Chapter 271 Thermal Power Generation Unit

The defense of the city is no longer what it used to be, and the inner and outer cities are densely packed. Coupled with the full exertion of thousands of elf archers, Jia Zhengjin also used the newly acquired skills to swallow the potion desperately and use explosive arrows to swipe wildly.

There are also kobold crossbowmen and young new crossbowmen led by Amber joining the battle.

The fierce battle lasted until around 0 o'clock in the middle of the night, and finally won the final victory after leaving piles of horrible giant insect corpses in the inner and outer cities!

Although a few giant insects appeared occasionally, the number was not enough to break through the defense of the Arrow Tower and threaten the residents of the city!

Everyone involved in this battle was almost exhausted. But because it was a long-distance battle, there were no casualties except for one unlucky town guard who was injured in the foot by the corpse of a giant insect that fell from the sky. This can be regarded as the greatest fortune in misfortune!

Jia Zhengjin's hands were too tired to lift them up, he couldn't remember how many arrows he had shot!

All I know is that tonight's battle allowed him to directly rise from level 12 to level 13!

You must know that upgrading from level 12 to level 13 requires more than 200,000 experience points. Even if I went to the city of Tansandia before and hunted some monsters after I came back. But how much experience is that? In fact, almost all of the 200,000 levels of experience were contributed by this wave of terrifying bug swarms!

The only regret is that there is no boss. Moreover, apart from being able to decompose into insect shells, insect wings, and a large amount of raw meat, the corpses of bugs can't find any spoils.

The newly obtained skill points are added to the power system after careful consideration.

After learning the knowledge of the power system, you can unlock the production of the most basic thermal power generating set. And by upgrading this skill, you can unlock other generators such as hydropower, wind power, solar power, and even nuclear power.

Although Jia Zhengjin already had a magic core battery, after all, the magic core was obtained by hunting monsters. Jia Zhengjin has a deep understanding of how difficult it is to find an electric monster.

Furthermore, the magic core battery has capacity. The power that can be maintained is also quite limited, and it will be gone when it is exhausted! It's a one-off thing and not that cost-effective! It’s okay to use it in an emergency, such as generator maintenance, and replace it when there is no power. Or some equipment that requires electricity and cannot carry a generator set can also be driven by a magic core battery. For example, the giant machine combat armor that may be produced in the later period.

However, it is quite troublesome to make a thermal power generation unit, because the whole unit needs five important components: power system, control system, noise reduction system, shock absorption system, and exhaust system.

And these five systems,

It is composed of many different parts. These parts, in turn, come in smaller combinations!

Even if there is a system, it is quite a troublesome production process.

Fortunately, Jia Zhengjin did not lack materials, nor did he lack the time to make them. As long as you work hard in the factory, you can make it soon.

But there is a problem, the operation of the power system, driving the city's lighting system. And the lighting system can easily attract horrible insect swarms!

Tonight is only 50 street lamps, and it directly attracts a swarm of insects that is enough to make Jia Zhengjin rise to a level!

A bug has about 10 to 20 experience points. In other words, about 20,000 to 30,000 giant insects were killed tonight!

Upgrades are coming soon! But fortunately, this wave is full of bugs with low attack and defense power. If it is a more powerful insect swarm, I am afraid that the city will suffer.

But after finally getting the magic nuclear battery and generator set, can't they be used for lighting at night?

Jia Zhengjin thought about it, and suddenly had an idea.

Insects are so troublesome, it would be dangerous to enter the city, so why not just keep them from entering?

As for the method, Jia Zhengjin thought of one.

Anyway, don't there be arrow towers in the inner and outer cities? And there will definitely be more and more buildings in the future, until every corner of the inner and outer cities is erected with arrow towers.

And the most annoying thing now is when the bug swarm comes, because the number is too terrifying, so the arrow tower can't completely block all their travel routes. There must be a large number of insects that will be put into the city, and the shooter will need to participate in the battle to clear them.

What if a protective net is built on the periphery and over the sky? It can not only intercept insects, but also allow the arrow tower to attack insects through the gap! And you can electrify the protective net, turn it into a power grid, and make the bugs die faster!

Under normal circumstances, this kind of concept is difficult to realize, and it will inevitably require very terrifying human resources and sophisticated planning.

However, Jia Zhengjin, who has a game system, said that it doesn't seem too difficult, right?

Iron ore can be used to smelt barbed wire in the furnace, and there is also a strong iron fence. He can completely surround the outer city wall with barbed wire, and then build it above the city to form a super-large roof of barbed wire. Below it is surrounded by a solid iron fence to wrap the whole city.

After the electricity is turned on, except for the four city gates that can be freely entered and exited, all the upper and lower gates are blocked!

Electric grids and electric fences can isolate any flying troops outside, making them unable to enter the city! However, there is also a disadvantage, that is, the flying troops in the own city cannot enter and leave at will. If you want to bring monsters, fake dragons, etc. into the city, you can only pass through the four huge gates.

Of course, it's totally worth doing if you can make the city safe!

If you really want to pull up the protective net, the grid and the defense of the arrow tower are enough to isolate any air attack. It can also cause some trouble to the enemy who is besieging the city. Although this is part of the trap, killing insects does not add experience to oneself, but safety is much more important than experience! At that time, all I have to do is to do some repairs on the damaged iron fence and barbed wire! How simple? Just take a look with a hammer and it's ok!

Thinking of doing it, Jia Zhengjin took advantage of everyone going back to rest and sleep, and worked hard all night in the factory. First, he made all the complicated parts for making the generator set, and then brought them to the tool table to start assembly.

As for the furnace, it began to smelt and make barbed wire.

When he successfully assembled a complete thermal power generation unit, there were already quite a lot of barbed wire in the furnace. He immediately took them out and hurried out to install them.

There is no way to make the iron fence for the time being, because the required iron ore is too much, and the resources cannot keep up. We need to wait for news from the mine!

He first built four towering pillars in four directions of the inner city. The pillars are made of wood, but they are quite solid. Then, using the pillars as supports, barbed wire is installed flat in all directions, creating a barbed wire roof over the city.

Of course, I borrowed Buddy's flying monster Kuru for the whole process, otherwise, who could build it at such a high place?