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With the decrease in module prices, attention has shifted to decrease the system cost of other components like BOS, combiner boxes etc.With the decrease in module prices, attention has shifted to decrease the system cost of other components like BOS, combiner boxes etc.

Read more: Goldi Green introduces the 1500 Volt system module

Overview

The solar industry is revolving very fast. For the utility scale plant, it faces many challenges. For example, the declining PPA, the pressure of investment costs and the more stringent demand. The new standards require the inverter either to have a wide range ride through capability or special grid support function, those new requirements and standard set a high threshold for the inverter. To follow the market tide, SUNGROW released its grid support utility-interactive inverter SG3125HV.  With the application of SG3125HV, the solar plant will have no risk to interact with the utility and it brings much more benefit for the solar plant.

Read more: SUNGROW'S SG3125HV IS DESIGNED FOR EASY...

Press R SQ June 18

GOODWE IS A LEADING, STRATEGICALLY-THINKING ENTERPRISE WHICH FOCUSES ON RESEARCH ANDGOODWE IS A LEADING, STRATEGICALLY-THINKING ENTERPRISE WHICH FOCUSES ON RESEARCH ANDMANUFACTURING OF PV INVERTERS AND ENERGY STORAGE SOLUTIONS. WITH AN IN-HOUSE R&D TEAM OF 200EMPLOYEES IN TWO R&D CENTERS, GOODWE CAN OFFER A COMPREHENSIVE PORTFOLIO OF PRODUCTS ANDSOLUTIONS FOR RESIDENTIAL, COMMERCIAL AND UTILITY SCALE PV SYSTEMS, ENSURING THAT PERFORMANCE ANDQUALITY GO HAND-IN-HAND ACROSS THE ENTIRE RANGE.

Solar PV systems are making a mark in Renewable energy space across the globe. Avi Solar Energy Pvt Ltd is established as a turnkey solutions provider for O&M and Analytics. The company is making waves with its wireless SCADA system for solar PV plants. With vast Operations & Maintenance experience in MW plants, the team has expert understanding of the challenges and key performance factors in the solar domain.   Avi Solar offers entire range of SCADA hardware such as communication modules/ repeaters, String Monitoring Units and Combiner boxes.

Read more: IoT BASED PERFORMANCE MONITORING OF SOLAR PV...

Overview

The solar industry is revolving very fast. For the utility scale plant, it faces many challenges. For example, the declining PPA, the pressure of investment costs and the more stringent demand. The new standards require the inverter either to have a wide range ride through capability or special grid support function, those new requirements and standard set a high threshold for the inverter. To follow the market tide, SUNGROW released its grid support utility-interactive inverter SG3125HV.  With the application of SG3125HV, the solar plant will have no risk to interact with the utility and it brings much more benefit for the solar plant.

Read more: SUNGROW'S SG3125HV IS DESIGNED FOR EASY...

LONGi Solar, a leading, vertically integrated monocrystalline manufacturer, showcased its third-generation product - the Hi-MO3 half-cut bifacial PERC module - at the SNEC (2018) International Photovoltaic Power Generation and Smart Energy Exhibition & Conference at the Shanghai New International Expo Center.

Read more: Hi-MO3 with 320W Front-side Power: A Worthy...

Ever since its inception, Sileaf has been at the forefront of the Indian energy landscape developing innovative robust and reliable products. Sileaf’s R& D team has over 6 years of experience and efforts building robust solar products made in India for Indian Environment and has developed a range of innovative products including  Solar DC water pump, Off-Grid Inverter, String inverter, Data logger and Power management Controller (DG controller / Reverse power controller). In January 2018 Sileaf launched its indigenous advanced storage solution with Battery Management System.

Read more: Sileaf’s Advanced Storage system

Solar Rooftop Market in India

India added more rooftop solar power capacity in the last financial year than in the previous four  years combined, making it the fastest-growing segment in the country’s clean energy space. During the financial year 2017, some 715 megawatts (MW) of systems were added, up from 227 MW in the previous year, taking the country’s total installed capacity to 1.3 GW according to a report by Bloomberg New Energy Finance (BNEF). This has happened largely because rooftop solar power is now cheaper than commercial and industrial power in all major Indian states. Overall, because of increased competition and low solar panel prices, setting up rooftop systems has become cheaper than the global average by between 39% and 50% in India.

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Increasing Scope for Residential Sector

In the past ten years, there has been a relentless defeat in the cost of significant components, for example, solar cells. Due to higher power creating limit, rooftop solar panels are turning into the most preferred choice for substitute energy, outperforming other green energy sources. Till recently, most of the growth in the rooftop segment is driven by commercial and industrial users. The economics work for them given the fall in costs of installation and reduction in energy prices. On the other hand, the residential segment hasn’t taken off much till now. The high upfront capital expenditure currently make rooftop PV (photo voltaic) less attractive for residential consumers. However, residential applications and small scale rooftop projects are impelling this market further now. Stiff competition in the market combined with falling prices for the solar components make solar systems affordable for residential and small scale industries. Additionally, Government incentives and policies (30% of project cost offered by the MNRE and additional incentive from State governments) to push rooftop solar installations have also contributed to the growth over the last year. Lucrative returns topped with low and easy maintenance is driving the residential segment to the next level.

As the demand for residential sector grows, there are many new entrepreneurs & freelancers who wish to tap on the opportunity.Solar rooftop panels are extremely user-friendly and convenient to install which is one of the major factors that influence the development of the market. DIY solar kits can become a handy tool for many  professionals in such time. Solar installers can provide smart and speedy solution through DIY solar kits.

DIY Solar Kit

DIY solar kit can provide plug & play solutions in residential, commercial & other stand-alone systems. It is basically an all-in-one solution which carries all required components of a small-scale solar system ranging usually from 1 KW to 10 KW. Usually the DIY kits include:

  • Solar PV Modules
  • Solar Inverters
  • DCDB /ACDB with Junction Box
  • AC / DB Cables
  • Earthing Protection
  • Mounting Structure
  • User’s Manual / Installation Guide
  • Bi-Directional Meter (optionally)

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DIY Solar Kits from Sanelite Solar Pvt Ltd

Sanelite Solar Pvt Ltd is a pivotal company in the area of renewable energy providing end-to-end solar PV solutions from manufacturing solar PV modules to solar EPC installations. Sanelite Solar is a preferred manufacturer of high-quality PV modules of capacity 40Wp to 335Wp. Created in astate- of-the art manufacturing facility and quality-tested at every stage of lifecycle, these panels are aesthetically superior absorber of sunlight. Sanelite Solar also offers end-to-end solar EPC solutions including grid-connected solar PV systems, off-grid solar PV systems, and solar power plants. Our experience of engineering and installing high quality solar power systems and our uncompromising ervice is what makes us a strong player. With its extensive experience of solar installations and strong franchisee/dealer network feedback, the company has developed a one of its kind product – the Solar DIY Kit.

1. Overview
 
The solar industry is revolving very fast. For the utility scale plant, it faces many challenges. For example, the declining PPA, the pressure of investment costs and the more stringent demand. The new standards require the inverter either to have a wide range ride through capability or special grid support function, those new requirements and standard set a high threshold for the inverter. To follow the market tide, SUNGROW released its grid support utility-interactive inverter SG3125HV.  With the application of SG3125HV, the solar plant will have no risk to interact with the utility and it brings much more benefit for the solar plant. 
 
2. Features
 
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Fig-1: SG3125HV Appearance
 
The SG3125HV is designed with a 10 feet enclosure and effective cooling system. Based on SUNGROW’s advanced development platform, SG3125HV has an excellent reliability performance and high efficiency. Moreover, the inverter is designed for easy skid integration, convenient for site installation and ultimately reducing the site work and cost. With the application of SG3125HV, the plant construction will move faster and it will finally bring customer a higher ROI. 
 
3. Technical Specifications
 
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3.1 High efficiency and reliability.
 
Sungrow’s SG3125HV was designed to have a power converter platform that was more efficient than previous generations of products. Utilizing 3-level converter bridge, efficient modulation algorithm and latest magnetic and switching devices, the SG3125HV provides an extraordinary efficiency performance, bringing more energy yield and further increasing project ROI. The maximum efficiency of SG3125HV can reach 99% and Euro efficiency 98.7%. Sungrow has been focused on the inverter development and manufacturing for over 20 years, the accumulated experience has equipped Sungrow inverter with an excellent reliability performance. In addition to that, the SG3125HV is developed with SUNGROW latest advanced platform and tested with Sungrow world leading testing center.
 
 
3.2 Wide operating temperature range.
 
Sungrow’s SG3125HV has one of the widest operating temperature ranges available in the industry, with full power available from -30°C to 50°C and operation in power de-rate mode available up to 60°C.The speed controlled fans are used for SG3125HV to minimize internal temperature rise, which will lead to a reliable operation, long lifetime, low power consumption.The SG3125HV is rated for 3437KW at ambient temperatures up to 45°C and it is rated to 3125KWup to 50°C. Comparing to most of the inverter start derating after 25°C, SUNGROW SG3125HV will bring more yields for customers, especially when deployed in high temperature area.
 
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 Fig-2: SG3125HV temperature performance curve
 
 
3.3 High integration less initial cost
 
Sungrow’s SG3125HV is highly integrated and cut initial investment and installation cost for customers. The SG3125HV has integrated the re-combiner into the DC side cabinet, so this extra cost can be saved. Sungrow SG3125HV has integrated the power supply panels including 480Vac and 120Vac, which can be used for the tracker motors, control box, communication box, etc. The plant will not need extra power supply panels, transformers and boxes for the tracker, etc. This will save the space for the SKID integration and site installation efforts, meaning the initial investment will be further reduced. 
 
3.4 Advanced mechanical design
 
The SG3125HV adopts the 10 feet container as the enclosure to reduce the shipping cost.  The 3 inverter units inside the enclosure share the same DC input as the below diagram shows, those 3 inverter units are working in parallel, if one of the unit fails, the other unit can still keep running. 
 
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Fig-3: SG3125HV Single Line Diagram
 
Sungrow’s SG3125HV is designed for easy operation and maintenance. This unit has a touch screen which is located on the front door, all of the inverter running information and settings can be viewed and changed on this touch screen, which is easy for site operation. All of the components inside the inverter are front accessible, which is easy for maintenance. Specially, the SG3125HV use Sungrow patented air filter design, which is effectively resist the dust going into the inverter, and the filter is easy to be maintenance without any tool. The inverter is easily to be integrated to the SKID, Sungrow provide the installation accessories for customer convenience which will bring more values and reduce the initial cost. All of the interface/plate for installation is designed to be removable and easy to be punched, which will be convenient for customer to install the conduit and connect the cables, all of those design lead to less site work and in hence reduce the installation cost.
 
3.5 Flexible in 6.25MW or 12.5MW block
 
SG3125HV is flexible in 6.25MW or 12.5MW. 6.25MW solution uses two SG3125HV inverters to access three winding transformer. It can save initial transformer, cable and MV switchgear investment. 50MW plant just needs 8 block.
 
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Fig-4: 6.25MW Solution Design
 
3.6 Excellent grid support function. 
 
SG3125HV has an advanced voltage and frequency ride through capability. The high voltage ride through is up to 1.4 Un and It can compensate reactive power during LVRT.  With the application of Sungrow SG3125HV, the customer will enjoy the high availability and get satisfied with the flexibility. The inverter also has a good reactive power capability and it can inject active power with power factor 0.8. Moreover, the inverter can supply reactive power to the grid at night to support the grid, this will reduce investment on SVG equipment. 
 
4. Summary
 
SG3125HV is designed to bring a high ROI for utility scale PV plant, with the application of this containerized inverter, the total system cost will be reduced due to saved integration cost, installation cost, O&M cost, and lower initial cost. Moreover, this grid support utility-interactive inverter brings more reliability to the utility and will further reduce the grid interconnection risk. We can expect that Sungrow SG3125HV will bring much more benefit for the solar industry.
 

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