EXPORTING EV CHARGE TO THE GRID TRIAL

Page may contain affiliate links. Please see terms for details.

grober

MB Master
Joined
Jun 22, 2003
Messages
31,622
Location
Perth, Scotland
Car
W204 ESTATE
USING KALUSA WALL CHARGER


To view this content we will need your consent to set third party cookies.
For more detailed information, see our cookies page.
 
Last edited:
To view this content we will need your consent to set third party cookies.
For more detailed information, see our cookies page.
 
It is a nice idea. However it will invalidate the MB 8 year/100k miles battery warranty. This is a quote from the warranty conditions: "The high voltage battery is used exclusively as energy storage for the electric drive vehicle and not for any other applications;" The OVO trial is only with Nissan Leaf, where they seem to have negotiated battery warranty coverage.
 
Last edited:
Perhaps its just a matter of time altho there would be warranty liability "boundaries" to be worked out---grid networked chargers would have to form part of any vehicle warranty package for example. Netherlands is planning a bidirectional charging network - electrive.com
The evidence is that EV batteries life may actually benefit from this type of charge / discharge regime. And owners should always have the option of just how much EV battery capacity they make available to the grid.
Don't expect Mercedes to be at the forefront of anything EV mind.;)
 
The evidence is that EV batteries life may actually benefit from this type of charge / discharge regime. And owners should always have the option of just how much EV battery capacity they make available to the grid.

My understanding was that a Li-ion type cell only has a given life in terms of number of charge/discharge cycles. Complex batteries manage the cells to optimise this across all the cells in the battery and level the wear. This can also make it complicated to work out or describe simply 'how many times' a battery has been charges and discharged.

If you then add another type of use outwith motoring that as that ultimately involves discharging the battery then you will wear it out.
 
This may answer your question.
It would appear that accelerated battery degredation may well be a factor which should definitely be taken into account in any economic V2G consideration altho sophisticated charging may minimise it to manageable levels. However for countries with limited baseline load capabilities and a burgeoning EV ownership it might eventually become a condition of EV ownership to meet grid demand. :( As always its the unexpected cost that's hardest to plan for :oops:
 

Users who are viewing this thread

Back
Top Bottom