3/22/2001

AEP TESTS SODIUM SULFUR BATTERY’S
ELECTRICAL ENERGY STORAGE CAPABILITIES

COLUMBUS, Ohio, March 22, 2001 – Engineers at American Electric Power’s (NYSE:AEP) research laboratory are testing a new stationary battery capable of storing large amounts of electrical energy for use during peak energy demand and for power quality applications. Such technology could provide relief from generation shortages and transmission constraints that lead to blackouts, curtailments and other power interruptions.

Tokyo Electric Power Company (TEPCO) and NGK Insulators Ltd. developed the high-density sodium-sulfur (NAS) battery during the 1980s. As part of that development, more than 20 NAS battery demonstrations have been installed in Japan, including two 6-megawatt plants at TEPCO stations. Each plant provides up to 48 megawatt-hours of energy storage for daily load leveling applications, which reduce the amount of generation needed during hours of peak usage.

As part of a joint effort with TEPCO and NGK to introduce the NAS battery technology in the United States, AEP is testing a 12.5-kilowatt compact battery at the Dolan Technology Center. The experiment marks the first stationary battery application in the United States using sodium-sulfur battery technology.

Cost-effective bulk energy storage has often been referred to as the missing link in maximizing power delivery efficiencies. NAS technology can provide that link, said Dave Nichols, manager at Dolan. Cost and system compatibility issues are the major factors AEP will evaluate during the next several months, Nichols said.

“The battery is a new tool that we have to work with in the future to resolve energy delivery problems. It makes it feasible to utilize electrical energy storage on a much larger scale than in the past,” Nichols said.

Storing electrical energy is not a new idea and has been done with other technologies, such as flywheels, capacitors, lead acid batteries, compressed air and super conducting magnetic energy storage. AEP also has a pumped-storage hydroelectric project at its 605,000-kW Smith Mountain plant.

What makes the NAS battery technology revolutionary is its large energy density, high efficiency and long-term durability. The energy density of the NAS battery is three times larger than conventional lead acid batteries, the battery can be charged in eight hours and its electrical energy can be discharged over a similar period or stored indefinitely if the temperature is maintained at 600 degrees Fahrenheit.

“The sodium-sulfur battery reduces the amount of generation and distribution and transmission infrastructure needed to meet peak demand,” Nichols said. “It can be used to deliver electricity into areas that previously had restrictions due to transmission or distribution constraints, and the battery can function as a standby source to protect against power disturbances.”

The NAS battery has been tested in Japan for load leveling applications, as an emergency power source and as a buffer for the unstable output of natural energy sources, such as wind and solar energy. The battery makes it possible to stabilize electricity demand, which fluctuates considerably between day and night. As a result, customers can reduce electricity bills.

By charging the battery during off-peak hours and using the electricity during peaks, an energy provider is able to operate its generation more efficiently. This process becomes economical to a customer if there is a big difference in the price of electricity between off-peak and peak times, if peak demand is reduced or if time of day pricing is implemented.

If testing is successful, the NAS battery will be installed later this year at another AEP location for peak shaving and emergencies. The goal is to offer the battery commercially in the United States in two to three years.

American Electric Power is a multinational energy company based in Columbus. AEP owns and operates more than 38,000 megawatts of generating capacity, making it one of America’s largest generators of electricity. The company is also a leading wholesale energy marketer and trader, ranking second in the U.S. in electricity volume. AEP provides retail electricity to more than 9 million customers worldwide and has more than $55 billion in assets, primarily in the U.S. with holdings in select international markets. Wholly owned subsidiaries are involved in power engineering and construction services, energy management and telecommunications.

Jeri Waters
Media Relations
614/223-1917

More From PSO

Learn More

Manage Your Electric Bill Year-Round

Sign Up Now Pay Online for Free with Paperless Billing

Pay Online for Free with Paperless Billing

Use Online Form Report Outages On Your Mobile Phone

Report Outages On Your Mobile Phone

How We Restore Power Learn more

How We Restore Power

Visit AEP.com
Use of this site constitutes acceptance of the AEP Terms and Conditions. View our Privacy Policy. © 1996-2019 American Electric Power. All Rights Reserved.

Privacy Policy

Privacy Policy for Public Service Company of Oklahoma (PSO), a unit of American Electric Power (AEP)

Scope

This Privacy Policy applies only to PSOklahoma.com and the Public Service Company of Oklahoma customer mobile app (com.aep.customerapp.pso). Other AEP websites and apps may be governed by their own privacy policies, appropriate to the uses and needs of each. Throughout the site or app, we may provide links to resources and sites that are not part of PSOklahoma.com or the Public Service Company of Oklahoma customer mobile app. This Privacy Policy does not apply to those resources and sites.

Consent

By using this site or app, you consent to the terms of this Privacy Policy. Whenever you submit information via this site or app, you agree to the collection, use, and disclosure of that information in accordance with this Privacy Policy.

Information Collected

  1. Passively collected information

    During your use of this site or app, we may collect anonymous information about your visit here through the use of server logs, cookies, scripts, tracking pixels and other Web traffic tracking systems. This information is aggregated and used to improve user experience through analysis of user activities. This information is never combined with any of the personally identifiable information you may provide in your use of the features of this site or app.
  2. Personally identifiable information

    On certain forms of this site or app, you may be asked to provide information about yourself or your account with us, either to identify yourself to us or to request a service from us. In each case, we will inform you what information is provided at your option and what information is required to complete the transaction or activity you are engaged in. If you are unwilling to provide this required information, you will be unable to complete the requested transaction.

Use and disclosure of information

The information you provide to us will be used to respond to requests you may make for services. Some or all of this information may be added to your permanent account record and may be used for research purposes.

In addition, we may use elements of this information in the following situations:

  1. We may transfer the information to PSO’s affiliates and subsidiaries, unless such transfer is prohibited by law;
  2. We may transfer the information as part of a merger, consolidation, acquisition, divestiture or other corporate restructuring (including bankruptcy);
  3. We may make the information available to third parties who are providing the product, service or information that you have requested (but not your password);
  4. We may make such information available to third parties who are providing services to PSO (for example, providing the information to third parties performing computer-related services for PSO);
  5. We may use the information to communicate with you about products and services that may be of interest to you.
  6. We may disclose the information if we form a good-faith belief that disclosure of such information is necessary to investigate, prevent, or take action regarding any illegal activities or regarding interference with the operation of our site or violation of its terms of use; or
  7. We may disclose the information if we believe that disclosure is required by law or regulation or in response to a subpoena or other order of a court or other governmental agency.

PSO uses Flurry Analytics Service (provided by Yahoo) in order to improve its mobile apps. Flurry’s privacy policy governs the use of this information.

Also, PSO reserves the right to share any aggregated information (i.e., non-personally identifiable information) with any third parties for any reason, unless prohibited by law.

We will not sell, rent or otherwise disclose the information we gather about you or your account to any third party, except as outlined in this Privacy Policy.

Security

PSO takes reasonable steps to protect your personally identifiable information as it is transferred to us, through the use of Web technologies such as the Secure Sockets Layer and others. However, no Internet transmission of information is ever completely secure or error-free. In particular, e-mail sent to or from PSO may not be secure.

How to Reach Us

If you would like to update your personally identifiable information or if you have questions about this privacy policy, please contact us.

Changes to This Policy

PSO reserves the right to change this Privacy Policy at any time. If this Privacy Policy changes, the revised policy will be posted to this site. Please review this Privacy Policy before you provide any personally identifiable information through this site. Use of our web site after the posting of a revised privacy policy constitutes your consent to the revised policy.

This policy was last revised on December 13, 2017.

Close ×

Sign Up For Alerts

Subscribing to PSO alerts gives you instant notification for:

  • Billing & Payments - avoid late payments and disconnection
  • Outage Updates - find out if there's an outage at your address and when power will be back on

Win an Xbox One with Alerts!

Enroll in alerts to be eligible to win. Subscribing to I&M alerts gives you instant notification for:

  • Billing & Payments - avoid late payments and disconnection
  • Outage Updates - find out if there's an outage at your address and when power will be back on

Loading video...

×