Sustainable IT: Practical Ways to Reduce Your Technology Environmental Impact

# Sustainable IT: Practical Ways to Reduce Your Technology Environmental Impact

IT infrastructure accounts for 2-4% of global carbon emissions — comparable to the airline industry. For individual businesses, IT is often 5-15% of total energy consumption. Sustainable IT practices reduce both environmental impact and operating costs — a genuine win-win.

## Server and Data Center Efficiency

### Power Management

Most servers run at 10-30% average utilization but consume 60-80% of their maximum power even when idle:

• **Virtualization** — Consolidate 5-10 physical servers onto one host. Fewer servers = less power, less cooling
• **Right-sizing** — Replace oversized legacy servers with properly sized modern hardware
• **Power management features** — Enable C-states and P-states for dynamic frequency scaling
• **Efficient power supplies** — Use 80 PLUS Titanium or Platinum rated PSUs (94-96% efficiency vs 80% for basic units)
• **Measure PUE** — Power Usage Effectiveness ratio shows how efficiently your cooling works. Target PUE below 1.5

### Cooling Optimization

Cooling is typically 30-40% of server room energy consumption:

• **Hot/cold aisle containment** — Prevents hot exhaust from mixing with cold intake air
• **Raise thermostat setpoints** — ASHRAE recommends up to 80.6°F (27°C) for server inlet temperatures. Most rooms run unnecessarily cold
• **Variable speed fans** — Replace constant-speed cooling with variable speed that adjusts to heat load
• **Free cooling** — In cooler climates, use outside air when ambient temperature permits

## Endpoint Sustainability

### Hardware Lifecycle Management

• **Extend useful life** — Modern business PCs can last 5-7 years with SSD upgrades and memory additions
• **Standardize configurations** — Reduces procurement complexity and enables bulk recycling
• **Memory and SSD upgrades** — Cheaper and greener than full replacement for machines that are still structurally sound
• **Lease vs buy** — Leasing programs often include certified refurbishment and recycling

### Power Settings

Workstations consume 50-300W when active. Proper power management can cut this significantly:

• **Sleep mode** — Configure after 10-15 minutes of inactivity (saves 60-80% of idle power)
• **Display timeout** — Monitors off after 5 minutes
• **Power plans via Group Policy** — Enforce sleep and display settings centrally. Users cannot override
• **Smart power strips** — Cut phantom power to peripherals when the PC sleeps

### E-Waste Responsibility

• **Certified recycling** — Use R2 or e-Stewards certified recyclers for end-of-life equipment
• **Data destruction** — Certified data wiping or physical destruction before recycling (NIST 800-88)
• **Manufacturer take-back** — Dell, HP, and Lenovo all offer take-back and recycling programs
• **Donate viable equipment** — Functional equipment can go to schools, nonprofits, or refurbishment programs

## Cloud and Software Efficiency

### Cloud Sustainability Benefits

Cloud providers operate at much higher efficiency than on-premises data centers:

• **Higher utilization** — Cloud providers run at 50-65% utilization vs 10-30% for typical on-prem servers
• **Renewable energy** — Major cloud providers (AWS, Azure, GCP) are committed to 100% renewable energy
• **Efficient cooling** — Hyperscale data centers achieve PUE of 1.1-1.2 vs 1.5-2.5 for typical on-prem
• **Hardware refresh** — Cloud providers upgrade to more efficient hardware on faster cycles

### Software Optimization

• **Eliminate zombie resources** — shut down VMs, storage, and applications that are no longer used
• **Auto-scaling** — Only run the capacity you need. Scale down nights, weekends, and holidays
• **Efficient code** — Well-optimized applications consume less compute, less energy, and cost less to run
• **Dark mode** — On OLED displays, dark mode reduces display power consumption by 30-60%

## Printing and Paper Reduction

Printing is a hidden sustainability cost:

• **Default to digital** — Electronic signatures, digital forms, cloud document sharing
• **Double-sided default** — Set duplex printing as the default on all printers
• **Print accounting** — Track printing by department. Awareness reduces consumption
• **Managed print services** — Right-size your printer fleet, consolidate personal printers to shared devices
• **Recycled paper** — When printing is necessary, use recycled or sustainably sourced paper

## Measuring Your IT Sustainability

Track these metrics quarterly:

| Metric | How to Measure | |--------|---------------| | Energy consumption (kWh) | Utility bills for server room / IT areas | | PUE (data center efficiency) | Total facility power / IT equipment power | | Devices per employee | Total IT devices / headcount | | E-waste diverted from landfill | Weight recycled vs disposed | | Cloud utilization | Average VM/instance utilization | | Print volume | Pages per employee per month |

## Quick Wins

Summit DNC helps businesses design energy-efficient IT infrastructure, implement proper hardware lifecycle management, and transition to sustainable technology practices that reduce both environmental impact and operating costs.