Representative of the Bulgarian Institute for Standardization (BDS) and the Electric Vehicles Industrial Cluster of Bulgaria (EVIC) participated in the “Transatlantic eMobility Standardization Round Table”, carried out in Brussels on 28-29.11.2012. Participation of the Bulgarian delegate was financed under the auspices of the **project “Improvement of the standardization system in Bulgaria”**.
During the meeting were discussed the current trends in the development and proliferation of electric vehicles (EV) and related infrastructure in the EU and the USA. The expectations are for the US to have at least 1 million EVs on the roads by 2015 and for the EU to achieve essentially CO2-free city logistics by 2030, to halve the use of ‘conventionally-fuelled’ cars in urban transport by 2030 and to phase them out in cities by 2050. Together with the increasing number of EVs the charging infrastructure will be built out, including DC fast charging stations. Utilization of EVs will bring significant benefits for the environment (reduction of pollution and CO2 emissions), energy efficiency and decrease of noise resulting from transportation.
Increasing the quantity of EVs utilized requires either the capacity of the electric transmission and distribution networks to be substantially increased trough investment not currently foreseen or the utilization of the network to be adjusted according to its free capacity in any given moment. To this end EVIC and its member suggest the following measures to be undertaken:
Charging of EVs potentially can be leveraged by electric utilities operators and balance response parties to more smoothly add Renewable Energy Sources (RES) and other generating facilities – by providing additional consumers for the periods when excess energy is generated, such resulting from climate conditions. According to participants in the SmartCharging ad-hoc working group of CEN/CENELEC the charging stations can be designed in such a way so that the parameters of charging are automatically adjusted in a grid stabilizing way according to the momentary fluctuations (in the range between 1 millisecond and 1 second) common to RES depending on the climate. In the roadmaps of the standardization organizations are also included the promising technologies for “reverse energy flow” where the source are the batteries of the EV: Vehicle-to-Grid (distributed system for electricity storage, virtual power plant), Vehicle-to-Home (in case of natural disaster or grid failure), Vehicle-to-Load (to power individual loads), Vehicle-to-Vehicle. For the implementation of Vehicle/Battery-to-Grid are required SmartGrid and SmartCharge, but because of the limited battery charge/discharge cycles the consumers should be financially compensated for the usage of their battery as energy source for the grid.
One of recommendation made at the Round table is to enhance the regulatory framework with a simplified procedure allowing the end users connected at low voltage to sell electricity to the grid if they have connected an energy storage device.