Transfer of the kilowatthour

An Edison Electric Institute (EEI) - National Bureau of Standards (NBS) research project was conducted in order to determine how accurately the unit of energy (kilowatthour) is maintained in the electric utility laboratories, and to investigate methods of improving the transfer of the unit of energy. This paper discusses the establishment of a testing facility and the evaluation of energy transfer standards. Recommendations are given for the performing of interlaboratory tests (round-robins) and the use of special containers for shipping standards by commercial airlines.