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Optimizing plug-in electric vehicle charging in interaction with a small office building

: Momber, I.; Dallinger, D.; Beer, S.; Gómez, T.; Wietschel, M.; Marnay, C.; Stadler, M.

Volltext urn:nbn:de:0011-n-1783473 (1.3 MByte PDF)
MD5 Fingerprint: 3365cced55bb478e3152b92e384ede36
Erstellt am: 8.9.2011

Karlsruhe: Fraunhofer ISI, 2011, 39 S.
Working Paper Sustainability and Innovation, S9/2011
Fraunhofer ISI ()
battery storage; building management systems; dispersed storage and generation; electric vehicle; load management; microgrid; optimization method; power system economics; road vehicle electric propulsion

This paper considers the integration of plug-in electric vehicles (PEVs) in microgrids. Extending a theoretical framework for mobile storage connection, the economic analysis here turns to the interactions of commuters and their driving behavior with office buildings.
An illustrative example for a real office building is reported. The chosen system includes solar thermal, photovoltaic, combined heat and power generation as well as an array of plug-in electric vehicles with a combined aggregated capacity of 864 kWh. With the benefit-sharing mechanism proposed here and idealized circumstances, estimated cost savings of 5% are possible.
Different pricing schemes were applied which include flat rates, demand charges, as well as hourly variable final customer tariffs and their effects on the operation of intermittent storage were revealed and examined in detail. Because the plug-in electric vehicle connection coincides with peak heat and electricity loads as well as solar radiation, it is possible to shift energy demand as desired in order to realize cost savings.