Do you have any novels about alien technology that you recommend? The protagonist uses machines to convert dark matter energy into electricity to save on electricity bills?

He had forgotten that the protagonist had come back from an alien planet or how he had obtained technology. The protagonist had opened a small workshop in the suburbs and processed the corn stalks into a super fiber or reinforced film. In order to save on electricity, the machine used dark matter energy to process the corn stalks.
After that, it seemed that alien ruins were found at the bottom of the sea (?)
It was not a recent novel.

Answer 1

" Black Technology Research and Development System " is a sci-fi novel written by the author, Scholar Doctor. The general plot of this novel is:

Our laboratory specializes in refurbishing nuclear warheads, lighting up nuclear fuel rods, cutting satellite solar panels, recycling second-hand planets, and sending you to space junk. In addition, he was selling wall-e at a reasonable price. Virtual currency was also supported. For details, please contact 110119. Group number 216180919, come and buy it!
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Humanoid Engine was a sci-fi super-tech novel written by the author. The general plot of the novel was:

About the development after obtaining the superpowers from aliens...
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" I'm Building a Power Plant in the Other World " was a fantasy-alternative fantasy novel written by the author, The Scenery. The general plot of this novel was:

There was no electricity in the other world for the cultivation of lightning abilities? The Lightning Element was the most useless ability? Then he would generate electricity himself! Potato primary batteries, zinc-copper diluted sulfuric acid primary batteries, small hydraulic generators…until a large hydraulic power station across the river was built! Shelley relied on science and technology to cultivate. He used experiments and scientific reasoning to create a system of knowledge and mysteries in the Otherworld. Everything in the world was his research material!
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Super Electricity was an urban supernatural novel written by the author, Flame Afraid of the Cold. The general plot of the novel was:

Student Zhong Hao had accidentally obtained a super technological product from an alien star field--the Spiritual Energy Core.
The Psionic Core had the special ability to strengthen the body's cells. There were more than two hundred different types of cells in the human body. For example, the strengthening of the brain cells could make the brain's thinking faster and sharper, enhance vision, hearing, and memory. The strengthening of the muscle cells could give the body great strength, speed, and explosive power.
The spiritual core also had the ability to absorb and control electricity, whether it was household electricity, high-voltage electricity, or lightning.
Electric energy had endless uses. Zhong Hao not only created the electric energy acupuncture technique through practice, but also used the high temperature characteristic of electric energy to establish a unique natural chemical enterprise in the world.
At the same time, Zhong Hao also grasped the supreme truth of this world-don't pretend to be stupid. You'd better not pretend to be stupid in front of me. If you pretend to be stupid, you'll be struck by lightning.
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" I can create the sun. You're accusing me of stealing electricity?" This book was an urban novel written by Hextech Lv.9. The general plot of the novel was:

Chen Yu, who was bound to the Elemental God System, was suspected of stealing electricity by the small online celebrity streamer next door. Under the hype. Chen Yu was mercilessly attacked by the entire Internet. However, the final inspection results showed that all the equipment circuits were normal. In order to find out why Chen Yu's brightly lit room didn't consume any electricity…The relevant technical personnel entered Chen Yu's room under the circumstances of a live broadcast. After that. " What?" Everyone was stunned." Quick! Inform Elder Qi and the others to come over and study it!" "Why do I feel like this is Iron Man's ark reactor? Cold nuclear fusion! This is the primary model of cold nuclear fusion!" " Oh my god, such a high-level energy device. It turns out that it can also boil water to generate electricity!" Just as the world was in shock. Yet, Chen Yu was tutoring a middle school girl in science…
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" Black Technology Production Line " was a sci-fi novel written by the author, Yuan Ruoling. The general plot of the novel was:

He traveled back to a crazy era where humans were at war with alien civilizations. He inherited a black technology production line and began to build an assault empire. Weapon? Starship? Mecha? No, no, no. The first step to establishing the Assault Empire was naturally to head towards the garbage dump! Wouldn't the cute and cheap wall-e robots smell good? Only with capital and reputation could big customers place orders! Let the world see my terrifying production ability! What, the aliens used the latest destructive weapon? It's fine, I'll immediately get my production line to produce 100 assault Gundam! You said that the giant genetic beast invaded the port? It's fine, I have a dangerous Wanderer that specializes in fighting monsters in the sea! One wasn't enough? It's okay, I can produce a series...
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" I Learn Black Technology in the Post-apocalyptic World Without Electricity " was a sci-fi novel written by the author, Solid State Disk. The general plot of this novel was:

The Yellow Springs could freely enter a world a hundred years in the future. Faced with countless technologies that could be obtained, he did not choose to make money from network technology. Instead, he buried himself in building the industrial foundation of the country. 5mn Photolocation Machine, Industrial Lathe Master Machine. Special metal. These were just beginner gift bags to make up for the difference in basic technology. Have you ever seen a detector that can detect all the health conditions of the human body? Have you ever seen a fast sleep aid that can improve sleep and is completely harmless? With the arrival of the national team, the entire society changed faster and faster. Quantum communication broke the monopoly of the world's network, launch vehicles realized the lunar base, and red flags were planted on the moon and Mars. The controllable nuclear fusion technology could solve the energy crisis. Many years later, Hades set sail on an interstellar warship on Mars. The journey of our Chinese people is the sea of stars! Ps: System, artificial intelligence, nuclear fusion, aircraft carrier renovation, lunar base, Mars immigrants, interstellar warships.
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Movie Technology was an urban supernatural novel written by the author, Mechanical Pocket Watch. The general plot of this novel was:

One side was heaven, and the other was hell.
Technology was a double-edged sword. If it was used well, it would be immortal, but if it was not used well, it would not even leave a corpse.
Ye Heng obtained the ability to extract items from the movie. From then on, the trajectory of his life changed.
All kinds of black technology emerged one after another, and human civilization had undergone earth-shaking changes because of his technology.
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The book " Super Technology Begins with the wireless charging system " was an urban novel written by author Z70707. The general plot of the novel was:

Ever since Liu Tianlin got the wireless charging system, he had been running faster and faster on this road. Foldable refrigerator, water condensation, green light power generation, dream fiber,... Just like Doraemon, unbelievable products kept popping up one by one.
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" The Science of Electromagnetism from Pirates " was a light novel written by Nan Yu. The general plot of the novel was:

This was the story of a transmigrator named Mo Fei who had become a spy of the Don Quijote Family from the Pirate World. He used electricity to treat himself, treat the entire family, and teach them the Five Lectures, Four Beauties, Harmony, and Freedom. Then, he treated the wireless multiverse of multiple parallel worlds. A few years later, Mo Fei began to take on high-end businesses. [Specializing in the maintenance of various unstable phenomena in the electromagnetic field of the universe, treating pulsar hyperactivity, and solving the continuous paralysis of electromagnetic stars. Waxing the white hole, polishing the black hole, and stabilizing the wormhole. He would collect second-hand white, black, red, yellow, and blue dwarf stars. He would sell them in large quantities at a good price, and he could even exchange them for stainless steel washbasins. The gamma-ray burst would regularly clean up all kinds of evil gods, save the world's sanity value, and solve all kinds of hidden dangers that could destroy the world. It would not cost money if it was not cleaned up! You can try it first before you buy it. Contact Hotline: XXXXX.] [Temporarily set: Pirate, Ghost Extinguisher, Naruto, Super Electromagnetic Cannon…]