Bellcore Developing Specs for Flywheel Batteries for Use in Telecomm

Subject: UFTO Note – Bellcore Developing Specs for Flywheel Batteries for Use in Telecomm
Date: Tue, 28 Jan 1997 12:33:55 -0800
From: Ed Beardsworth <>

| ** UFTO ** Edward Beardsworth ** Consultant
| 951 Lincoln Ave. tel 415-328-5670
| Palo Alto CA 94301-3041 fax 415-328-5675

Bellcore Developing Specs for Flywheel Batteries for Use in Telecomm

Bellcore (now owned by SAIC, but still representing the technical needs of the RBOCs) is developing what they call “generic requirements” for flywheel batteries to meet growing needs for extremely reliable back up power on the telecomm system. The key goals are high reliability, low maintenance and long life in what they call “outside plant batteries,” which support equipment in remote locations. Systems would range from 0.1 to 5 kWh, over several hours (i.e. relatively low power). Their view is that they have an existing need that provides a good first application and sizable first market. Their leadership could prove useful to the overall development of flywheel batteries, which may take on a much larger role in storage, power quality and uninterruptible power applications, where utilities have a strong interest.

They are inviting outside parties to participate with them in this process, as outlined in the announcement attached below. The cost schedule hasn’t been determined as yet.

Bellcore has had very little contact with utilities thus far, but they would like to, particularly to take into account issues of seismic effects. (Only one utility was represented at the safety forum in November 1995. Incidentally, the documentation of that meeting is available from Bellcore for a fee of $200.)


Bellcore has been active in the potential use of Flywheel Energy Storage Systems (FESS) in telecommunications for over three years. This was motivated by our involvement in dealing with the many problems associated with valve-regulated lead-acid batteries in the telecommunications outside plant environment. Bellcore envisions FESSs as eventually replacing those batteries in that environment and perhaps many other applications.

Bellcore convened a symposium on the subject of employing FESS in telecommunications in July 1995 in San Diego, and held a safety forum on FESS on November 15, 1995 at Bellcore’s facility in Chester, New Jersey. Bellcore has an experimental FESS test facility in Chester and has an operating 5kwh system and some smaller FESSs operating experimentally. Bellcore conducted a basic materials investigation in 1996 that consisted of iterative computer modeling and testing of the impact of carbon composites into steel containment targets. This has led to a three-dimensional finite element model that enables us to identify generic design requirements for containment regimes.

Bellcore now invites all interested members of the flywheel energy storage system industry and local exchange and interexchange carriers, and any other members of the telecommunications industry to fund and participate in the development of a new generic requirements document to specify functionality and operability requirements for FESSs in telecommunications applications.

Bellcore proposes to convene a Bellcore Technical Forum (BTF) for funders to address development of a new Bellcore GR covering proposed requirements for FESS applications. The BTF would consist of one or more meetings to:

– Scope out the issues associated with FESS functionality in telecommunications, as well as operational issues, such as Network Equipment Building Standards (NEBS), Lightning and Earthquake concerns, power concerns, and physical design. – Develop a schedule for funders’ participation in development of a draft GR – Determine if additional Industry input will be necessary – Produce and publish a Bellcore GR on FESS in Telecommunications.

It is expected that the development of the GR will take most of 1997 to complete.

Funders will have the opportunity to provide nonproprietary input into the technical descriptions of the material, to comment on all draft text, to receive the GR and Issues List Reports(ILRs), if any are funded, pertaining to this release of the GR, and to exercise other rights and undertake responsibilities as provided by the applicable funding agreements with Bellcore and by law. Interactions beyond any meetings with funders may be via letters, conference calls, faxes or electronic mail.

It should be noted that Bellcore does not make procurement decisions for any Bellcore client company. Bellcore activities that involve industry interactions in no way indicate a potential purchase or selection decision by any Bellcore client company.

Bellcore reserves the right to alter or withdraw this proposal if there is insufficient interest in this invitation.

If your company is interested in funding and participating in the development of these proposed Bellcore Generic Requirements, please contact Bellcore by March 31, 1997:

Lawrence M. Slavin Bellcore 445 South Street, MCC 1C-117B Morristown, NJ 07960
201-829-4330 201-829-5886 (FAX)

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