Intro we are back now the third part of our afternoon session new added value through key components and of course uh there has to be an expert presentation about the field of storage technology and if you happened to visit our baden-wurttemberg pavilion in the last 10 years there was always a key part the presentation of rds tech this is a medium-sized family-owned company with its headquarters here in nurting and near stuttgart and so a warm welcome to thomas spidel a ceo from rds tech energy and uh also the president of the german energy storage association we're looking forward to your presentation nice to see you nice to have you here the floor is yours thank you very much welcome ladies and gentlemen also from my side to my presentation into the session battery buffered high power charging my name is thomas spidel and i'm the ceo of ads tech energy first a few words to our company Company background so we started in ads tech already 15 years ago with a development and production of own lithium-ion battery systems based on the cell we made our own bms including all the software and also the hardware and electronics and then beginning of 2010 11 we started with large-scale battery systems up to megawatt hour scales 2012 we had our first containerized battery system and then from that direction we moved also to the charging business because we expect electric vehicles to need a lot of power even in the distributed grid areas and therefore not at every site we can set up a mid-voltage system to provide the amount of energy or power we need in 2018 we developed we started to develop a battery based charging system for oem from south germany and since 2018 also bosch is a partner of adstec and they have 39 of the shares of ads tech energy we address three different areas in the business first residential and we call it home and small business and then second industrial and third infrastructure which is also ev charging and even when the grid is not able to support enough power then we use the battery to store the energy and then push the energy out of the storage into the vehicle when a charging process is needed System overview let's come to the core of the presentation to the high power charger including a battery storage system for boosting the energy so first of all let me describe the the rough and the system and let that give me a system overview so if we have from the grid only a limited grid access and a limited power then we take the battery as a buffer and so we load the buffer with the low power and after the battery is full we can take the battery energy the stored energy with a higher power rate and put it in the electric vehicle so we can see here so we have a boosting process from let's say 50 to 100 kilowatt from the grid up to 320 kilowatt directly to charge the vehicle so high power charging can even be provided at locations equipped with a very low or limited grid access so no grid extension is necessary which is almost or which is often expensive so as you can see on the right side of the slide if we slowly charge the the battery we can pump the energy we have stored in shortest time directly into the electric vehicle so the charging process even at low power sites can can be reduced enormously to a short time and this is what we need when we drive our electric car we don't want to wait a long time to get the car refueled or recharged Charging power here you see our system in real so the maximum dc charging power of up to 320 kilowatt or two times 160 can be provided and we can distribute the charging power to one or two dispensers um so the internal buffer the internal buffer enables to boost the limited power from the grid to reach up to this 320 kilowatt to the to charge the vehicle um we have the possibility to directly connect to the 400 world lobe low voltage grid so the charge box can be almost installed at at every site starting from a support of 39 kilowatt up to 110 which is sufficient to install the chargebox directly on the on the low voltage grid um our highly integrated power inverter technology based on latest silicon carbide technology allows to get enormous efficiency not only due to a high voltage level on the dc link but also that the battery is directly coupled to this internal dc dc link backbone the design is very compact so if we want to go in distribu in distributed area so there's in in many spaces there is a not is not enough space to install containers or to install transformer stations so in this case we only need very small space to provide a fast charging capability the dispenser itself has a very small footprint it's only 400 by 400 millimeters so the dispenser can be almost installed everywhere Charge box now i have a closer look to the charge box itself as i said we can deliver an output of 320 kilowatt even at a low power connection to the grid we have an internal battery capacity of up to 140 kilowatt hours which is the lithium-ion based battery and we passed all the certifications not only for the eu standards but also for the us the the battery modules itself they are small battery modules they can easily be accessed and also be replaced even in the field we supply up to two dispensers per charge box so they can be separated and the system includes everything so this small box contains the inverter the battery the hvac which means the thermal management and also the controls of the complete system in addition to that the system is also prepared to deliver grid services such as power quality or even grid services and later on also bi-directional charging so the content of the battery of the car could be recharged or could be directly sent to the grid we also included the it technology which means security firewalls and communication units so we can connect the charge box directly to ocpp standard backbone by fire optics or even copper copper coupling the voltage range is pretty high or is pretty wide so we can support dc ranges from 150 up to 920 volt which allows us even to to support batteries of the future or cars being not available today Dispenser the dispenser let me just say a few words now to the dispenser the dispenser as i said is a very very has a very very small footprint so it can be mounted almost everywhere and it allows the output of 320 kilowatt it's a cooled cable it's a water cooled cable which provides up to 500 amps and we are compatible to as well see ccs1 or for the us and ccs2 for europe the the liquid cool system is very very flexible because we we can just deploy the dispenser up to 100 meter from the charge box itself very important is the low noise so we have no noise at all in coming from the dispenser because the dispenser not even has a fan it's just it's really quiet so in in areas for example residential environments these kinds of dispenser provide really no or have have no emissions as far as noise is concerned there's a standard 10 10 inch touchscreen installed and also rfid readers so that we can directly have access to to the charging process and as well to the with the communication to the ocpp back and as i mentioned already here's the Installation overview how the installation could be we see the space and we see the the length of the cable so we can put the the box up to 200 meters away from the grid access point and then between the booster which is the box and the dispenser we have two times 100 meters so the distance between dispenser and chargebox can be up to 100 meter which allows a very flexible installation in in many complex installation situations now we see how small the complete system really is we see the box now it's it's about 1.2 cubic meters and the box itself including the complete inverter technology the battery the hvac everything is about 2.6 tons and the dispenser is around 180 kilo as you can see it here on the right side as it pointed out so we need only very very less space which allows us the system to be installed at every any any location which makes it possible to really fast charge cars in distributed areas where no powerful grid access is available and not every in every situation we need the high power grid access because we don't need to charge one car after the other like we do on the charging hubs for example at the autobahn or highway Performance here i want to show you a performance example how to recharge eighty percent of your car in a just 20 minutes even at such a power limited criticism so we always say that recharging a car should be around 15 to 20 minutes and we can now prove here with this example that this is possible here we see three sequential charging sessions without any d rating and between every session we have 10 minutes pause and we can see it on the diagram on the right side we get the the power from the battery is pointed out in blue and the additional power comes from the grid because we have always we have some grid power being available and now the the red line points out the sum so it's the total available power from the battery and the grid and we see that this is going up to 280 kilowatt in this case uh which the car um in the in this example requests so we charged here in in this example three times after in in a sequence around 66.4 kilowatt hours which corresponds 10 corresponds to around 80 percent of the soc state of charge of the vehicle's battery so we can recharge in in only 20 minutes around 80 percent of the soc of the vehicle battery this is quite fast and in this case you see the energy which is charged in the car which is the lower right diagram and we see the energy the amount goes up and then in total it's around 199 kilowatt hours we charged within these three sessions and per session it's around 66.4 kilowatt hours and another a question we we often uh are asked is how long does it take to recharge the internal battery and what we can see here the recharging process with the grid excess of of around 80 kilowatt is roughly one 1.1 hour and 15 minutes and since we have installed quite some of these systems in the field we never run in or came in the situation that chargebox ran out of batteries so the recharging process of the battery with the energy coming from the grid is always going in parallel to the processes that the car is changing that people are waiting and that it takes some time between two sequential charging sessions Production what we see here is now we have set up a mass production in interest in east of germany and we see that now we are we are able to produce even higher volumes so between september last year and december for example we built more than 300 of these charge boxes and more than 600 dispensers up to now it's over 800. [Music] Reference installations here you see also some reference installations and we see that it perfectly fits in different situations we know from our daily life so it could be industrial park even at the gas station so we see here in the middle of the page we see a gas station which is located in berlin alexander bloods and we know from this example that even this battery which is the highest which has the highest frequency of charging processes never ran out of the battery and what we can see on the right picture so the box is just being in the corner so you can install it in the corner where little space is is left and then the dispensers with a very little footprint can be placed in almost every corner or in this case in this middle field here between the parking lots on the left side down here we see it in a in a country or in a in the area where even a transformer you see the transformer house in the in the back of the picture and so this solution can even make sense if there is a mid voltage transformer in a system but there is not enough power left to provide for example 300 kilowatt or two times 160 kilowatt charging infrastructure um the picture in the middle uh in the lower side of the of the of the picture of the slide shows um industrial site and we more and more have the experience that people or guests or even employees who are driving electric cars that they don't want to wait for hours so if they just pass or visiting the company for one or two hours then they are happy that they can recharge the car within 20 minutes or 30 minutes on the right side we see installation on a utility site in east of germany and so on many sites now not only in germany which are equipped with this technology Mobile highpower charger so let me just show you another application which we call a mobile high power charger and it contains exactly the same technology but in a different setup what we see Charging trailer here is a char we call it a charging trailer the touch charging trailer is a standard let's say it's it's on on a um it's on a trailer for a standard truck in germany or in europe and this one contains a battery which with more than 2 megawatt hours of energy capacity and 10 charging points 10 fast chargers each of them can provide 320 kilowatts so on this trailer we can provide or with this trailer we can provide 3.2 megawatt charging power distributed on 10 outlets and so why do we need this Applications the applications are temporarily solutions offering high power charging in an infrastructure which is not equipped with a high power charger infrastructure for 100 or 365 days per year so for example during holidays we have a higher amount of charging sessions or driving events we support a lot of driving events marketing or press events or even festivals so just imagine there are festivals and a lot of people are coming with the electric vehicle and just for a few days you need more charging power so you are not able to extend the grid but in this case we can use the charging trailer and this is exactly the same technology the same inverter technology the same controls and the same cooling system it's flexible in in setup and installation because it's mobile there is individual planning so we can take it everywhere around europe and we provide a 24 7 support and on-site service here on the next page you see Charging this in life so we see the side walls can be automatically be folded up so normally on the road it's closed and then if you have positioned the trailer you just open the the the wings automatically um to recharge the battery in the trailer we we need just the 400 volt low voltage grid access so three phases for 50 hertz and we we support one to 6 inlets each taking 125 amps with a standard cee plug so the recharge process can can be done almost everywhere so the maximum recharging power is 500 kilowatt and so we can recharge that complete trailer with uh within two hours in addition to that the trailer supports an island mode so without any grid connection we can just offer a charging infrastructure like a power bank on wheels um in in this island wound and then provide up to 10 charging sessions in parallel 5 ev's per side and 10 in total each up to 320 kilowatt charging in parallel also the cables the same as in the charge boxes is liquid cooled and has a ccs2 plug so the dimensions of the trailer are standard as you know it from the common standard of the trucks in germany or europe and even the weight we do not or we are within the weight specifications of the standard truck specification in europe Examples here are some examples where the trailer has already been used and we see the the porsche events so we supported the taikan launch in in barcelona and for example for this event there have been seven trucks in parallel providing 21 megawatt charging power at the same time so 70 cars can charge in parallel in each car up to 320 kilowatts so to enable such a charging performance or power on a on a side normally you have to build up quite a significant grit and and power what we also have what we see on the pictures we have some experience even in cold uh countries so we did the the winter experience in finland so even um on coat with cold temperatures the the trailer is working and can supply the energy for the charging process and what we always see is as more as more electric vehicles will come into the field into our daily lives and this will happen the next year so when we see the big oems now bringing more and more vehicles to the market so the demand of charging and especially fast charging will grow this is for sure because we don't want to wait for longer as it really needs to to get back on our on the road or to come home earlier and we driving does not mean waiting and this is important so we expect more and more supercharger not only at the autobahn or at high power grid stations so we also expect it in distributed areas or in this case even with the mobile solution which is mounted on a truck and can be provided to any location where it's needed or temporarily needed thank you for your attention and if there are any questions open from you mr fisher for example then i'm happy to answer Conclusion so first of all thank you very much uh for being with us uh uh today to be honest i especially liked your example of a mobile solution needed for a festival people gathering for uh some purpose uh um yeah at the moment uh hard to imagine but we all hope that it will be uh uh be possible soon uh and yeah i think um you pointed out uh um a lot of people always say uh as you pointed out it's not only about high power charging on on the on the motorways but but you showed a lot of different uh use cases uh for that so i think it's becoming a much more important uh um in in the future uh and it's a growing market of course we will have a study out soon okay uh um about the uh yeah the market development of of charging infrastructure yeah we even see cities um so if they have a pizzeria or museum or whatever and people are just passing by to get a pizza to go to the museum or to a concert then after one or two hours they want to leave and so in this case if you come from outside you you have to recharge within minutes and nobody wants to drive to the autobahn and lose one and a half hours just to get there and to charge and get back so our time is up thank you very much too much spider for being with us uh and hopefully next year uh we live talk live in hanover uh maybe having a coffee together so yeah thank you much for being here