Cheap solar panels for walls and vehicles developed
Tokyo: (Web Desk) Japanese scientists have developed solar panels from perovskite metals that are 40 percent efficient in generating electricity from the sun.
Traditional solar panels made of crystalline silicon have an efficiency of between 15 and 30 percent, and the Japanese company Sekisui will soon be commercially producing these perovskite solar panels.
These solar panels are cheaper to manufacture than silicon panels, have a simpler manufacturing process, and generate more electricity in low-sunlight and rainy environments. Due to their flexibility, they can be mounted on walls, car roofs, and almost anywhere.
The Japanese government wants to generate 20,000 megawatts of electricity by installing these panels on the walls, roofs, grounds and vehicles of government buildings in the next five years.
China will soon become the world leader in the production of perovskite solar panels because their material, tin and lead, are found there in abundance. Chinese companies have also started producing solar panels with 39% efficiency by combining silicon and perovskite materials. These panels will bring a revolution in solar energy.
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Are you thinking of installing a wind turbine? Be sure to read this article before doing so.
After reading this article, it will be easier for you to decide whether to install a wind turbine or not. In this article, we will compare solar systems and wind turbines and see which one is better.
There are two types of wind turbines used in the world: vertical axis wind turbines and horizontal axis wind turbines. Horizontal axis wind turbines are the most widely used because they are more efficient.
5 Years ago I started using a wind turbine with a solar system to generate electricity at night, but it didn’t do much good. The maximum power of my wind turbine is 1.2 kW and the blade length is more than a meter. 1.2 kW is only achieved when the wind speed is 40 km/h.
If it has met my expectations, how much electricity does it generate and if not, why have I installed it yet? How many units do we get from a wind turbine depends on the area where it is installed and the wind speed, the type of buildings there and the height of the turbine. In my case, I only got an average of 200 to 300 watts, because it is installed in a populated area of Karachi and its height is 27 feet.
Wind turbines do not work well in populated areas because of the high turbulence caused by houses.
Turbines are very dangerous to birds.
Turbines are very noisy.
Vibration weakens the roof and walls of the house.
Expensive and difficult maintenance.
Turbine blades can break in high winds, and electrical brakes have to be applied in winds over 100 km/h.
Question: Where should a wind turbine be installed?
My According to experiments, wind turbines should be installed in open areas away from populated areas where the average wind speed is more than 30 km/h. They can be more effective in coastal areas of Pakistan and the Jhimpir region.
Comparison: Solar System vs. Wind Turbine
Installation: Installation of solar system is easy and cheap.
Price: One kilowatt solar system costs Rs. 60-70 thousand while the cost of wind turbine is Rs. 2-2.5 lakh.
Maintenance: Maintenance of solar panel is less while that of wind turbine is more.
Space: Wind turbine requires less space.
Electricity production: Solar panel provides energy for 6-8 hours a day while wind turbine can provide energy for 24 hours, if there is wind.
Advantages of wind turbines:
Sustainable Energy: Sustainable energy production in the presence of wind.
Green Energy: Environmentally friendly and green energy production.
Less space requirement: Wind turbines can be installed in less space.
Disadvantages of wind turbines:
Noise: Turbine noise has a negative impact on the environment.
Danger to birds: Blades are dangerous to birds.
High vibration: Harmful to buildings and homes