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the subscribe. know to dw talking entry at the end of september can helene slam you to the us state of north carolina? it cost blackouts across the state. but then something unusual started happening. not everyone was without power. some electric vehicle owners could keep the lights on because the car battery started powering the homes. it was a pretty cool solution to a pretty specific problem. but this could be the start of something much bigger. it turns out as a way to connect up to thousands, if not millions of costs like these into a single virtual power plant that can charge up and introduce cheap and give that power back when it's needed most. it's cold because the grid and it's a pretty great solution to a lot of big problems from keeping your lights on to reducing your energy bill to making sure that the entire electricity grid keeps working properly. here's how it

works and why it might not be long before it's everywhere. ok, to understand how this unassuming thing can do all that we 1st need to talk about the grid. it's everyone's favorite, john global network, a cables and power stations that lets us do pretty much everything in modern society. and the way it works is pretty simple, is the stuff that goes in from fossil fuel power plants and renewable energy. and the stuff that comes out, which is the electricity, that's utah, j e v. and watch this video right now. it's a drop of grid operate is the balance that supply and demand caustic. that way, you can always provide the exact same frequency of electricity through this joint network. if too much stuff going in, the frequency could go up and fire appliances to little and it would go down causing blackouts. that take a look at how much electricity we typically use over the course of a day. this part right here called peak demand, is usually messes everything up. that happens mostly in the evenings as we get back

home from work and turn on all our appliances right. at the same time, but the day solar energy is starting to fade out. and this is what happens on the old plug in our rebates. it's like every house with a navy doubles. the amount of electricity is taken from the grid. multiply that by a few 1000000 cause and then add in the other big electric appliances that we need to start using like a comes. it's pretty clear that keeping everything perfectly balance is going to keep getting hotter and hotter. now, but the problem is typically dealt with by turning on more fossil fuel tile tends to meet demand, but that's bad for the final. and it's usually incredibly inefficient. we made a video about how much energy gets wasted this way. the other big solution that doesn't use fossil fuels is to build batteries that can store renewable energy during the day and put that energy into to create any evening whenever it's needed most, i guess for a lot of new batteries of going into electric vehicles. this is where the vehicles, the grid of the 2 g comes in. the idea is so that other tricity flowed from the battery, the other charges into the grid and back again as needed. the principal,

fairly, quite simple. that's robin book an entrepreneur who just launched the 1st b to g enabled cost sharing service in europe with $500.00 e v. so i can send electricity back into the grid when they're not being used. if there's a lot of renewables, then you're charged your car dash, now can you discharge your car? that works because during the day the vehicles can charge up whenever electricity is cheap and demand is low without putting extra stress on the grid. then in the evening, when peak demand arrives, rid operators can tap into those costs as extra capacity to send back into the grid on days with a lot of funding wind. this can actually even make you a bit of cash. in some countries, grid afraid is, will pay you to charge you. your call is a need somewhere for that extra energy to go to keep everything balanced. then you can sell it into the electricity market in the evening. to know this all sounds cool over the parking your driveway, but it becomes a really big deal when this thousands, if not millions, of cause with this capability. all those batteries suddenly start to function like

a virtual power plant. let's say there isn't much renewable energy today, or people are using a lot of electricity. instead of turning on a back up fossil fuel power, plant grid operators can send out a signal to this huge network of card batteries. if you can send just enough electricity back into the grid to keep everything balance until the demand goes back down or renewables, keep back in. just to get an idea, go to like 8000000 cars. now going to 9000000 in the lunch. and we have just like $2000000.00 of them being directional, you can, you have enough batteries for the entire reduction to month. so you can just, you can shut down dash forever. so why is this already everywhere? well, there's the obvious thing, cost. b, g only works with a special by directional in photo, which would even need to be built into the call all the charge of when they made that and also need software and hardware to communicate with the grid operators. and for home charging, you'll need a small electricity made this contracting amount of electricity going both ways.

all of that needs to meet extremely high standards expected of both cause and anything that connects to the grid. one trial had an upfront cost equivalent to $5600.00 euro's per participant. but that same charles found that the annual revenue from storing cheap electricity and selling back into the grid was anywhere between 40800 years. so if those initial costs get cheaper, it could be profitable, much faster. then there's the battery problem. batteries degrade the more you charge and discharge them. using them as a pack for the grid would result in them charging and discharging a lot more frequently than they would from being used normally. and as an a, these battery degrades the distance, it can travel on a single charge, also known as its range, gets worse. so it's a comedy factor as well, already competing over the range of that cause adding in the to g isn't very appealing. the advocates. so this isn't a problem with the new types of batteries that will be coming this down to the new easy city of mine phosphate batteries are typically able to go from full to empty

and back up to full again, not as a cycle. well, them $3000.00 times, which is more than double the amount of today's most common batteries. but once you get past the cost and battery problems, is the question of whether it's even legal, where you live in most places right now, there isn't any way to actually sell energy back into the grid from your call. and that's because regulators are interested in the idea, but pretty nervous about how to actually make it work. remember how important it is to keep everything balanced? well, controlling power plants. so when phones is a little bit easier than thousands, if not millions of cause and charges distributed around the country, which only to be able to communicate with each other and the grid perfectly. if your car becomes a battery on wheels, it's a complete new function of the car. and with that also risk risk involved. and so if something goes wrong, then everyone is flipping out the car. there are some promising things on the horizon. there's a propos, low in california to required by direction charging an old new eaves at some point

in the future. in germany's vice chancellor told german media that the regulation is needed to allow by directional charging would be in place by january 1st 2025. but it's going to take a long time from the types of cause you can buy. it will make any difference. that's especially true because unless you live in your own standalone house with a personal chombo, this technology doesn't really make any sense yet. right now, most egos do tend to earn their own home or live in the suburbs which makes the 2 g a bit easier in the show to them. but if you live in a high density city in an apartment block, there are only so many public charges fee to leave you a call plugged into a light. so until we figure that out, there's another way to make a lot of vehicles in the city by directional very quickly. and that's by converting these and these, and these big plates of vehicles with big batteries already sit around for most of the day and organized and operated on regular schedules. that's what the all the i did in the u. k. earlier this year, converting to waste collection trucks into by directional vehicles with batteries 6

times larger than typical call. this small scale public trial approach is a way to convince manufacturer is regulated. so you can see humans that this technology can work and is a good idea. they want to 1st decline it in a controlled environment. so it's, it's not a technology. you just add to a car and give it to the market. you really have to be in control also as a comic or the word might have the biggest impact is where the most the visa coming online. and that's china. these are a big priority for the chinese government. that's the laurie. i'm a sucker who spent over a decade researching time is industrial and climate policies. so all the incentives are there, right? they can not make incentive to political incentive. they want to make this work. the country has started its own v t g trials, and the number of cities setting up by directional charges and converting bust sweets. in order to test how easily the technology you can integrate into the grid . but mazzocco says if china decides to make the 2 g a priority, all that test infrastructure could very quickly become to know that he's been

traditionally a china has been quite good at allowing so local level experimentation. that's worked very well in the the industry. the trade system is very good at that in investing and infrastructure. so if there is something physical to be built done, i think you'll be a lot easier to see that happen. chinese or to make is like be id already have some models for by directional charging. and that's putting a lot of pressure on manufacturers and both europe and the united states to keep up 1st regions of trying to slow down the rise of chinese imports through tars. so making that cosby g compatible could give them the competitive edge or so while it won't happen overnight, the days of seeing all causes just cause might soon be coming to an end. despite the high costs and regulation barriers, a lot of big players in the industry are seeing the potential for technology like b 2, g to change the way we think about how and when we use electricity. that could make

a big difference for our wallets and the stability of all those cables, keeping all lights on. because if we do manage to electrify everything and the grid is going to need all the help you can get. so let us know what you're thinking. the comments below, do you on your next call to be v t g compatible. and for more videos like this, subscribe to all channels the meet, the word of the future. it's name such a box. it's qualification, the tennessee. and it goes, oh good, modest. to see both developers wanted to revolutionize evan traffic. and so when could i get to work tomorrow today? next on d, w. when a man comes to buy something from us,

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or your 5 key is to safe for food. teeth cleaning to prevent contamination. a separate role and cook foods to avoid cross contaminate cooks thoroughly to kill microorganisms. keep food at safe temperatures, cool to prevent bacterial growth. use safe water and safer all materials to avoid congenital food producers are the ones primarily responsible for the safety of the food. but you can protect yourself

and your family from diseases in the home by applying the 5 keys to see for use them. you also have a role to play the there are nearly 10 to how centers quakes every year. and another 50 to 60 volcanic eruptions. to that nuclear tests, we know this because they're highly sensitive monitoring stations around the world that sometimes scientist encounter a mystery. all that and the more on this edition of dw science show, welcome to tomorrow, today. here in the middle of the forest in south west and germany does a very special research center. the black forest observe a tree o b s o. it's an ideal location for measuring.