Solar Photovoltaic Application 2

张毅2018

Solar Photovoltaic Application 2 [Copy link]

 

This content was originally created by EEWORLD forum netizen Zhang Yi 2018. If you need to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source One of the applications of solar photovoltaics The traffic lights used in urban traffic have all adopted LED lights, achieving a perfect combination of ultra-high brightness and ultra-low energy consumption. The Longquanyi District in Chengdu where I live often experiences power outages, and the traffic lights will also go out. Therefore, the traffic light solution using solar energy came into being. When designing, the local meteorological conditions should be considered first. The number of sunny days, cloudy days, and rainy days in a month should be counted to make sure you have a good idea. Secondly, the power consumption of the traffic lights and the number of power outages in a month must also be counted. The designer should also have a good idea of how long the backup power supply can last. The picture below is a real shot of a traffic light 1000 meters away The actual marketLED lights can already produce various patterns

qwqwqw2088

It is normal that LED can be made into various patterns. What do you want to express? Solar street lights have been around for a long time.

张毅2018

qwqwqw2088 Published on 2019-1-17 08:48 It is normal that LED can be made into various patterns. What do you want to express? Solar street lights have been around for a long time.

It is normal that LED can be made into various patterns. Solar street lights have been around for a long time. However, the solar street lights on the market still need to be powered by the power grid. Is this justified? The real solar street lights are street lights that do not need to be powered by the power grid and are completely powered by solar energy.

qwqwqw2088

张毅2018 发表于2019-1-18 19:52 It is normal that LED can be made into various patterns. Solar street lights have been around for a long time, but commercially available solar street lights still need to be powered by the power grid. Is this justified? The real thing is too...

"Real solar street lights do not need to be powered by the power grid and are completely powered by solar energy." I suggest that you drive or ride an electric bike tomorrow and start to investigate the vicinity of your residence, and investigate several more counties to see the solar street lights used in our country's new rural areas, or where there are solar street lights, and find out whether all solar street lights need to be connected to the Internet.

qwqwqw2088

Then go to the local organization, which is usually provincial, such as the lighting association of a certain province, and ask the president for more information.

张毅2018

qwqwqw2088 Published on 2019-1-18 20:11 Then go to the local organization, which is usually at the provincial level, and find the president of the Lighting Association of a certain province to find out more.

It does not need to be the same as the products sold on the market, your understanding of the product will be recognized by consumers.

张毅2018

qwqwqw2088 Published on 2019-1-18 20:11 Then go to the local organization, which is usually provincial, and find the president of the lighting association of a certain province to learn more about it

Find an organization? ? This person doesn't look like someone who makes finished products, but more like...

qwqwqw2088

张毅2018 发表于2019-1-19 09:32 Looking for an organization? ? This person doesn’t look like a finished product manufacturer, but more like...

“But commercially available solar street lights still need to be powered by the grid. Does this make sense? A true solar street light is one that does not require a grid power supply and is completely powered by solar energy.” There is no need to say too much about this statement directed at the original poster.

qwqwqw2088

qwqwqw2088 posted on 2019-1-19 10:49 "But the solar street lights on the market still need to be powered by the power grid. Is this justified? The real solar street lights do not need to be powered by the power grid, but rely entirely on solar energy...

Thoroughly investigate the reality of the product, actually go around and take a good look,, and then go to the industry supervisory association to do another investigation,,, is it as certain as the original poster said.

张毅2018

qwqwqw2088 posted on 2019-1-19 10:51 Thoroughly investigate the product reality and actually go around and take a good look. Then go to the industry supervisory association to investigate whether it is what the OP said...

OK, after the investigation, there is no need to go to the industry supervisory association, right? Solar street lights cannot be called solar street lights just because they have a solar cell installed. They must be street lights that are powered by solar cells.

PowerAnts

A god stick

张毅2018

PowerAnts posted on 2019-2-15 22:48 What a charlatan

Why do you say that? Is there anything I didn’t explain? Or is it that China cannot achieve this at present?

leifengfirst

Zhang Yi 2018 Posted on 2019-2-16 19:23 Why do you say that? Is there anything I didn’t explain? Or is it that China cannot achieve it at present?

You need to work hard. If the solar energy conversion rate can exceed 50%, there will be a chance to achieve the function you want, or the battery energy density can be increased by 5-10 times.

张毅2018

leifengfirst posted on 2019-2-18 10:05 You need to work hard. If the solar energy conversion rate can exceed 50%, you will have a chance to achieve the function you want, or the battery energy density can be increased by 5-10 times

No way?

qwqwqw2088

It is a taboo to develop products in isolation

zhuyebb

Yes, it's great!

张毅2018

qwqwqw2088 Published on 2019-2-18 19:47 It is a taboo to make products in isolation

Yes, I go online every day to learn about the latest technological developments in electric vehicles, including, of course, the development of electronic technology.

张毅2018

zhuyebb posted on 2019-2-18 21:28 Not bad, it's really great!

There will be better ones

bigbat

Solar street lights are a "pitfall". This project is also a highly polluting and uneconomical project. There are two main problems. 1. Solar energy is a relatively expensive thing. The high cost itself is one aspect. This thing needs to be matched with batteries. The batteries have to be replaced in about three years, and the batteries are basically scrapped. So the cost is extremely high. 2. Because of the existence of batteries, it is also a highly polluting project and is not environmentally friendly. A few years ago, various places followed suit, but the result was a waste of money and labor!!!

张毅2018

bigbat published on 2019-2-28 15:12 Solar street lights are a "pitfall". This project is also a project that is seriously polluting and uneconomical. There are two main problems. 1. Solar energy is a relatively costly...

Without the good idea of saving the country and the people, how can we design a good energy-saving and environmentally friendly product? A project that is seriously polluting and uneconomical? This is because the designer is not good. The lead-acid battery is used for energy storage, which has a short life and pollutes the environment. Now the price of solar cells has dropped, and ordinary people can afford it. You can Baidu the price. This is public.