. Disconnect unused devices to reduce consumption.

How can I monitor the energy consumption of my NAS?
You can use a power meter plugged into the NAS’s power outlet to measure real-time and cumulative energy usage. Some NAS devices also include built-in tools or software for power monitoring.

Does upgrading to SSDs significantly reduce power consumption?
Yes, SSDs use less power than HDDs, especially during idle states. However, SSDs are more expensive. Use them selectively for frequently accessed data to balance efficiency and cost.

Does network activity affect NAS power usage?
Increased network activity (e.g., data transfers or streaming) leads to higher CPU and drive usage, increasing power consumption. Optimizing network configurations can help save energy.

What role does the NAS enclosure play in power efficiency?
Efficient enclosures with optimized airflow or silent low-power fans reduce energy requirements for cooling. Compact designs minimize wasted power.

Does the NAS’s location impact its power consumption?
Yes. Operating a NAS in a cooler, well-ventilated space reduces the need for active cooling, improving power efficiency. Avoid placing it in hot, enclosed areas.

Are there certifications for energy-efficient NAS devices?
Yes. Some NAS models are certified with energy efficiency standards, like Energy Star or similar certifications, ensuring reduced power consumption while maintaining performance.