LADE devel­ops inter­ac­tive vehi­cle-to-grid simulator

The Mainz-based e‑mobility start­up LADE has devel­oped an inter­ac­tive visu­al­iza­tion tool that illus­trates the con­crete con­tri­bu­tion vehi­cle-to-grid (V2G) can make to CO2-free pow­er gen­er­a­tion. The V2G sim­u­la­tor is now avail­able for free use at

Den­nis Schul­mey­er, CEO LADE: “Using elec­tric car bat­ter­ies as stor­age can be an extreme­ly impor­tant build­ing block in achiev­ing Ger­many’s cli­mate tar­gets. The tech­nol­o­gy can be imple­ment­ed very, very eas­i­ly and cheap­ly, has an enor­mous impact, and the stor­age facil­i­ties are avail­able any­way. We real­ly need to get a move on with the ener­gy tran­si­tion because of the impend­ing cli­mate cri­sis, and we can’t wait until hydro­gen becomes effi­cient. We need to act now — and elec­tric car bat­ter­ies can play a cru­cial role in that!”

Real data from the Fed­er­al Net­work Agency

Vehi­cle-to-grid refers to the inter­me­di­ate stor­age of elec­tric­i­ty in the bat­tery of an elec­tric vehi­cle, which is fed back into the ener­gy sys­tem as need­ed. Based on real data from the Fed­er­al Net­work Agency, the V2G sim­u­la­tor con­crete­ly illus­trates what this could look like for Ger­many. For freely selec­table time peri­ods, it shows the total elec­tric­i­ty con­sump­tion in Ger­many as well as the pow­er gen­er­at­ed by means of wind and solar ener­gy. Var­i­ous expan­sion tar­gets for renew­able ener­gies and the num­ber of e‑cars can be set via con­trollers. In addi­tion, two con­crete sce­nar­ios are pre­set that can be viewed via the tool: the traf­fic light coali­tion’s tar­gets for 2030 and the Ago­ra Ener­gy Tran­si­tion sce­nario “Cli­mate Neu­tral 2045”.

The LADE tool shows that if the Ger­man gov­ern­ment is able to achieve its tar­get of 15 mil­lion elec­tric cars by 2030 and also con­tin­ues to vig­or­ous­ly expand renew­ables, it is real­is­tic to expect that in the fur­ther course of time around 95 per­cent of the elec­tric­i­ty sup­ply in this coun­try will be cov­ered by wind, solar and bat­ter­ies from e‑cars alone.

Den­nis Schul­mey­er: “Our sim­u­la­tor clear­ly shows that, as ear­ly as 2030, we can use the bat­ter­ies of elec­tric cars to store away vir­tu­al­ly all the peaks that will result from the fur­ther expan­sion of renew­able ener­gies. In this way, elec­tric­i­ty can be used on a time-delayed basis.”

The course must be set now

For the poten­tial of V2G to be ful­ly exploit­ed, reg­u­la­tion and stan­dard­iza­tion as quick­ly as pos­si­ble is of the utmost impor­tance. This con­cerns, for exam­ple, manda­to­ry and pol­i­cy-sup­port­ed bidi­rec­tion­al AC charg­ers in the vehi­cle and a remu­ner­a­tion sys­tem that is as sim­ple as possible.

Den­nis Schul­mey­er: “The course must be set now so that we can actu­al­ly make full use of vehi­cle-to-grid in five years at the lat­est. Tech­no­log­i­cal­ly, this is pos­si­ble with­out any prob­lems, but there is a need for action in terms of orga­ni­za­tion and reg­u­la­tion. This is where pol­i­tics, indus­try and sci­ence all have a role to play. Vehi­cle-to-grid gives us a huge oppor­tu­ni­ty that we must seize.”

AC charg­ing infra­struc­ture as a more sen­si­ble alternative

In the com­pa­ny’s view, V2G can only be imple­ment­ed in a com­mer­cial­ly viable way with AC or AC charg­ing points. In order to exploit the full poten­tial of the tech­nol­o­gy, vehi­cles must, if pos­si­ble, always be con­nect­ed to the grid via V2G-capa­ble charg­ing points when they are parked — in oth­er words, more charg­ing points are need­ed than vehi­cles. Since DC charg­ing infra­struc­ture is more com­plex and in many cas­es more expen­sive to build and oper­ate, V2G can be imple­ment­ed much more cheap­ly and resource-effi­cient­ly with AC technology.

LADE CEO Den­nis Schul­mey­er: “The vast major­i­ty of charg­ing process­es can be cov­ered more eco­nom­i­cal­ly and even more con­ve­nient­ly with AC charg­ing than with DC charg­ing points. If the DC charg­ing infra­struc­ture becomes estab­lished, V2G will be reserved main­ly for home­own­ers. For all oth­er mar­ket par­tic­i­pants, V2G will become more com­pli­cat­ed and less profitable.”