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Kiwigrid, EnergieDock and Mit­netz Strom demon­strate how EV charg­ing can con­tribute to grid stability

Dres­den: As part of the Flex­Hub research project, Kiwigrid, EnergieDock and Mit­netz Strom have demon­strat­ed how flex­i­ble loads can be man­aged via a flex­i­bil­i­ty mar­ket to con­tribute to grid stability.

In the dis­trib­uted ener­gy world, gen­er­a­tion and demand need to be coor­di­nat­ed dif­fer­ent­ly than before. When elec­tric­i­ty demand is low­er than green elec­tric­i­ty pro­duc­tion and the grid at risk of over­load, con­sump­tion should be intel­li­gent­ly man­aged via dis­trib­uted flex­i­ble loads instead of shut­ting down renew­able plants.

6,482 GWh* of renew­able gen­er­a­tion were lost across Ger­many in 2019 due to shut­ting down renew­able pro­duc­tion to stem the risk of grid over­load, known as feed-in man­age­ment mea­sures. The asso­ci­at­ed costs of almost € 710 mil­lion were passed on to end-con­sumers via grid fees. In 2020, there was a sig­nif­i­cant increase in cur­tail­ments of renew­able feed-in com­pared to the pre­vi­ous year.

Fund­ed by the Ger­man Fed­er­al Min­istry for Eco­nom­ic Affairs and Ener­gy, the Flex­Hub research project is explor­ing how exist­ing grid infra­struc­ture can be used more effi­cient­ly and how unnec­es­sary and expen­sive grid expan­sion can be avoid­ed. The part­ners are inves­ti­gat­ing how har­ness­ing flex­i­ble assets can help max­i­mize feed-in and avoid shut­ting down plants and, there­fore, the cost of com­pen­sa­tion pay­ments to plant operators.

A live demon­stra­tion has shown how users of a home ener­gy man­age­ment sys­tem can make their elec­tric vehi­cle (EV) avail­able to a flex­i­bil­i­ty mar­ket as a flex­i­ble load. The time-coor­di­nat­ed man­age­ment of flex­i­ble loads serves grid sta­bil­i­ty and opens up var­i­ous new busi­ness cas­es for dis­tri­b­u­tion sys­tem oper­a­tors, aggre­ga­tors and bal­ance respon­si­ble par­ties. As a result, elec­tric­i­ty costs for end-cus­tomers could be reduced and cus­tomer-ori­ent­ed, con­ve­nient new ener­gy offers made available.

The demon­stra­tion used the ener­gy ser­vice plat­form KiwiOS and the home ener­gy man­age­ment sys­tem by soft­ware and IoT com­pa­ny Kiwigrid, man­ag­ing intel­li­gent devices such as pho­to­volta­ic sys­tems, elec­tric­i­ty stor­age units and EV charg­ing sta­tions. The KiwiOS plat­form secure­ly and scal­ably process­es immense amounts of data from dis­trib­uted ener­gy resources in real-time. EnergieDock, a spin-off of HAW Ham­burg, con­trols the Kiwigrid home ener­gy man­age­ment sys­tem with its soft­ware plat­form for the flex­i­bil­i­ty mar­ket The dis­tri­b­u­tion grid oper­a­tor Mit­netz Strom reports the need for increased elec­tric­i­ty demand via the user inter­face in sit­u­a­tions such as a sur­plus of renew­able gen­er­a­tion being fore­cast for the fol­low­ing day.

Dr. Frank Schlicht­ing, CEO of Kiwigrid:

Flex­i­bil­i­ty is cru­cial for the ener­gy tran­si­tion because it is the only way to max­i­mize the use of renew­ables. To inte­grate it into the ener­gy sys­tem, we need a pow­er­ful, high­ly secure plat­form designed specif­i­cal­ly for the ener­gy sec­tor with ener­gy prod­ucts run­ning on it. Hav­ing reached an impor­tant mile­stone with the suc­cess­ful test­ing, we’re look­ing for­ward to the roll-out of this advanced tech­nol­o­gy, to which our KiwiOS and ener­gy soft­ware will make a sig­nif­i­cant contribution.”

Dr. Tim Deth­lefs, founder and CEO of EnergieDock:

Our solu­tion enables grid oper­a­tors to coor­di­nate flex­i­ble assets instead of hav­ing to shut them down, allow­ing them to gen­er­ate val­ue from grid sta­bi­liz­ing tech­nol­o­gy. As a start­up, we cre­ate a fair ener­gy mar­ket for all stake­hold­ers. The Flex­Hub project allows us to imple­ment this vision with strong partners.”

Steve Bahn, Process and Sys­tem Man­age­ment Meter2Cash at Mit­netz Strom:

The suc­cess­ful demon­stra­tion with Kiwigrid and EnergieDock proves that the tech­nol­o­gy under­pin­ning our Net­zFlex tar­iff is also suit­able for oth­er use cas­es involv­ing the man­age­ment of flex­i­ble assets. Pilot cus­tomers with elec­tric vehi­cles will test the tech­nol­o­gy this year to demon­strate the tech­ni­cal fea­si­bil­i­ty and enabling us to gath­er valu­able cus­tomer feedback.”

 * Source: Annu­al Report of the Fed­er­al Net­work Agency 2019, see: and

About Kiwigrid
Kiwigrid is the soft­ware and IoT com­pa­ny for renew­able ener­gy. The KiwiOS plat­form is used to oper­ate white label prod­ucts for ener­gy sup­pli­ers, the auto­mo­tive indus­try and man­u­fac­tur­ers of decen­tral­ized ener­gy sys­tems. Kiwigrid enables its cus­tomers to open up new mar­kets, diver­si­fy their offer­ings and dif­fer­en­ti­ate them­selves from the com­pe­ti­tion. The Dres­den-based com­pa­ny was found­ed in 2011 and cur­rent­ly employs over 150 peo­ple. Kiwigrid is a leader for intel­li­gent ener­gy man­age­ment and works with E.ON, Bay­Wa r.e., LG Elec­tron­ics among others.

About EnergieDock
EnergieDock is a start­up spun out of research on ener­gy mar­kets at the Ham­burg Uni­ver­si­ty of Applied Sci­ences. The Ham­burg-based start­up was found­ed in April 2020, in the midst of the COVID-19 cri­sis, by sci­en­tists Dr. Tim Deth­lefs, Dr. Tim Plath and Dr. Thomas Preisler and is pur­su­ing the mis­sion of cre­at­ing a fair ener­gy mar­ket for flex­i­bil­i­ty. Now oper­at­ing with five employ­ees, the young com­pa­ny has already con­vinced cus­tomers of its unique approach and achieved prof­itabil­i­ty in its found­ing year.

About Mit­netz Strom
Mit­teldeutsche Net­zge­sellschaft Strom mbH (MIT­NETZ STROM), based in Kabels­ke­tal, is a whol­ly owned sub­sidiary of envia Mit­teldeutsche Energie AG (envi­aM). As the largest region­al dis­tri­b­u­tion sys­tem oper­a­tor in east­ern Ger­many, MIT­NETZ STROM is respon­si­ble, among oth­er things, for plan­ning, oper­at­ing and mar­ket­ing the envi­aM elec­tric­i­ty grid. The elec­tric­i­ty dis­tri­b­u­tion grid man­aged by MIT­NETZ STROM has a length of around 74,000 kilo­me­ters and cov­ers parts of the fed­er­al states of Bran­den­burg, Sax­ony, Sax­ony-Anhalt and Thuringia.

About Flex­Hub
The project “Flex­Hub — Verteiltes Flex­i­bil­itäts­daten­reg­is­ter für Strom­märk­te der Energiewende” (rough­ly trans­lat­ed as Dis­trib­uted Flex­i­bil­i­ty Data Reg­istry for Elec­tric­i­ty Mar­kets in the Ener­gy Tran­si­tion) is fund­ed by the Ger­man Fed­er­al Min­istry for Eco­nom­ic Affairs and Ener­gy. The project has been run­ning since 2019 and is expect­ed to end on Decem­ber 31, 2022. The project devel­ops a flex­i­bil­i­ty data reg­is­ter with an ener­gy mar­ket for flex­i­ble loads and gen­er­a­tors. The part­ners of the research project are FGH e.V. (con­sor­tium leader), Fraun­hofer FIT, Fraun­hofer FKIE, EnergieDock UG sub­con­tract­ed by HAW Ham­burg, Kiwigrid GmbH, RWTH Aachen and MIT­NETZ STROM.

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