What is the Impact of Utility Demand Charges on an Alternating Current Level 2 Elective Vehicle Supply Equipment Host? [electronic resource]

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Tác giả:

Ngôn ngữ: eng

Ký hiệu phân loại: 333.79 Energy

Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2015

Mô tả vật lý: Size: 7 p. : , digital, PDF file.

Bộ sưu tập: Metadata

ID: 266942

The EVSE delivered by The EV Project included both residential and non-residential units. Approximately 4,000 non-residential ACL2 EVSE were installed in workplace environments, fleet applications and publicly accessible locations near retail centers, parking lots, and similar locations. The Blink ACL2 utilized in The EV Project is capable of charging at up to 7.2 kW power, although most vehicles in The EV Project charged at about 3.7 kW. This power can be a significant additional electrical load for the charging site host. This concern becomes greater when several EVSE are in operation on a site at the same time. Many electric utilities include maximum power demand as part of their commercial rate structure. The demand charge incurred by a commercial customer is related to the peak power used during a monthly billing cycle. This is in contrast to the total energy usage that is the more familiar utility charge seen for residential service. A demand charge is typically calculated based on the highest average power level over a 15 minute period during the monthly billing cycle and is not a cumulative-type charge. One objective of The EV Project was to elucidate the motivations and hindrances to potential site hosts of non-residential EVSE. The imposition of electric utility demand charges represents such a potential hindrance. This subject was introduced in the paper: DC Fast Charge - Demand Charge Reduction1, specifically dealing with DC Fast Chargers. The concept remains relevant to ACL2 EVSE, especially when several EVSE are deployed at the same site, which occurred frequently in the EV Project. In fact, the average number of ACL2 EVSE per site was 2.58 and varied by market from 1.79 to 3.45 per site. This paper identifies the impact of demand charges on non-residential ACL2 hosts in The EV Project
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