In the power distribution room of the shelter, the second uncle and several elders stood at the door, watching with anticipation as Chen Xin instructed two young men who knew how to be an electrician to connect the isotope temperature difference battery he removed from the car to the circuit of the shelter.

"Okay, as long as the red line and the blue line are connected, with the power generation and service life of this battery, it is enough to supply the entire shelter for more than ten years." Chen Xin watched as the two distant relatives connected the battery to the transformer of the distribution box of the shelter with electrical cables, and then nodded affirmatively to the second uncle.

"Does this really meet the electricity requirements? Just such a small battery? An elder obviously couldn't believe it, after all, the isotope temperature difference battery that Chen Xin brought was too inconspicuous.

Something the size of a large thermos bottle to provide electricity for such a large shelter is beyond the imagination of these elders who have only been cultivating the fields all their lives.

However, Chen Xin's father was much more accepting of this, and asked Chen Xin: "What is the output power of this battery?" How high is the voltage? ”

"With a voltage of 500V and an output power of 150KW, this is the battery for my car, and there is no big problem to meet the needs of the shelter." Facing his father's question, Chen Xin replied very seriously: "The voltage is a bit high, and it must be connected to the transformer to be used, and there is a certain degree of danger, so you need to pay special attention when using it." But it's not a big problem, and then I will do an upgrade and optimization of the circuit, adjust the access method, and there will be no problem. ”

Hearing Chen Xin say this, Chen Xin's father calculated it, and then said to his second uncle: "The power is a bit low, but it is enough to meet the heating requirements, that is, when other high-power electrical appliances are used, you should pay attention to it, there may be insufficient electricity." ”

"It's good to be able to turn on the heating, and there are no other high-power appliances in the village." When the second uncle heard Chen Xin's father say this, he immediately looked happy, and didn't care about what Chen Xin's father said about not being able to turn on more high-power electrical appliances.

However, Chen Xin also heard his father's words, thought about it for a while and said: "This is not a problem, this battery is made by myself, you can change one with a car battery, go back to the second uncle, you find the town to change two car batteries, I can change a battery pack, so there is no problem, and the production capacity of the greenhouse can also be expanded a little." ”

This is also something in Chen Xin's plan, like his own refuge, to increase the production capacity of the greenhouse and get more output, so as to exchange for more materials, forming a virtuous circle.

"Can greenhouses increase capacity?" The second uncle is particularly concerned about this, as the village chief for many years, and a farmer who has planted land all his life, he is the most sensitive to the output of crops.

Chen Xin nodded and replied affirmatively: "Yes, after the electricity comes up, the fill lights and heaters in the greenhouse can work for a longer time, so as to speed up the growth of crops and obtain higher yields." And I'm going to renovate the structure of the greenhouse so that you can have more food here. ”

Chen Xin's words immediately made the elders present happy, for them, being able to eat a variety of grains is more practical than anything else.

"That's a good feeling, it's a good thing to be able to eat more! I have food in my hand, and I don't panic in my heart. The second uncle's face was full of joy, which was completely different from the full face when Chen Xin came back and saw him for the first time.

Chen Xin didn't have any package tickets, just nodded and didn't say anything, he only had an idea about the renovation of the greenhouse, and how to get it had to be seen first.

As for now, the second uncle can't wait to turn on the heating equipment in the shelter.

As the heating equipment was turned on, the temperature in the shelter finally rose, and everyone had a smile on their faces.

And Chen Xin's side also received a system prompt for a long time:

"Help others improve their living conditions in shelters and get 5000 survival points"

"Help 4 people improve their living conditions and gain +50 survival points every day"

Of course, the population of the village is more than fifty people, but the increase in survival points that can be obtained by a single improvement in the living conditions of a shelter is only so much.

For Chen Xin now, these gains are gratifying, but they don't particularly care about him, and more importantly, this way can bring him income.

Thinking that he provided isotope temperature difference batteries to the country, Chen Xin couldn't help but look forward to how many survival points he could bring to himself if the country promoted this technology.

Even if a shelter is only fifty points, this is an astronomical amount of income with the large base of so many shelters in the country.

Now the only thing that worries Chen Xin is whether the isotope temperature difference battery produced by others under his influence can be recognized by the system, so as to bring him a survival point.

Chen Xin is not sure about this problem, but the problem is not big, even if the isotope temperature difference battery produced by others is not recognized by the system, he can produce it himself and sell it to others.

As long as the country begins to promote this kind of thing that can be called just needed, it will inevitably become a hard currency, and there will be no worries about sales at all, and the impact that can be caused to Chen Xin is nothing more than the question of how many survival points are in the final harvest.

And with the more products that Chen Xin can provide, he will be able to harvest more survival points, after all, although the harvest of survival points can only be harvested once, there are too many places that can be improved in a shelter, and he can completely cut one stubble after another like cutting leeks.

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The greenhouse in this refuge in the village is very different from the old greenhouse, although it is also a greenhouse, and the area here is significantly larger.

Moreover, Chen Xin could see that this greenhouse should have been rebuilt after adding a cover to the original farmland, and it was not like he used to transport the soil into the shelter from the outside to use it as cultivated land.

However, even so, the area of cultivated land is limited, according to the introduction of the second uncle, the cultivated area here is only about one and a half acres, a total of 900 square meters.

The 900 square meters of land resemble a huge nine-square grid, with four thick support columns in the center of the greenhouse, and twelve other supporting columns supporting the top beams along the wall.

900 square meters of farmland sounds not small, and the output is okay, but considering that there are more than 100 people in the village, this output is not much, after all, this planting greenhouse is not like Chen Xin's own, which can be turned on 24 hours a day with fill lights and heaters.

A greenhouse with only one layer of soil is not like the upgraded multi-layer planting greenhouse on Chen Xin's side, which can achieve three-dimensional planting and obtain greater yield.

The types of crops grown in the field are also relatively simple, only cabbage, radish and a large area of leaf crops that Chen Xin does not recognize.

"Second uncle, what is this?" Chen Xin walked to the edge of the leaf crop, looked at the vines and leaves that were almost growing close to the ground, and asked the second uncle curiously.

"This is a sweet potato, it's been planted for almost four months, and it's almost ready to be harvested." At the mention of these crops, the second uncle's face was also full of pride and satisfaction, just like he said, he had food in his hands and did not panic in his heart.

For the farmers of Yanguo, these crops with a promising harvest are the biggest source of happiness.

When Chen Xin heard his second uncle say that this is a sweet potato, he immediately showed a surprised expression: "Is this a sweet potato?" ”

"Huh? Ah Xin, haven't you ever seen sweet potatoes? The second uncle was a little puzzled, sweet potatoes should be very common, and it should be impossible for Chen Xin not to have seen them.

Chen Xin shook his head, reached out and touched the vines and leaves of these sweet potatoes and said, "Of course I've seen sweet potatoes, but I really haven't seen the sweet potato vines and sweet potato leaves growing in the ground." ”

Hearing Chen Xin say this, the second uncle also nodded understandingly, it is true that many people have eaten sweet potatoes, but sweet potato vines and sweet potato leaves are indeed not known to everyone.

"You have a greenhouse of your own, right? Would I like to bring you a little sweet potato, this kind of thing is very easy to grow, a sweet potato can be used as a seed when chopped. The second uncle thought that Chen Xin also had a greenhouse, and immediately proposed to him.

When Chen Xin heard the second uncle say this, he didn't shirk it, stood up and said, "Then it's troublesome for the second uncle, although I have a lot of seeds, I really don't have sweet potatoes." ”

"It's a small thing, but what staple food do you grow there? You can't just grow vegetables, and you can't fill your stomach just by eating vegetables. The second uncle expressed concern about Chen Xin, obviously in his opinion, the staple grain had to be planted anyway.

Chen Xin didn't have any problem with this, and replied with a smile: "I grow upland rice, which is more than enough for me to eat by myself, plus there are a lot of vegetables, which can be exchanged for a lot of food." After all, I'm a city there, and it's much easier to get food than at home. ”

When the second uncle heard Chen Xin say this, he nodded, and asked him instead: "Ah Xin, I'm relieved if you say that, then you can see what can be renovated in this greenhouse, it is a good thing to increase the output more, so that the people in the village can also eat a little more." ”

This is also what the second uncle is most concerned about and looking forward to, most of the greenhouses in front of him are planted with sweet potatoes, and the growth of sweet potatoes takes at least five to seven months, even if it is a short-growing sweet potato, it takes four months, and the people in the village can't talk about how full they are before harvesting.

"I'll take a look first, I just have an idea of how to transform, and I still have to look at it before I talk about it." Chen Xin didn't pack the ticket, and asked the second uncle about his requirements: "Second uncle, what do you think the greenhouse should do?" My idea was to add a layer of hydroponic planting, so that we could grow a lot of crops. ”

Hearing Chen Xin say this, the second uncle couldn't help but be a little worried: "Hydroponic planting? Isn't this thing easy to do? I've heard of this technique, but no one in the village has done it! ”

"This technique is not complicated, second uncle, listen to me tell you......" Chen Xin laughed and introduced the hydroponic planting technology to the second uncle.