Web Content Viewer (JSR 286)

Data Centers

Three men walking through data center looking at server racks

CenturyLink Enhances Performance with Efficiency Measures

Fortune 500 company and global IT leader CenturyLink has implemented projects to enhance energy savings and Power Usage Effectiveness (PUE). This initiative includes separate “environments” (caged or fenced-off areas) for each of its more than 100 customers. CenturyLink also instituted a hot aisle/cold aisle containment system to manage airflow, specified to meet individual customer needs.


CenturyLink’s dedication to optimizing air distribution has improved efficiency and lowered energy costs for cooling. By installing airflow management controls with wireless temperature sensors at both Southern California data centers, CenturyLink will see an annual savings of more than 2.1 million kilowatt-hours (kWh).

Take a cue from CenturyLink’s energy-saving achievements. You can apply similar strategies to your business with our Time-Of-Use rates.

Finance Your Energy-Efficient Projects Learn More

White Brochure Cover with title: Essential Energy White Paper

Best Practices and Useful Links to Resources

The following best practices and links provide viable alternatives to inefficient data center design and new approaches used as a starting point by successful energy-efficient data centers.

More Less

Essential Energy Technology for Data Centers


VFDs & Airflow Optimization


Uninterruptible Power Supplies (UPS)


Close-Coupled Cooling (passive rear-door cooling or in-row cooling)

Energy-Efficient Solutions and Tips for Data Centers

Here are just a few of the energy programs and suggestions that our customers have employed to increase their cost efficiency. You’ll also find more business solutions in our Data Center Fact Sheet and a complete list of all our qualifying energy-efficiency incentives and demand response programs by requesting our Solutions Directory.

Want to explore your clean energy options with SCE? We want to help lower your energy bill and reduce your carbon footprint. Clean energy can help provide the solution.

Visit Generating Your Own Power >

Expansion and New Construction

Secure design assistance and Savings By Design incentives to offset investment costs for greater energy efficiency. Incentives are achieved by exceeding Title 24 Energy Efficiency codes.

Additionally, our Economic Development Services (EDS) team along with Edison Carrier Solutions can help you find sites with available power, fiber and secure state and local incentives to attract, retain or expand your data center.

Lighting and Controls

Here are some tips on improving energy efficiency and managing your lighting costs.

More Less
  • Install inexpensive occupancy sensors that turn lights off in unoccupied data centers.
  • Use LED bulbs and LED exit signs.
  • Install dimmable ballasts to lower energy use in fluorescent lamps.
  • Install an Uninterruptible Power Supplies (UPS) system to provide emergency power when the input power source fails to provide near-instantaneous protection from interruptions by supplying energy stored in batteries, super capacitors or flywheels.

Your business may already qualify for incentives that could put these energy-saving upgrades into effect.


Maximize your energy-saving by effectively managing your air-conditioning systems. Here are some potential solutions for your business:

More Less
  • Sign up for HVAC maintenance and perform routine maintenance on heating and AC filters, belts, coils and bearings.
  • Check that data center cooling meets the latest ASHRAE standards for Datacom environments—many data centers can safely operate at higher temperatures than previous standards.
  • Install variable speed drives to optimize fan and pump motor operation.
  • In new construction, downsizing mechanical cooling equipment and/or electrical supply can lower costs and mechanical/electrical footprint.
  • Install air-or water-side economizers to help cut data center cooling costs by over 60% using standard, commonly available low-cost equipment.
  • Uses of best-practices air management, such as strict hot aisle/cold aisle configuration, can double the computer server cooling capacity of a data center.
  • Combined with an air-side economizer, air management can reduce data center cooling costs by over 60%.
  • For large data center facilities, a chilled water system served by a central plant is the most efficient approach to providing mechanical cooling.

Our Fiber Optic Network - Expand Your Choices

Edison Carrier Solutions, a unit of SCE, owns and operates a 5,000+ route miles of fiber optic network, one of the largest in Southern California, to support critical utility operations. In partnership with the Data Center Team, this fiber is available for lease a lit solution or via a dark fiber lease. Below are some key highlights:

  • Designed, constructed, and operated extensive telecommunications systems to support 14 million people in a 50,000+ square-mile area of Southern California.
  • Infrastructure can be used for antenna attachment and equipment colocation.
  • 890+ substations, 14,000 towers and steel poles, 900 existing cell- site collocations with fiber backhaul capability.

Demand Response Programs (DR)

With Demand Response (DR) programs, you can receive bill credits for temporarily reducing energy use during periods of high-energy demand. Choose the option that best fits your operational needs.

More Less

Automated Demand Response (Auto-DR)

Enjoy energy savings by using smart technology that effortlessly and temporarily reduces the amount of energy your business uses (known as “load reduction”) during a DR event. With Automated Demand Response (Auto-DR), load reduction is automatic and reliable, so it’s easier to capitalize on program earnings and lower energy costs.

Green icon of a talk bubble with a bar graph and a dollar sign inside it.

Finance Your Energy-Efficient Projects

Several data centers have already taken advantage of energy-efficient equipment. To help your business receive these same cost-efficient benefits, we offer low-interest financing for qualified energy-efficient projects.

The California Competes Tax Credit, an income tax credit available to businesses that want to locate in California or stay and grow in California, can help reduce your state tax for investing in your data center. Applications are evaluated based on new capital investment and jobs created

Web Content Viewer (JSR 286)