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  • Product Certificates
    Solar
0 Suppliers

Zhejiang Kinglex Solar Technology Co.,Ltd. is a modern high-tech manufacturing company complex aggregated with R&D, production and sales services. The company is located in the beautiful seashore city一Ningbo. The company mainly engaged in Monocrystalline solar cells and the R&D,production,sales and services of its modules. We devotes to building an excellent photovoltaic enterprise with "Leading Technology and Significant [...]

  • Rapid Shutdowns
  • China
  • China

Jiangxi Renjiang Technology Co.,ltd was established in 1998, an member of Renjiang bloc. It's one of the earliest enterprises in domestic specializing in photovoltaic industry. Our company is located in the beautiful Ceramic Industrial Park, Pingixang City with production reaserch and development center for over 50000 square meter. Since its establishment the production and research, development and sale of Solar street light, Solar cell panel, [...]

  • Rapid Shutdowns
  • China
  • China

Since the establishment of Jiangsu Sunnyside Photoelectric Technology Co., LTD.We seek cooperation with global vision and converge elites of all circles continually.We uphold “From Scientific Research and Sevice Scientific Research” business philosophy, concentrate on research of Green Materilals,the promotion of MC Nylon Products and Green Energy Technology. Main business of our company: Various types of polymer drains, rainwater storage [...]

  • Rapid Shutdowns
  • China
  • China

Solar Bright S.L. is a Spanish company, based in Albacete, a pioneer location in the production of renewable energy, with an extremely experienced team in this sector. We are a High-tech and innovating company, which is fully committed to research, and development (R+D+i), aimed at increasing solar efficiency in solar farms. Solar Bright as a service company, manufactures some of the equipment used, providing innovative solutions at competitive [...]

  • Rapid Shutdowns
  • China
  • China

Guangzhou Demuda Optoelectronics Technology Co.,LTD,established in 2003.It is a high-tech company which is specialized in solar power inverter industry.Our manufacturing base is located in Guangzhou,China.Our factory building is over 10,000 square meters and our products cover many kinds of solar equipments, such as solar power inverters,car inverters,solar controllers,solar chargers, solar LED lights,etc.   Demuda has always adhered to [...]

  • Rapid Shutdowns
  • China
  • China

In 1986, Hong Kong Lida Enterprise, as a pioneer in the field of frequency conversion control in China, introduced Japan Sanken general frequency converter and UPS products into China, becoming a pioneer in the general frequency converter industry, and was honored to participate in the opening of the domestic frequency conversion speed regulation era. In 1999, Sanken Lida Electric (Jiangyin) Co., Ltd. was established. In 2003, Japan Sanken [...]

  • Rapid Shutdowns
  • China
  • China

Chint Group Co., Ltd. (hereinafter referred to as "Chint") was founded in 1984 and is a world-renowned provider of smart energy system solutions. Since its establishment 38 years ago, Chint has always been concentrating on industry and creating brands with one heart, focusing on the core businesses of green energy, smart electricity, and smart low-carbon cities, cultivating scientific and technological incubators, and forming a "3+1" industrial [...]

  • Rapid Shutdowns
  • China
  • China

Sunrous New Energy Technology Co.,Ltd is a new hi-tech enterprise that sets research and development, manufacture, sales organic whole. We mainly focus on research and development, design, product the solar power wind energy source inverters, multifunction power inverter and renewable energy sources relative products, and offers related technical services. Company is located in Suzhou industrial development area in Jiangsu. Company is located in [...]

  • Rapid Shutdowns
  • China
  • China

Suzhou Universal-Power is a high-tech enterprise, which was established on May 2003, a professional and vigorous new energy company focusing on Solar Energy Storage System,Lithium-Ion Battery,MPPT Solar Regulator and solar inverter. Our products have reached over 100 countries worldwide, famous as a world leading professional manufacturer of cost-effective inverters with high quality and efficiency. Products from Universal-Power are with [...]

  • Rapid Shutdowns
  • China
  • China

Xi'an Lonten Renewable Energy Technology Inc.is an industrial scale factory specializing in the R&D and manufacture of patented Solar PV grid tie inverters with such Certificates as VDE-AR-N4105,G83/1, and the company can offer excellent quality ,fast delivery ,high cost performance solar inverter with the following features: High yields Max efficiency of up to 97.5%; Euro efficiency 96.5% Multi-string technology Reliable Integrated DC [...]

  • Rapid Shutdowns
  • China
  • China

Beijing Proflex Energy & Power Technology Co.,Ltd. established in 2007, is a professional technology-oriented enterprise specialized in researching & developing, manufacturing, marketing and technical services for various power inverter, emergency power supply, charger, with nearly 10 years production and sales experience. The company is located in Beijing National Economic and Technological Development Zone, Jinqiao industrial base - [...]

  • Rapid Shutdowns
  • China
  • China

Supplier: Solar Panel - Guangdong Dejiu New Energy Technology Co., Ltd. (Hereinafter called Dejiu Solar) Dejiu Solar started the production of polycrystalline & monocrystalline silicon solar panels since 2011, our factory is located in Foshan, which is very near Guangzhou. Leading Products: Solar Panel (poly & mono) 3 -330 Watt Our Market: Asia, Middle East, South America, Africa Our Advantages: 1. High degree of automation, labor [...]

  • Rapid Shutdowns
  • China
  • China

China

Solar Energy in China Overview

As of right now, China is the world’s largest market for both photovoltaics and solar thermal energy. In addition to that, China has also been the world’s leading installer of solar photovoltaics, and in 2015, they became the world’s largest producer of photovoltaic power, just narrowly surpassing Germany. Moreover, China was the first country to pass 100 GW of cumulative installed PV capacity, and by the end of 2018, that number peaked at 174 GW.

By May 2018, China holds the record for the largest operational solar project with their 1,547-MW project at Tengger. With that said, the contribution to the total electric energy production remains modest as the average capacity factor of solar power plants is relatively low at 17%. Additionally, of the 6,412 TWh electricity that was produced in China in 2017, 118.2 Twh was generated by solar power, which is equivalent to 1.84% of total electricity production. With all these statistics, it is China’s goal to reach 1,300 GW of solar capacity by 2050. If this goal were reached, it would be the source with the largest installed capacity in China.

Aside from solar photovoltaics, solar water heating is also extensively implemented, with a total installed capacity of 290 GWth at the end of 2014. This represented about 70% of the world’s total installed solar thermal capacity.

Rapid Shutdowns used for below projects in China

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Rapid Shutdowns

Rapid Shutdown

If you got your first solar panel system installed in your house, chances are you will see a box with an on/off switch that says “rapid shutdown.” But do you have any idea what does it mean or why is it important to know when installing a solar panel system at home? 

In today’s article, we will provide you with an overview of rapid shutdown requirements, and everything you need to know about it. 

What is Rapid Shutdown?

Rapid shutdown is an electrical safety regulation that requires every solar panel system to set the solar panel shut-off switch. The National Electrical Code (NEC) introduced it to the public in 2014 with the aim to provide a simple way for firefighters to quickly cut off the current in the DC conductors of the rooftop solar panel systems. It is basically set to make sure that the roof of a building is safe from fire. Usually, when the standard inverter of a solar system is switched off, the DC wiring, from the solar unit, still runs particularly when the sun is up.

Why is Rapid Shutdown Requirement Implemented?

The National Fire Protection Association (NFPA) provides rapid shutdown requirements and writes them to the NEC to ensure safety measures. Your home may not catch fire so you don’t have to worry about rapid shutdown functionality. However, if it accidentally happens, firefighters can easily use rapid shutdown solutions to de-energize your solar panel system. 

Remember that simply turning off the solar inverter doesn’t shut down the unit. Turning it off may not power off some inverter setups, wires, and circuits, increasing the risk of electric shock. But if you have a rapid shutdown device, then you can easily power off the entire unit, reducing the electrical voltage of your solar panel system in less than a minute. Generally, the rapid shutdown code set the standard to quickly reduce the voltage of any conductors.

Is Rapid Shutdown Required?

Rapid shutdown is a safety measure of the National Electrical Code (NEC). The NEC releases a new or updated set of requirements for safe electrical systems every three consecutive years. Technically speaking, the rapid shutdown is not required everywhere in the United States, although it’s a good idea to install a solar panel system with a rapid shutdown switch. 

Another important thing to note is the NEC is not federally mandated, so individual states can freely choose to follow and abide by the code within their time frame and discretion. Some states choose an independent, state-wide electrical code instead.

Should You Comply with the Rapid Shutdown Regulation?

Generally, solar power systems without rapid shutdown switches are not totally unsafe to first fire responders. If you have a solar power system installed before the implementation of the rapid shutdown, it is less likely to expose your building to more risk. As long as your solar installer is well-experienced with the job, you have nothing to worry about.

However, if you want to be safe and secured, and for your peace of mind, it’s certainly worthwhile to follow the rapid shutdown requirement. Most of the time your installers are highly educated when it comes to changing codes for your state. They also can design your solar power system that can easily comply with all rapid shutdown requirements.

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