LAUNCHING- Solis 255K “More Than BIG” on 22nd July 2020

LAUNCHING- Solis 255K “More Than BIG” on 22nd July 2020

solis inverter

2020 is the year when the photovoltaic industry moves from subsidy to parity, and also the year of great technological change! Since the beginning the year, at least 7 companies have released new PV modules, with the power moving from 500W to 600W+!

At the same time the renewable industry in India is witnessing aggressive bidding, so  the current trends and requirement for higher capacity PV modules and advance technology string inverters to maximize plant generation and achieve faster return on investments (ROI) is likely to increase at pace.

The new technologies adaptation tends to be either in PV modules or solar inverters, which help PV plants to achieve better results and have many other advantages in terms of ease of design, project installation, and ease of operation and maintenance which is also an added advantage with string inverter technologies.

The advancement of PV module technology further promotes the transformation of system design and inverter technology and realizes the reduction of LCOE. In order to promote the reduction of LCOE, PV power plant design presents three obvious new trends:

  • Trend 1: High DC/AC ratio becomes the mainstream
  • Trend 2: The adaptation of Bi-facial modules usage exceeds more than 50% globally
  • Trend 3: High watt peak power PV modules are widely used.

It is exciting to see that new technologies promote the cost reduction and efficiency increase of the photovoltaic industry, but at the same time, there are other numerous challenges and questions or problems which project developers or IPP companies need to deal with. Taking into consideration all these requirements and understanding the market demand, Ginlong technologies has designed and developed an inverter for PV power plants; Solis-255K-EHV (“Solis 255K”) ultra-high-power inverter.

Solis 255K Will Be Launched in India from 2:30 PM to 4:15 P.M on July 22nd 2020.By that time leading PV experts- Shri Pranav Mehta Chairman of National Solar Energy Federation Of India, will share with us India Solar market Challenges and Opportunities and How ISA is supporting the Global Solar Industry and How you forecast 2021 India solar market will be. Mr. Parag Sharma, CEO of O2 Power Private Limited and Mr. TN Ramesh, Technical Head of Sterling & Wilson will be joining our new product launch as the guest speaker.

More details please register at


  1. 53 MPPTs design per MW supports 200% DC/AC ratio

“High DC/AC ratio “can further improve the power curve to optimize the comprehensive income of the PV plant. Some inverters cannot achieve high DC/AC ratio due to the limitation of inputs. Solis 255K, with rated power up to 255kW, 12 MPPTs and 24 string inputs and 53 MPPTs design per MW meets the requirements of large-scale power plants and overall efficiency breaks through 99%. For the same 6.3MW block design, Solis 255K inverter solution can reduce LCOE by more than 3.5%.

Single-facial Modules* Bi-facial Modules*
PV module Size(mm) 166 182 210 166 182 210
Power(W) 455 540 500 590 700 650
Power/ string(W) 13.65 14.04 13 15.38 18.25 16.9
Input Power(W) 283.92 336.96 312 369.1 438.05 405.6
 DC/AC ratio 1.23 1.47 1.36 1.6 1.9 1.76

*the above table is based on Chinese PV module manufacture data base.

  1. Supports 25A short-circuit current which allows compatibility with Bi-facial modules

In addition to the high DC/AC ratio, high-power, Bi-facial modules can also effectively reduce the LCOE, so are becoming much more popular and widely used.

India introduced a solar power plant policy 10~12 years ago, and now more than 1 decade on,  India’ solar PV industry has grown rapidly and has developed several solar parks, and large rooftop projects.  The approx. capacity would be 38GW+, GOI has stetted the target of 100GW by 2022, and also promoting the “make in India” concept, due to which we have seen great increases in local manufacturing facilities for producing finished PV modules in India.  Few company’s have PV cell production facilities in India, and 70% of PV modules are imported from overseas to achieve the annual targets .

Compared with traditional PV modules, the short circuit current and Nominal current of the new large silicon wafer modules can be improved by more than 35%! For Bi-facial modules, the power gain on the back side mainly comes from the current increase, by another 10% or so, with the highest close to 15Amp!

At present, the DC input capacity of mainstream string inverters in the market is about 12-13A, which can no longer meet the requirements of high-power Bi-facial modules. Aiming at the trend of high-power Bi-facial modules, Solis 255K upgrades and improves the hardware and software. Solis 255K DC input current and short-circuit current of each string can reach up to 15A and 25A, which perfectly adapts to high-power Bi-facial modules.

PV module Size(mm) 156.75 158.75 166 182 210 Solis-255K-EHV
Power(W) 380 410 445 530 500
Operating Current(A) Single-facial 9.47 9.96 10.73 12.82 11.8 15/30A
Back +10% 10.42 10.66 11.88 14.1 12.34
 Short Circuit Current  (A) Single-facial 9.97 10.6 11.52 13.71 12.5 25/50A
Back +10% 10.97 11.66 12.67 15.08 12.98

*the above table is based on Chinese PV module manufacture data base.

  1. Adaption of high power Bi-facial modules, lower LCOE

Solis 255K is the highest power string inverter available today, which perfectly matches with the high-power modules to help the system owner achieve a lower LCOE.

Compared with low-power modules, high-power modules can effectively reduce the cost of DC cables, inverter foundation, land and labor. “255kW inverter + high power modules” VS “low power inverter + low power modules”, Cost savings on the AC side can result in approximately 7% reduction in the LCOE.

  1. Expandable Storage Interface

Solis 255K has an expandable storage interface to accommodate peak saving and provide electricity to support loads and to reduce the overall power supply cost. Energy storage terminals are integrated, which can support up to 125kW charge and discharge power. This inverter facilitates the expansion of energy storage at a later stage, without the need to change any existing plant design. It can easily solve the requirement whether the power plant needs energy storage now or in future. Solis 255K has been designed to deal with current market demand and it can easily adapt to become a storage inverter if, in future, storage is required.  The system can transform into an energy storage plant.

  1. Solis 255K Ultra high-power inverter is launched

To match with the new trend of market technology changes, Solis 255K, with more professional technical methods adopted and to provide a one-stop solution for all developers and IPP companies! Solis 255K has been designed and is capable enough to work with high DC/AC ratio and the high current carrying capabilities which are major concerns when using high-power bi-facial modules.

Focus on quality and continuous innovation is the core strength of Ginlong Technologies. The design and manufacturing of Solis 255K will lead to “Green Energy Revolution!!!”

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