Some time ago, Europe was short of electricity, and a big mess was caused.
In order to scare everyone to use less electricity, the German vice prime minister came out and called for: take less bath and work more.
People said pessimistically: Either starve to death or freeze to death.
However, just when everyone is in a state of turmoil over energy.
However, there is such a group of people who are ready to make some money from the State Grid pocket.
Now, you may just need to drive every day to get the state to contract you with electricity bills. What is used is a technology called V2G (Vehicle-to-grid).
rumor in the world that this is a "killer" technology for tram to snipe traditional fuel vehicles.
Many friends may not have heard of this term. In fact, this technology is to put it bluntly: two-way charging.
, but it means that electric car charges the power grid.
That is, turn our electric car into a four-legged power bank. Through a special two-way charging pile, the electricity stored in our battery is transferred to the State Grid in reverse.
And what we make in the middle is a "take advantage of the situation" price difference.
We charge the car when the electricity price is cheap. Then, when the country's electricity is in short supply, the electricity in the car is sold to the country in reverse according to the peak electricity price.
State Grid V2G Service ▼
bad reviews Let's make up for everyone here to see how this business is doing.
Let’s take Model X as an example. Its battery capacity of the battery life version is 100KWh.
Assuming that the peak and valley electricity price in the figure below is calculated, then the average price difference can reach 0.7 yuan/kwh.
That is to say, if the car battery capacity is used to charge and discharge, we can earn 70 yuan per order without considering the loss. is charged every day in a month, which is 2100.
And this is just the income brought by the difference itself.
As a brand new project, the V2G subsidy provided by car companies should also be very strong.
For example, some time ago, Great Wall Motor took the lead in building a V2G operation demonstration site. According to them, car owners can rely on subsidies at most every month, and happily earns 2,000 .
Great Wall Motor GEF6 V2G Demonstration Project ▼
However, there must be some bad friends who will think this is unreliable.
Because the charging pile used in V2G is different from the one we often use.
Although home charging piles are not uncommon now, V2G uses the modified bidirectional charging piles . Currently, the two-way piles that can be seen in China are basically all public.
In other words, we can definitely make money by selling electricity. But the trouble is that every time we want to sell some electricity, we have to look for piles all over the floor.
Don't worry, it's time for car manufacturers to make their debut.
In addition to renovating a special two-way charging pile, the car manufacturer also has to make a very important thing - energy storage station.
is like a storage locker in a supermarket, which can help us save the electricity first.After
, as long as we use the online APP to monitor the fluctuations in electricity bills, we can complete the one-click sale at home.
Moreover, car manufacturers will be very happy to help us do this. Because for them, it is very cheap to build this thing.
my country has very strict requirements for power batteries, which leads to a very high battery elimination rate. Some institutions have predicted that 420,000 tons of retired power batteries will be waiting to be processed in 2022.
These car manufacturers have a headache about the "unqualified" battery .
There are a large number of scrap batteries every day, which are transported to solar or wind power plants and are recycled for energy storage.
Now the V2G energy storage station allows batteries to complete laid-off and re-employed.
car manufacturers can not only deal with a large number of unqualified batteries, but can even ask car owners for power storage fees in reverse.
Moreover, behind V2G, the most anxious thing is probably our national power grid.
As early as 2018, the country was promoting this thing before the tram was running smoothly. In September this year, the Energy Bureau came out and clicked.
is considered to be the leader in V2G mode.
increase efforts to build new power infrastructure. Promote the integrated development of new energy vehicles and the power system, and encourage the implementation of technical application demonstrations such as orderly charging and electric vehicles sending power to the power grid (V2G).
As for why the country is also in a hurry to do this, everyone should be able to feel it when watching various power news during this period.
electric is really impossible to store, so you can only use it first.
Both my country has a large number of backup power plants with peak loads, and most of the time they are idle. only when power is short of power, these power plants will operate.
However, these four legs run around, but the cost is 0. How much electricity can be dispatched if these big guys are used?
According to the calculations of the Tsinghua University New Energy Power System Research Group, the average power of each vehicle is greater than 65 kilowatt-hours. Then the energy storage capacity of 300 million vehicles can exceed 20 billion kilowatt-hours, and is basically the same as the electricity consumed by China every day.
. As of October 2022, the number of new energy vehicles in China has reached 1149 , which can dispatch approximately 300 million kWh of electricity to 7.4 html.
So, the country and car manufacturers actually want car owners to earn their money.
In the United States, Japan, and Europe, this model has been tried very early.
In 2009, the United States allocated 30 million to Ford, asking them to cooperate with the power grid to develop V2G. However, although Ford is not doing well. However, there was a top student among these car companies, that is , Tesla .
I have to admit that Musk does have something on his body.
Before others could build two-way charging piles, he began to plan the next step.
Tesla made something called Powerpack as early as 2012. And this thing is the energy storage station we mentioned earlier.
Powerpack is specially provided for enterprises to store electricity. Afterwards, Tesla launched a Megapack with a larger capacity, trying to store electricity for the government.
Now, Tesla has directly brought the energy storage station to someone else's home.
Last year, Tesla launched a project called Powerwall , which is specifically aimed at home energy storage.
This huge household battery will automatically charge itself during the peak period of electricity consumption. When the electricity consumption is peak, it can reverse power transmission to homes and trams.
If we think about it carefully, we will find that this is a virtual power plant?
Basically, every kilowatt-hour of electricity stored in Powerwall can earn $2. With this thing, car owners can lie down and pull out the power grid.
Later, Europe and Japan also began to promote this small household energy storage station.
In the UK, a guy said that he made 900 pounds in a year.
It specializes in charging when the electricity bill is 15 p/kwh, and then when the electricity consumption is peak at night, it will resell it to the power grid at a premium of 31 p/kwh.
and, for the convenience of trading with the power grid. Tesla has also made a platform that supports online energy currency trading Autobidder, and makes every transaction clearer.
Although my country's V2G layout is a little slower than that in Europe and the United States, it has actually been silently implemented for a long time.
In 2019, State Grid cooperated with Great Wall WM Motor. Hold hands and reached a front to build V2G together.
Even in the Zhongzai Building Demonstration Zone in Beijing, some people are already making money with V2G.
6 months, more than 90 car owners earned 15,025 yuan.
But as the saying goes, there is no free lunch in the world.
Although this V2G plan looks like a three-party benefit. Under ideal conditions, you can do your best, I am good, and he is good.
However, the problem lies in the four words " ideal state ". .
The only one who was injured in this perfect plan is - Our electric car .
First of all, we need to know that the life of the battery is determined by the number of cycles of charge and discharge. As long as the battery is fully charged and discharged, there will definitely be aging loss in life.
So, we frequently charge and discharge to make the difference, but in fact we make money by taking the life of the battery.
battery is likely to make money if you have life, but you have lost your life. The few money you earn from selling electricity may not be enough to replace your own battery.
Secondly, if the two-way charging piles and energy storage stations are not spread out in large quantities, then V2G will be meaningless.
V2G is a project that has high fireworks and fire. Without enough people participating, the fire cannot be burned.
For the State Grid, if there are not enough new energy vehicles involved, it is not enough. In the face of huge electricity demand, V2G is basically a small fuss.
And for us car owners, the biggest temptation of this business is that we can make money while lying down.
But even now, in many second- and third-tier cities, ordinary charging piles are not built properly. There are even about 2,000 towns, which do not have any charging facilities at all.
That's not to mention laying a brand new two-way charging pile, or building an energy storage station at home.
In fact, for us car owners. V2G is just used occasionally to get some blood. It will definitely not work if you really expect it to make money.
V2G The greater significance lies in improving the security of the State Grid.
However, we may still have a long way to go before the day V2G comes in handy.
