Saturday, December 29, 2012
IBC Solar
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Bad Staffelstein / Germany, August 06th, 2012 – IBC SOLAR AG, a global leader in photovoltaic systems, today announced the extension of its PV inverter product portfolio to include inverters from Sungrow Power Supply Co., Ltd. With nearly 2000 megawatts (MW) of installation capacity worldwide, of which 450 MW are installed in Europe, Australia and North America, Sungrow is the largest photovoltaic (PV) inverter manufacturer in Asia, and the fifth largest PV inverter manufacturer in the world in terms of MW shipment in 2011. Via this partnership, IBC SOLAR will be able to offer European clients an even wider range of product pricing in the field of high-quality PV inverters.
With the new cooperation, IBC SOLAR will provide its national and international clients with a selection of PV inverter products that is more tailored to their specific requirements. “By including Sungrow inverters into our product portfolio, we expand our broad range of high-quality products that offer an ideal price-performance ratio,” said Norbert Hahn, IBC SOLAR board member. “Sungrow is a reliable partner who is renowned for high quality standards and innovativeness. In combination with an optimal cost structure, our choice to include the PV inverter specialist in our portfolio was a very easy one, but also well-considered.”
IBC SOLAR subjected Sungrow’s inverters to stringent testing, both in the field of application and via independent auditor. The results of IBC SOLAR field evaluations showed that the inverters are highly robust and reliable. Testing and production audits doubly verified Sungrow’s high product quality, proving that the inverters have long life cycles and top efficiency.
“IBC SOLAR is recognized Europe-wide as a high-quality brand, as well as one of the largest photovoltaic systems integrators,” said Mr. Renxian Cao, CEO of Sungrow. “Now we will come together to use both of our companies’ strengths on a worldwide scale – reliable products with an attractive cost-performance ratio and profound expertise in photovoltaic installations.”
IBC SOLAR offers a training program which will comprehensively introduce the new Sungrow products to its Premium Partners in Germany and some selected European countries. For residential and especially for commercial installations, Sungrow inverters will be perfectly embedded in the IBC SOLAR system periphery. With the IBC SolControl monitoring system, they will meet even the highest grid requirements.
Friday, December 28, 2012
Friday, December 21, 2012
Wednesday, December 19, 2012
阳光电源荣获“2012年度十大品牌逆变器供应商”
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10月17日，由《现代光伏》杂志和全球太阳能光伏网联合主办的“2012年度光伏行业品牌企业五十强”评选在上海落下帷幕，阳光电源股份有限公司凭借光伏逆变器产品的优异表现赢得评委和行业人士的一致认可，获得“2012年度十大品牌逆变器供应商”的称号
PV Combined box
For a large-scale grid-connected PV system, it is a general practice to install a DC combining device in between the PV modules and inverters for the sake of minimizing the cable distance between them, facilitating maintenance and improving reliability. With many years of PV grid-connected system design experience, our PVS PV array combiner box series is specially-designed for meeting the need of high performance and high reliability of PV systems. Available for all around the world.
| TYPE | PVS-8 | PVS-16 |
| Max. PV Array Voltage | 1000Vdc | 1000Vdc |
| Max. PV Array Parallel Inputs | 8 | 16 |
| Rated Current for Each String(replaceable) | 10A | 10A/15A |
| Output Terminal Type | PG21 | PG21 |
| Protection Degree | IP65 | IP65 |
| Environment Temperature | -25～+60℃ | -25～+60℃ |
| Environment Humidity | 0～99% | 0～99% |
| Dimensions(W×H×D) | 670×600×210mm | 670×600×210mm |
| Weight | 27kg | 31kg |
| Standard Accessories | ||
| DC Circuit Breaker | Yes | Yes |
| SPD | Yes | Yes |
| Optional Accessories* | ||
| Current Monitor for Each String | Yes | Yes |
| SPD Failure Detection | Yes | Yes |
| Communication | RS485/Wireless(Opt.) | RS485/Wireless(Opt.) |
SG1000TS ( 1MW center system turn-key solution )
| Input (DC) | |
| Max. DC power (@ cos φ =1) | 1200KW |
| Max. input voltage | 1000V |
| Start voltage | 520V |
| Min. working voltage | 500V |
| Max. input current | 2450A |
| MPPT voltage range | 500~820V |
| Number of DC inputs | 24 |
| Output (AC) | |
| Rated power | 1000KW |
| Max. output AC power | 1200KVA |
| Max. output current | 2200A |
| Max. THD | <3%(at nominal power) |
| Rated grid voltage | 315V |
| Grid voltage range | 250~362V |
| Rated grid frequency | 50/60Hz |
| Grid frequency range | 47~52Hz/57~62Hz |
| Power factor at rated power | >0.99 |
| Isolation transformer | No |
| DC current injection | <0.5% of rated inverter output current |
| Adjustable displacement factor | 0.9 (lagging) ~0.9 (leading) |
| Efficiency | |
| Max. efficiency | 98.7% |
| European efficiency | 98.5% |
| Protection | |
| Input side disconnection device | Breaker |
| Output side disconnection device | Breaker |
| DC overvoltage protection | Yes |
| AC overvoltage protection | Yes |
| Grid monitoring | Yes |
| Ground fault monitoring | Yes |
| Insulation monitoring | Opt |
| General Data | |
| Dimensions (W/H/D) | 6058x2896x2438mm |
| Weight | 9T |
| Operating temperature range | -35~+55℃ |
| Self-consumption at night | <200W |
| External auxiliary supply voltage | 230V |
| Cooling concept | Temperature controlled air-cooling |
| Degree of protection | IP54 |
| Max. permissible value for relative humidity (non-condensing) | 0~95%, non -condensing |
| Max. altitude | 6000m (derating > 3000m) |
| Fresh air consumption | 13770m³/h |
| Display | Touch screen LCD |
| Communication protocols | Modbus |
Tuesday, December 18, 2012
India starts antidumping investigation, China considers making proposed import duties retroactive
November, 2012: India’s Department of Commerce has launched an antidumping investigation into silicon and thin-film photovoltaic (PV) cells imported from the US, China, Taiwan and Malaysia.
The investigation seeks to determine whether foreign manufacturers have engaged in unfair trade practices that have materially damaged the Indian solar industry. The period of investigation runs from Jan. 1, 2011 through June 30, 2012, while the injury period goes back to April 1, 2008. The investigation was opened in response to a complaint filed by the Solar Manufacturer’s Association, which represents solar producers Indosolar Ltd., Jupiter Solar Power Ltd. and Websol Energy Systems Ltd. Indian producers have long complained that solar imports – mainly those from the US – are negatively impacting India’s local PV industry. To combat this trend, India’s national solar program includes a domestic content requirement for crystalline silicon products. The requirement, however, has not been as successful as was planned since it does not apply to thin-film installations. In a similar development, earlier this week, China’s Ministry of Commerce (Mofcom) launched a supplementary investigation to determine whether antidumping and antisubsidy duties on solar-grade polysilicon imported from the US, South Korea and the EU should be levied retroactively. Mofcom will issue its ruling on the probe when it publishes the results of the associated antidumping and countervailing investigations next year. The original investigation into polysilicon imports from the EU was launched earlier this month, while the US-Korea investigation was launched in July. The original investigations will each last at least one year.
Source: Indian Ministry of Commerce & Industry, Chinese Ministry of Commerce
The investigation seeks to determine whether foreign manufacturers have engaged in unfair trade practices that have materially damaged the Indian solar industry. The period of investigation runs from Jan. 1, 2011 through June 30, 2012, while the injury period goes back to April 1, 2008. The investigation was opened in response to a complaint filed by the Solar Manufacturer’s Association, which represents solar producers Indosolar Ltd., Jupiter Solar Power Ltd. and Websol Energy Systems Ltd. Indian producers have long complained that solar imports – mainly those from the US – are negatively impacting India’s local PV industry. To combat this trend, India’s national solar program includes a domestic content requirement for crystalline silicon products. The requirement, however, has not been as successful as was planned since it does not apply to thin-film installations. In a similar development, earlier this week, China’s Ministry of Commerce (Mofcom) launched a supplementary investigation to determine whether antidumping and antisubsidy duties on solar-grade polysilicon imported from the US, South Korea and the EU should be levied retroactively. Mofcom will issue its ruling on the probe when it publishes the results of the associated antidumping and countervailing investigations next year. The original investigation into polysilicon imports from the EU was launched earlier this month, while the US-Korea investigation was launched in July. The original investigations will each last at least one year.
Source: Indian Ministry of Commerce & Industry, Chinese Ministry of Commerce
Sungrow inverters successfully connected to medium voltage grid in Germany
Sungrow Power Supply Co,. Ltd. announced its four projects has been successfully connected to the gird respectively with different EPCs from July to September 2012, and so far this is Sungrow’s best shot as of entering the German market since 2010. The reference projects as following:
• Project Hottinger, Location: Königsbach, Power Output: 58 KWp
• Project Hanni Linda, Location: Jüterbog, Power Output: 675KWp
• Project Moosburg S&R, Location: Moosburg, Power Output:140KWp
• Project Geltinger PV Anlage, Location: Dessau-Roßlau, Power output: 360KWp
As the largest PV market in the world, Germany always attracts the global attention by its pioneer spirit and top level standards among this industry, especially the German BDEW directive which is a recognized high threshold with a number of technical requirements to the performance of inverters. As a result of BDEW becoming the compulsory market access standard, Sungrow’s R&D team had developed targeted research scheme and co-operated with related German partners to enhancing R&D strength and making breakthrough by teamwork. Since May 2012, Sungrow meets for its product family SG10/12/15/20KTL with output-power of 10kW to 20kW, the German BDEW requirements for medium-voltage as well as VDE AR-N4105 for low-voltage. And Sungrow is the first Chinese enterprise owns both the two certificates.
Together with the partner companies Solare-Datensysteme, Meteo-Control,Skytron and Papendorf-SE can all control functions be implemented which could be required by the utility companies. As a further success, Sungrow has been the product portfolio of two the largest PV-System integrators in Germany, IBC and Krannich.
Mr. Cao Renxian, CEO of Sungrow, said, “These projects are good examples of how Sungrow is helping European solar projects to save cost and maximize efficence. We are continuing to be the one of the fast growth inverter manufacturer and to improve our solution which offer maximum energy harvesting for our customers.”
Sungrow’s SG30KTL inverters successfully connected to grid in Spain
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Sungrow Power Supply Co,. Ltd, the largest Asia’s producer of inverters, today announces the successful grid connection of a 720KW rooftop project in Roldan-Torreacheco, Spain where Sungrow’s SG30KTL inverters were installed.
The project was developed and executed by Himin Solar Co.,Ltd and Juwi Solar Inc. SG30KTL is a transformerless inverter with higher efficiency. Its aluminum housing makes it very compact, robust and light in weight. The integrated DC combine and optional surge protection function lowers the system cost. The inverter is ideally suited for the medium voltage PV project for its flexibility and high efficiency, especially Sungrow’s SG30KTLsuccessfully obtainedthe German BDEW requirements for medium-voltage as well as VDE AR-N4105 for low-voltage. And Sungrow is the first Chinese enterprise owns both certificates.
As a wall-mounted string inverter with the largest power in the world, SG30KTL is easy to handle without lift machinery assistance, and also help EPCs, investors and developers to reduce the cost of installation and maintenance. At the time of declining the Feed-in tariff in Europe, SG30KTL has a very wide range of applications for rooftop projects and free-land projects.
"We are very pleased to partner with SUNGROW on the successful installation of our solar system in Europe. We selected Sungrow’s inverters for this project, with whom we are working closely in European countries.” - Michael Martin, CEO of juwi solar Inc. “We are very pleased to provide cleaner energy in Spain," said Cao Renxian, CEO of Sungrow. "In financial crisis, Sungrow is ready to provide cost-effective, large-scale PV solutions for electricity generation." |
Solar Street Light System
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The solar street light works without grid power. It totally relies on solar energy, which is clean, endless and environment-friendly. The system is mainly composed of solar panel, light source, controller and battery. In daytime, when there is sunshine, the solar panel can convert the solar energy to electric power and store it in the battery. At night or rainy or cloudy condition, the controller can judge the brightness of daylight and automatically switch the light on. And the battery shall supply the power for lighting.
The solar street lights are applicable for road lighting, courtyard lighting, landscape lighting, and so on, in both cities and villages.
Comparing with grid-powered street light, the solar street light has advantages of no consumption of grid power, no electricity charge, no need of power supply facilities, no pollution, easy-installation, one-time investment long-time payback, etc.
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Monocrystalline, Polycrystalline & Amorphous PV Solar Panels
To put it simply:
- Monocrystalline panels are more efficient at converting the sun’s rays into electricity, but cost more to process into the modules and therefore are more expensive for the consumer to buy.
- Polycrystalline panels are similar to Monocrystalline in that the cells within the modules are composed of crystal, but this type of panel is less efficient and therefore slightly cheaper to purchase.
- Amorphous (or Thin-Film) panels use silicon that is not cut from crystallised form but are laid within the modules in thinner composites (like strips of film), which is an easier less costly process and therefore cheaper to buy – however the efficiency is much poorer than both Monocrystalline and Polycrystalline.
But What Is Silicon Anyway?
It’s useful to know that silicon is a metalloid – a chemistry term to describe something that is a chemical element but which has metallic properties or in other words an element that is hard to characterise and can be both non-metal and metal.It is the second most abundant element after oxygen in the Earth’s crust and makes up 27.7% of it by mass. Silicon is the principal component of most devices requiring semiconductors, such as microchips and integrated circuits found in many modern-day appliances.In solar panels, silicon is the key component because of its ability to function as a semiconductor at high temperatures.Monocrystalline Solar Panels
These are basically wafers cut from one single continuous cylindrical silicon crystal. Because the process involved in turning these circular wafers into solar modules/panels is more complicated the cost of each panel is therefore higher for the home owner investor. But the efficiency of the panel is higher than the other two types with some top-of-the-range models having a capacity of around 19%.Polycrystalline Solar Panels
A slightly different crystallisation process is used here with many wafers being cut from “ingots” of molten silicon which are then arranged in a kind of scattered mosaic within the module. Because the process is less demanding than Monocrystalline, these Polycrystalline panels are cheaper. However, their efficiency is a lot less with most models reaching between 13%-15%.Amorphous Solar Panels
Thinner than the silicon wafers used in the crystallised solar panels, the amorphous “film” of silicon is layered in each module which makes them far more flexible that the other types. The efficiency is the poorest of the three, though, with ratings of between 6%-10%. But going amorphous can be an advantage for people who have cost in mind and maybe don’t want to go all-out solar.As with many things in life the old adage applies here – you get what you pay for.For the would-be investor in solar panels the question to ask yourself is; how much free electricity do you want to harness? But how much are you willing to spend to obtain it?
Off-Grid Solar Energy System with Battery Backup
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This type of system is for those who truly want energy independence.
It is completely independent of the electric utility grid. It is also very valuable in remote areas where there are no existing power lines. For this reason, off-grid systems are very popular in mountain and forests areas, for cabins or homes that are far away from the electrical grid. It has all of the features and benefits of a standard grid-tied system, but with the additional benefit of uninterruptible power.
The battery backup will ensure that you have electricity for critical loads in when the sun is down or blocked by clouds. When the optional backup generator is added, you are truly protected against nearly any catastrophic situation. There is also a optional DC hookup, which means you can use DC appliances and power devices. |
How Does Solar Work?
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This illustration shows a grid connected solar system during peak sunlight hours. Producing enough electricity for the household, and feeding any surplus power back onto the main grid.
During the sunlight hours, the system feeds any surplus power onto the grid, this offsets the amount of power you take from the grid. The more electricity you produce, and the less you use, the more you save.
At night, the system automatically draws the electricity you need from the grid. This forwards and backwards flow of electricity is completely automatic, and provides a smooth, uninterrupted flow of power for your household.
Grid connected solar power is for areas with existing, or affordable, access to the main grid. For safety reasons, it can not provide back up power during blackouts. Back up options are available if required.
The BenefitsClean, renewable power for your home
Designed, tested, and built, to last a life time
Income generation
Price protected power
Generous Government incentives
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POPULAR SUNGROW STRING INVERTER
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| String inverter widely used for home & commercial application . Sungrow have full range for string inverter from 1.5kw to 30kw system |
Elite Solar attic fan
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| Please contact me if you interested to be our distributor in West and East Malaysia. Contact george@bosasia.com.my |
Project 1MW for 2013
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| Signing of MoU with Petronas Technology University (UTP) for the development of 1 MegaWatt Solar Farm in Perak. |
FIT Rate for solar PV (21 years from FIT)
Project budget: Solar electric systems are not cheap and usually cost more than expected. Modest systems start at around RM45,000 but the majority fall in the RM60,000 to RM100,00 range. There are government incentives and rebates to takeadvantage of that will significantly decrease out of pocket costs. It may not be possible to produce 100% of the energy you use and many systems are supplemental, producing as much as space and/or budget allow. Please see SEDA for Feed In Tariff (FIT) detail.
The cost becomes more reasonable when looked at as a long term investment. After all, you are pre-paying for your electricity at a fixed rate for what could be the rest of your life and providing free energy for your kids and grandkids.
People often complain about a long payback period, but isn't any payback whatsoever a good thing no matter how long? What's the payback on the last car you bought? A PV electric system is a risk free investment with a guaranteed payback.
Easy calculations for system size and cost:
If you know your average kwh/day or know how many kwh/day you would like to produce, a simple calculation will determine system size and cost.
System size in kilowatts (kw) = (kwh/day) / 4 hours (peak sun) x 1.43 (system losses)
Step 1: Divide average kwh/day by number of hours of peak sun, or (kwh/ay) / 4
Step 2: Multiply by 1.43 to account for system losses due to friction, heat, and other inefficiencies.
Example: What size system is needed to produce 20kwh/day?
20kwh/4h = 5kw
5kw x 1.43= 7.15kw
7.15kw = system size to produce 20kwh/day assuming 4 peak sun hours (11am to 3pm).
System cost = system size x RM13,000 to RM15,000
Step 1: multiply system size by RM13,000 for competitive system cost installed
Step 2: multiply system size by RM15,000 for conservative system cost installed
Example: How much would a 7.15kw system cost?
7.15kw x RM13,000 = RM92,950 = competitive system cost
7.15kw x RM15,000 = RM107,250 = conservative system cost
We used to see an average cost of a grid-tied system to be about RM15,000 per kilowatt (array size) installed, but with a growing market, systems are being installed for as low as RM12,000 per kilowatt in competitive areas. Keep in mind that these costs are before any incentives or rebates are taken into account. When the FIT kick in, the return of investment (ROI) will be around 9 to 14 years depend on locations, solar systems, technologies and so forth.
Hopefully this helped introduce you to some of the basic considerations needed before purchasing a solar electric system. There is far too much information to cover in a short guide and anyone serious about greener living should contact us at info@bosasia.com.my or SEDA for more detail.
Please take notes:
1) Malaysia only has 4 hours solar insolation (some areas may be less due to pollution).
2) Malaysia has average of 2 months cloudy/raining day per year, which solar power is not favourable.
3) When solar cell (module/panel) heat up (after noon time), the solar cell's efficiency (power output) will start to drop. Which mean during a hot day, solar panel (PV) actually produce less. This is a major challenge for solar power in Malaysia.
4) Every few months, installed solar panels (array) need to be clean (due to dusk accumulation on the panel) for maximum efficiency. This is an extra cost for the owner and may increased longer payback period. Please also find out other maintenance costs.
The cost becomes more reasonable when looked at as a long term investment. After all, you are pre-paying for your electricity at a fixed rate for what could be the rest of your life and providing free energy for your kids and grandkids.
People often complain about a long payback period, but isn't any payback whatsoever a good thing no matter how long? What's the payback on the last car you bought? A PV electric system is a risk free investment with a guaranteed payback.
Easy calculations for system size and cost:
If you know your average kwh/day or know how many kwh/day you would like to produce, a simple calculation will determine system size and cost.
System size in kilowatts (kw) = (kwh/day) / 4 hours (peak sun) x 1.43 (system losses)
Step 1: Divide average kwh/day by number of hours of peak sun, or (kwh/ay) / 4
Step 2: Multiply by 1.43 to account for system losses due to friction, heat, and other inefficiencies.
Example: What size system is needed to produce 20kwh/day?
20kwh/4h = 5kw
5kw x 1.43= 7.15kw
7.15kw = system size to produce 20kwh/day assuming 4 peak sun hours (11am to 3pm).
System cost = system size x RM13,000 to RM15,000
Step 1: multiply system size by RM13,000 for competitive system cost installed
Step 2: multiply system size by RM15,000 for conservative system cost installed
Example: How much would a 7.15kw system cost?
7.15kw x RM13,000 = RM92,950 = competitive system cost
7.15kw x RM15,000 = RM107,250 = conservative system cost
We used to see an average cost of a grid-tied system to be about RM15,000 per kilowatt (array size) installed, but with a growing market, systems are being installed for as low as RM12,000 per kilowatt in competitive areas. Keep in mind that these costs are before any incentives or rebates are taken into account. When the FIT kick in, the return of investment (ROI) will be around 9 to 14 years depend on locations, solar systems, technologies and so forth.
Hopefully this helped introduce you to some of the basic considerations needed before purchasing a solar electric system. There is far too much information to cover in a short guide and anyone serious about greener living should contact us at info@bosasia.com.my or SEDA for more detail.
Please take notes:
1) Malaysia only has 4 hours solar insolation (some areas may be less due to pollution).
2) Malaysia has average of 2 months cloudy/raining day per year, which solar power is not favourable.
3) When solar cell (module/panel) heat up (after noon time), the solar cell's efficiency (power output) will start to drop. Which mean during a hot day, solar panel (PV) actually produce less. This is a major challenge for solar power in Malaysia.
4) Every few months, installed solar panels (array) need to be clean (due to dusk accumulation on the panel) for maximum efficiency. This is an extra cost for the owner and may increased longer payback period. Please also find out other maintenance costs.
Monday, December 17, 2012
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