Solar cells play new tricks

Recently, the American addiction technology (Engadget) website reported several innovative solar cells, some of them are like flowers, and their values ​​are super high; some are as soft as yoga players, and more importantly, they are all powerful. Super strong.

Capture sunlight at all angles

Most of the solar panels are flat. Although the solar panels can be rotated to the angle of the sun's moving path, the design still has great limitations, especially inefficiency.

Last year, V3 Solar's Spin Cell was first released, putting solar panels on a unique tapered bracket that allowed it to absorb solar energy at full angle. According to the company, according to third-party agency verification, the current model produces more than 20 times the power generated by static flat panel solar panels, and is extremely durable because spin behavior prevents the spin battery from overheating – this is traditional solar energy. A big problem facing the battery. In addition, V3 occupies very little space compared to traditional solar panels.

There is no such thing. In 2012, Japan's Kyosemi developed the Sphelar spherical solar cell, which did not use the traditional flat design, but adopted a more efficient spherical design that looks like a disco ball. The spherical design has many advantages: it does not need to move, it can fully absorb and utilize the sun's rays, and it is exposed to the sun to the maximum. Therefore, no complicated solar tracking system is needed; in addition, since this battery is not a flat design, the surface area is With relatively few requirements, people can place more solar cells in a smaller space.

High value, soft body and economical

Recently, flexible materials have shinen in the tech world, and in addition to the screen, it has become an integral part of solar panels. The CIGS (Copper Indium Gallium Selenide) flexible solar cell from Sunflare, a startup based in Los Angeles, is a typical example. The battery body is soft and can be rolled up like a wallpaper and attached to any surface. Its shape is also very slim, "weight" is 65% lighter than traditional solar cells, and the efficiency is 10% higher than traditional solar cells. This panel will be the perfect solution for rural areas and portable projects. In addition, the price of such solar cells is relatively close to the people, Sunflare estimates that the cost of generating such a coiled solar cell is only 1.07 US dollars / watt.

At the same time, in March of this year, Sweden's Airlight Energy and IBM also announced that they will start building affordable sunflower-shaped solar buildings in remote areas in 2017. The sunflower panel is curved overall, with six solar cells mounted behind the panel, while the front mirror array increases the daylight intensity by 2,000 times and converts more than 80% of the solar energy collected from the sun into electricity. It is reported that on a sunny day, the system can generate 12 kilowatts of electricity and 20 kilowatts of heat, enough to provide the normal electrical lights, air conditioners and refrigerators and other daily electrical appliances for several families in remote areas.

Produces more than 50 times the power of conventional batteries

On October 30 this year, a new product designed by Tesla and Solar City, the solar roof, was unveiled at Universal Studios Los Angeles. Tesla's integrated solar roof system consists of unique glass bricks embedded in efficient photovoltaic cells. At the press conference, Tesla CEO Elon Musk also showed the Tesla II generation of energy storage battery Powerwall 2.0, which is priced at $5,500 and has a capacity of 14 kWh. When solar rooftops and Powerwall batteries work together, they provide 100% renewable energy to the entire home.

Solar window technology company, a developer of transparent solar cell power generation coatings based in Maryland, said that the company's transparent solar cell technology produces more than 50 times more energy than traditional solar panels, making it a lot of recent solar energy. Innovation is self-defeating.

The “solar window” is actually a coating that can be applied to existing glass or plastic surfaces to generate electricity without affecting the landscape or obscuring sunlight. The inventor said that in view of the high energy conversion rate of the new system, it will recover the cost earlier than traditional solar panels - traditional solar cells may take 11 years, and the new system can recover costs within one year.

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