Tomorrow's Sun City

In the near future, Germany will have a city that uses solar energy as its energy source.

In the city, there are blue solar-powered converters, and the roof of the building shines blue with the sun shining. There is no smoke here, there is no oil heating device, the houses are in a variety of shapes, some are pyramids like colors, and some are like growing sunflowers. These houses absorb solar energy through huge glass and, like a tile fireplace, slowly release heat later.

A heat exchanger is installed inside and outside the room, and an accumulator is installed in the basement. The so-called exchange is to transfer heat from a hot object to a cold object. Solar energy heats the solar energy receiver, and heat is received or converted through a heat exchanger for storage.

In the city, solar energy is used almost everywhere where energy is needed. People cook using solar stoves, a solar stove with an attack rate of about 1100 watts can cook rice in a few minutes; people go out to drive solar cars, or take solar cars, solar ships, although they are not fast, but there is no noise. As for the watches worn by people, the computers used, the traffic lights on the roads, the safety lights on the construction sites, the billboards in the shops, the neon lights, all using solar energy, people no longer need to worry about changing batteries.

Sun City no longer has exhaust gas, and solar cars consume clean solar energy or solar energy. These cars are equipped with batteries. When they are exhausted, they are like a regular car and go to the "gas station" to refuel. However, these "gas stations" do not have the usual type of oil tanks, instead of one power outlet, the driver only needs to plug the battery cable plug into these sockets to charge. There are no more smog and strange smells in the city.

The first day: Chen Rongrong