The Next Step in Solar Cell Efficiency - More Power at Low Light

PERC technology increases the overall panel performance by increasing a cell’s ability to capture light. 

Innovative total green energy solutions provider JLanka Technologies in another pioneering venture introduced the latest solar panel technology being used by their global partners Trina Solar which allows solar panels to be more efficient in their assigned tasks.

Trina Solar gives a “second chance” 

In traditional solar panels when an electron reaches the back surface of the panel it loses its ability to contribute to the electricity generation process. However, with Trina Solar’s Passivated Emitter Rear Cell (PERC) technology electrons now literally have a “second chance” to be actively involved in the electricity generation. The electrons work on a bounce back effect that brings them to the front of the panel periodically which generates more electricity. These efficiency improved solar panels are now being widely used across the world and have become an instant success due to their efficiency and high rate of productivity. 

Speaking on the launch of this innovative product, a representative from JLanka Technologies notes, “JLanka Technologies has always been a company known for its innovation and ability to bring sustainable energy solutions to Sri Lanka. With this new Trina Solar PERC technology the possibilities are endless, especially since we are a tropical country with sunshine for most of the year. The power generation capacities of the solar panels are greater with these panels and we look forward to many new customers benefiting by choosing this product as their energy solution.”

 

Explaining the technology - More power at Low Light

PERC technology will generate more current due to the reflection of  light at the backside of the cell.

Explaining the technology in laymen terms he added, “Imagine the difference between driving on a regular traffic-congested road and a highway. The efficiency is definitely higher on a highway drive that is also smooth and more productive in terms of time. This is the difference presented by the new PERC technology.”

 In traditional technology sunlight used to generate solar electricity can be categorized as shorter wave lengths light and longer wavelengths lights. Generally, shorter wave length light (blue) contributes more to generate solar electricity than longer wavelength light (red). When the sun is at an angle in the mornings and evenings and or cloudy days, blue light will be absorbed by the atmosphere as it has a longer path to travel to the Earth’s surface than when the Sun is directly overhead. This eventually drops the performances of solar cells. 

However, with PERC technology it increases the overall panel performance by increasing a cell’s ability to capture light. It creates a new layer between the top layer and the back layer of the solar cell structure. When an electron of a red light reaches this new layer, it will reflect the electron towards the top layer and gives the electron a second chance to generate current. This enables not just greater efficiency but also reduces temperature, and generates more power in weak light.

 A residential solar panel system generally consists of about 20-30 panels while an industrial set-up is made up of about 700. As each panel built with the PERC technology becomes more efficient, the entire system generates more power. As solar panels come with a 25 year warranty, it would amount to a large production of electricity over the years saving customers money and contributing greatly to environment protection. These are all benefits that JLanka customers who choose the latest PERC technology solar panels can enjoy.

 The latest solar panels built to PERC technology will be exclusively available at JLanka Technologies in capacities to suit both the domestic and industrial markets. 

Call Atheek on 077 017 1105 for more details on advanced features of JLanka solar power solutions or email to : Support@jlankatech.com 

US & Europe Fire Safety standard solar solutions now in Sri Lanka

JLanka Technologies in pursuit of increasing integration, energy efficiency, environmental awareness, and technological advancements through its products and services is now advocating and empowering citizens on mitigating crisis and fire safety precautions.

“For the most part, the solar power industry is unregulated,” said the Technical Manager at JLanka, Channa Mudalige. “But there is a continuing upward trend for not just commercial users but for homes to opt for solar energy solutions and it is with this in mind that we’re now advocating and empowering them with the know-how on how to better prepare themselves in the event of a fire.”

Workshop for Firefighters 

As part of this unique initiative, JLanka hosted a workshop recently at the Kadawatha Arpico Super Centre. Invited to the workshop were firefighters and security officers from the same vicinity. 

Both as a Corporate Social Responsibility and a mandate of the company itself, JLanka Technologies has been hosting a series of seminars and workshops across the country in a bid to empower citizens with know-how and understanding of solar power, solar photovoltaic (PV) and fire safety measures. 

According to Nipun Silva, Safety Engineer of JLanka Technologies, SolarEdge offers a PV power harvesting system that consists of power optimizers connected to each module, a PV inverter and module-level monitoring. Additionally, SolarEdge systems have a built-in safety feature that reduces safety risks.

When power optimizers are connected to the PV modules, the modules continue in “operation mode” only as long as a signal from the inverter is constantly renewed. 

In the absence of this signal, power optimizers automatically go into safety mode, shutting down DC current as well as voltage in module and string wires.

The SolarEdge system, with the integral SafeDC feature, ensures complete safety for firefighters working with PV modules, eliminates the risk of electrocution, and is the only inverter solution that is certified in Europe as a DC disconnect.

Comply with Global Fire Safety Standards

A solar power system protected by the SolarEdge SafeDC 

Same solar power system without the protection of SolarEdge SafeDC

In the United States, for example, the National Electric Code, NEC 2014 requires rapid shutdown of PV Systems on Buildings. As part of this requirement, DC voltage from 10 foot from the edge of the array to the inverter has to be lower than 30VDC within 10 seconds of rapid shutdown initiation. The SolarEdge solution complies with this requirement. 

Another example is the German application guide, VDE- AR-E 2100-712 requires, among other things, that after switching off the AC power supply, emergency forces will not expose themselves to the risk of direct contact with DC cables, which still carry a voltage greater than 120 volts DC.

SolarEdge SafeDC™ - Superior DC Safety Solution

To get more information about JLanka fire safety solutions in solar PV installations, contact Nipun Silva, Safety Engineer of JLanka Technologies on 077 543 2065. 

For other inquires, contact 077 01234 67 or email to : support@jlankatech.com

JLanka Technologies is the next generation solution provider which has been instrumental in promoting better health conditions and productivity through redefining energy usage. Under a five-fold mission J Lanka Technologies generates clear energy, manages your electricity consumption, makes your home smarter, transforms your business and saves water through their unique products and services.

J Lanka to showcase how to “Redefine Energy” at Techno Sri Lanka 2015

J Lanka Technologies, the #1 solar provider in Sri Lanka will “Redefine Energy” and guide Sri Lanka towards a cleaner and greener future by playing a key role at this year’s Techno Sri Lanka 2015 exhibition. Techno Sri Lanka is the only exhibition, which features the widest range of engineering and technology products and services.

J Lanka Technologies as the next generation solution provider with emotional and functional connectivity has been instrumental in improving greater health conditions and productivity through redefining energy usage, connected automation and saving water. Under a five fold mission J Lanka Technologies generates clear energy, manages your electricity consumption, makes your home smarter, transforms your business and saves water through their unique products and services.

J Lanka Technologies is gearing up to putting all of the solutions mentioned above together in order to create an integrated solutions package. This will be the first time that we attempt this exercise as a measure to provide greater and more useful solutions to our clients. These integrated solutions being offered at Techno 2015 will no doubt add value to both existing and future customers. Our passion is to save energy and water. We save energy by redefining the energy usage with the ePro 1000 electricity monitoring system while saving water by minimizing the usage with Nano Shield. We also have solutions to harvest the energy of the sun, monitor usage, automate certain areas, and provide intelligence to machines, aid in electrified transportation, and cleaning systems with the minimum usage of water.

By providing these solutions J Lanka Technologies is once again setting a trend in the technology market which they pioneered with solar systems. In a future that is heading towards integration, energy efficiency, environmental awareness and protection, and technological advancements to make life better for all, J Lanka Technologies is diversifying in an attempt to have a one-stop-shop for solutions that provide all of the above.