German Companies With Low-cost Plans to Develop Solar Power PV Market in Tanzania

According to "The Guardian" reported on February 22, the German company Mobisol Tanzania said, just need 999 shillings per day, Tabora, Dodoma, Kagera and coastal areas and other remote areas families of Tanzania can install German solar power system. The program was officially launched on 21 in Tabora region.

The company marketing Manager said , which plan aims to improve the non-energized areas ten thousands of Tan Sang people life. This system initially capacities are 80 watts, can be upgraded to 120 watts, 200 watts.

The solar PV system can provide lighting for the entire family, powering televisions, laptops, refrigerators and mobile phones. By the end of 2015, Mobisol has already provided 35,000 tanzanite households with green reliable solar power light, the company's goal is to provide electricity to millions of low-income families, to promote economic and social development, as well as to make contribution to global environmental protection.

Power by Sarah Hwong, Mar.23,2016

Hospital roof is also used photovoltaic power station, Lanxi Zhejiang photovoltaic power plant success in the grid and trial operation

In early January, Lanxi City Zhejiang Province People's Hospital which roof distributed solar photovoltaic power generation project closing and into grid, the hospital became the first grid connected power generation unit in Zhejiang health system Province distributed photovoltaic power generation project's. The roof photovoltaic power station panels areas are 3000 square meters, power generation capacity are 245 kW. After the project is completed, the annual generating capacity are about 30 million kilowatts, can save100 tons standard coal , carbon dioxide emission reduced 260 tons.

January 14, Lanxi electricity sector staffs were in Lanxi City People's Hospital rooftop solar PV power plant inspection devices. Which solar light will be more convenient for the hospital .

Posted by Sarah Hwong, Mar .21,2016

Yiwu Zhejiang distributed home roof photovoltaic power plant rapid growth

In 2015, Yiwu City, Zhejiang Province, "residents roof solar power system station" rapid development, a total of 137 households photovoltaic power users are incorporated into the local power grid, roof photovoltaic power generation capacity reached 3518.31 kW. In recent years, Zhejiang Yiwu grasp the development opportunities of countries encourage new clean energy, actively promote home distributed photovoltaic power generation system used in the life of urban and rural residents.

On February 25th, staff in Yiwu temple town of Xintang Village resident Wang Xiansong’s roof to debug grid photovoltaic power generation equipment. They really can use the solar power light for their home Appliances.




Posted by Sarah Hwong, Mar. 21,2016

TianJin West Railway Station Roof Solar Power Green Energy Services Surrounding

Reporters learned from relevant departments, has been organized by the City Development and Reform Commission and other multi-sectoral assessment of Tianjin West Railway Station solar photovoltaic power generation project, has now entered the commissioning phase, will soon put into used, the system in Tianjin West Railway Station platform stuff on 36,000 square meters of ceiling the laying of solar panels, green energy will be provided to West station area and the surrounding residents.

It is reported that is also the city first 10 kV-megawatt solar photovoltaic power station. Solar photovoltaic power generation system is divided into off grid solar system and on grid solar system operation in two ways. There are areas in the public power grid, photovoltaic power generation system connected grid operation, eliminating the need for off grid solar power system must be part of the battery, not only greatly reduce the cost, but also higher power generation efficiency and better environmental performance . This formal grid Tianjin West Railway Station to connect grid using operates.


It is assumed that the power project feasibility study and design of the Third Railway Survey and Design Institute experts, the project is for building integrated solar photovoltaic power generation system, photovoltaic tile on the platform canopy, angle and canopy consistent components, the total area reached 36 thousand Project construction scale is about 1.9 MW, including glass, amorphous silicon component design installed capacity are about 1.3 MW, flexible amorphous silicon component design installed capacity are about 0.6 MW. The project is the first 10 thousand megawatts solar photovoltaic power station in Tianjin City, also promote the development and utilization of new energy city landmark project. The project combined with the construction of a building of TianJin West Railway Station, all project components are laying in the West that the platform canopy top, equipment room set basement in the railway station. After the commissioning of the equipment, not only can provide power for the station itself, even through the grid to provide residual power for other places.




Powered by Sarah Hwong, Mar.15,2016

9 mm Thick Solar Power Generation System

Solar power is not an exciting new invention (solar panels in a more efficient still looks like a solar panel), but the new solar power system developed at the University of Michigan will definitely surprise. Its volume is much smaller than the existing similar systems about1000 times (only 9 mm3), but the processor, the solar battery and storage battery are independent, the researchers say, if not because of battery always depletion in a few years, this system can operate "almost always". More importantly, they said, the system is also capable of generating in motion, with light to power , this means that it can provide power for medical implants, this application still do not know what time can be achieved, but the developers are busy doing further research for its commercial production. Below is the system Write.

Powered by Sarah Hwong,Mar.15,2016

Shigatse Tibet Solar Photovoltaic Power Station Grid Operation

Shigatse, Tibet solar photovoltaic power station the first-stage project completion and incorporated into Tibet power grid operation. Xinhua News Agency reporters Tao Wen taken July 5th, several workers are in the Shigatse, Tibet solar PV array construction. On the same day, Tibet Shigatse solar photovoltaic power plant the first-stage project completion and incorporated into Tibet power grid operation.

  
This is Shigatse Tibet solar photovoltaic power generation board array (July 5th photo)


On the same day, Tibet Shigatse solar photovoltaic power plant the first-stage project completion and incorporated into Tibet power grid operation. An annual generation capacity of the solar power plant are about 2023 million kilowatts, which can meet the Shigatse City 10 million farmers and herdsmen electricity demand, not only greatly improved Tibet the shortage of power supply, voltage instability situation , each year also to save standard coal 9000 tons, to reduce emissions of greenhouse gas carbon dioxide are about 17820 tons, is the current Tibet grid to run the largest solar photovoltaic power station.

Posted by Sarah Hwong,Mar.14,2016

British Catching Water Station Wave 6.3MW Power Plant System will be Completed Soon

Installation solar power systems in the water not only is Japan, but also British to catch up with this wave fashion. A 6.3MW water solar power plant will be completed to enable an artificial reservoir on the outskirts of London, before Kyocera Chiba, Japan 13.7MW water power station completed, London this Water power plant will be the world's largest water power station.

British《Guardian》 reported that this water power station floating on London suburbs Elizabeth II Reservoir Thai Well Shiwoerdun (Walton-on-Thames) . The plant will use more than 23,000 pieces of solar panels, go through five years planning, and will be completed in March this year , at a cost of 6 million pounds. The plant produced electricity will be supplied to operate water treatment plants, for generating clean drinking water to the Greater London area and South East England region nearly 10 million residents. There are other parts of the power will be supplied directly to the surrounding residents. Its annual generation capacity suppy for 1,800 households of UK residents.

Thames Water Company is the holder of the water solar power plant, Lightsource Renewable Energy is responsible for developing and engineering construction. Thames Water Conservancy energy manager Angus Berry said the plant will become the world's largest water floating type solar power station, and hope to encourage UK and all around the world to put into the same power plant construction. Berry said, floating in the reservoir of Elizabeth II solar panel about standing in the water reservoir 6% area, no impact on the local ecology; however, berry also pointed out that in the future development of other water power station, according to local conditions to evaluate.

Britain decided to cut subsidies for solar and wind power, but Elizabeth II reservoir power station is not affected. As for other later developed solar power station, Berry admits, also need understand the economic benefits before deciding whether to advance development.
Kyocera and Century Tokyo Leasing through their jointly established subsidiaries "Kyocera TCL Solar" develop a 13.7MW water floating solar power plant in Chiba Prefecture, it is expected to be completed in 2017. Before The water Chiba station completed, the UK Elisabeth reservoir power station will occupy the throne of the world's largest water solar power station.




Posted by Sarah Hwong,Mar.11,2016

New Energy Vehicles, a New Deal to Sichuan Enterprises Eagerly Looked Forward to Landing as Soon as Possible

2016 Spring Festival, the production of new energy vehicles in January experienced a brief decline in chain growth, the policy has ushered in the warm "spring."

February 24, the State Council executive meeting to determine further measures to support the new energy automotive industry, in order to optimize the structure and promote green development. Among them, first of all to accelerate the realization of a revolutionary breakthrough in battery power; the second is to speed up the charging infrastructure; Third, expand city bus, taxi, sanitation, logistics and other fields new energy vehicles the ratio of application; four is to enhance the quality of new energy automobile; Fifth, improve the financial subsidies and other support policies, shall supervise the implementation of the requirements of the limit line of new energy vehicles purchase, get rid of local protection, against "cheat up" behavior.

Faced with a New Deal, new energy enterprises all applaud, March 1, after an interview with reporters in the province of some of the new energy-related companies find that their policy on the ground, there are some aspects of the implementation of recommendations.


Proposal one: charging pile can be built public platform

Unlike the past, the five measures proposed in this meeting, subsidies for new energy vehicle is no longer the focus, more attention to the core components of new energy  are battery breakthrough and the subsequent construction of infrastructure charging piles, which has been hampered the rapid development of new energy vehicles "blocking point." As the province's largest companies charge pile, Sicuang Taitan Hout New Energy Automobile Co., Ltd. whose Executive General Manager Jingang Tang was inspired, he said, before some subsidies were basically in construction number to subsidies, causing the consequence of built charging piles were not really into used, serious depletion device. The proposed incentives will be charged an amount of subsidy policy reference, and can regulate the behavior of many companies cheat subsidies. Meanwhile, the state proposed service charge waiver fee, which is currently trapped in the profit model of charging pile enterprise, it is no doubt is a good thing. 

But Jingang Tang also said that despite the policy incentives, the popularity of charging pile is still facing the charge pile body construction and funding two major bottlenecks. He told reporters that want to in public parking area, residential parking and so on has a public role in the promotion and have the practical effect to construct charging pile , currently the main building is not very clear. Since the government, owners, developers, property companies and grid  enterprise have no clear responsibility and rights, the status quo means that anyone can build up, the actual result is anyone who hard to build. Charging pile construction requires a public resource platform, so as to facilitate the people to charge to settlement. The public resources platform need the government to come forward selection and construction. Once common platform completed, all of the charge pile business can enter, we concerns charge fee billing can be resolved. After charging consumers can choose two convenient ways to pay , one is similar to bus card of prepaid card, the second is the direct payment network platform, businesses only need to settle with the platform. 

Proposal two: local subsidies can speed up the national introduction of this policy is a combination boxing, can be regarded as the most perfect, the most effective policy "

Chengdu Arcam New Energy Automobile Technology Co., Ltd. Whose deputy general manager Yongjun Fan, for the new energy policy over the years have learned by heart. And this combination boxing, that make Yongjun Fan most exciting is to expand the application proportion of new energy vehicles, city bus, taxi, sanitation, logistics and other fields, as well as relax the limit line restriction and other control measures, to overcome local protection  and against "cheat up" behavior. 

Yongjun Fan admitted that, in fact, new energy logistics vehicles unlimited on this point, Chengdu in the country is doing the best and most thorough, but local protectionism in many cities are still existed, set various thresholds, subsidies only for indigenous vehicle models. Whether the policy of the central overall landing, need to take some time to see.

In fact, enterprises are facing difficulties far more than that. Yongjun Fan as Chengdu For example, local government subsidies for new energy vehicles were granted after the state subsidies end of the liquidation. In Arcam new energy logistics vehicles, for example, each vehicle can enjoy local subsidies RMB 81,000 , according to the 1000 pcs sales year, the total amount needed to advance the enterprise to reach RMB 81 million, while companies only wait until next year June, July can receive local subsidies. Enterprise has been paid this subsidy in advance, advances up to a year and a half period of time, for any pressure enterprises are very large. Meanwhile, the charge pile construction is seriously lagging behind the policy, the enterprise in order to open the market, before the policy introduction have advanced a lot of money to build their own charging equipment, which no subsidy policy. Mr. Fan said: "We sincerely hope that the local government in the new energy policy when landing can take this into account, given appropriate support enterprises."

< Distributed Photovoltaic Power Generation Project Service Specification > Has Been Included in the Approval Stage

Currently, many domestic photovoltaic installation enterprises in terms of technology or professional degree more or less exist some problems, such as some free team did not receive professional photovoltaic power installation training , and the safety of power station operation will be hidden some dangers. Therefore, the domestic first involves distributed Off-grid solar electric power system project whole process service behavior of local standards -- < Distributed photovoltaic power generation project service specification > draft has been completed and is entering the approval stage. The standard are by the Shanghai Energy Conservation Institute of engineering and technology, Shanghai city quality supervision and Inspection Institute of technology, nearly more than 20 photovoltaic enterprise and industry technical experts to jointly participate in the drafting.

Because of the distributed photovoltaic power generation projects long-term lack of construction standards, resulting in the preliminary design of the power plant is not standardized, construction of non-compliance, even further lead to the selection can not be effective and accurate analysis of a range of issues in the post-project operation and maintenance process.

At the same time, due to the lack of standards, resulting in non-standard of acceptance check of government investment, enterprises to invest in the construction of no basis, have seriously affected on distributed photovoltaic industry in our country healthy and orderly development. Therefore, the standard service of distributed PV projects needs to be established.

The industry experts, from the industry standard level no criteria to guide the industry to solve the chaos, standardize the behavior of distributed photovoltaic power generation engineering enterprise services, improve service quality, and effectively protect the interests of all project owners and investors and so on.

2016 Forecast Three Twists and Turns of Solar Photovoltaic Industry

In 2008, the domestic solar photovoltaic industry experienced a rare era, the first PV market prospects have a good future, along with the army to follow suit entered the period of peak, immediately usher is Europe and United States and other various double reverse, the depreciation of the euro, which for the fledgling domestic photovoltaic enterprise is simply to add insult to injury, through so many twists and turns, Energy Bureau for supporting photovoltaic industry is also gradually increased, domestic PV is finally ushered in the spring.

2016 solar PV industry forcast

The haze from the beginning to now are almost every day, has also been used haze life, environmental pollution can be imagined. In 2015 two sessions of environmental governance is also included in the proposal focus, perhaps influenced by the two sessions, 2015 the National Energy Board for the solar photovoltaic industry fully liberalized policy, would not have scale limits, arbitrary to install any Offgrid solar power systems for solar powered light, and there is local self-declaration.

From this point of view, 2016 domestic solar PV should be a relatively benign development trend.

Posted by Sarah Hwong, Mar.8,2016

Slow Factors of Target implementation for Distributed Solar PV Power

Solar PV power to alleviate the increasingly serious energy crisis and environmental problems has a great important significance. Although have a good prospects ,the policies landing are difficult, slow progress in construction is currently the status quo of the domestic distributed PV market.

Recently, in the helding IntersolarChina PV industry international forum, the national development and Reform Commission, Energy Research Institute researcher Sicheng Wang said currently distributed photovoltaic in China still faces seven big problems, low yields, qualified roof hard to find, financing difficulty, implicit transaction risk, access to the grid is not smooth, registration is imperfection and the long-term stability of the load restricts the solar PV industry development.

Currently, in China to develop distributed PV only have one road of "self-occupied", and the proportion of electricity account for 80%, at the same time the price of that building are higher.

Decided Our distributed solar photovoltaic power generation project benefit quality factors, are local sunshine conditions, power generation uses, installation cost, local subsidies supporting and local electricity charge. Thereinto, By regional factors which have significant influence are mainly the sunlight conditions and local subsidies supporting. The sunshine condition or that called sunshine long directly related to output. And differences in local supporting subsidies will be a big difference for the time of investment back

In this regard, the state is likely to be some adjustment of photovoltaic industry support policies, National Energy Bureau are discussing and researching distributed generation (DG) support policy adjustment scheme. Distributed solar photovoltaic power relations not only is the people's livelihood, but also related to national conditions, countries should utmost support. With the local subsidy policy launched successively, estimated photovoltaic power generation rate of return will be higher, large-scale off grid solar power system to achieve the goal will not be too long.

Solar Power System to Meet the National Conditions of the Highlights

A development of industry don’t be separated from consumer recognition and affordability, take solar power system why is popular in Europe, the main factors is the states pay more attention to environmental pollution governance, and through the attractive subsidy policy to encourage the public to recommend the solar power market application. Second is European residents whose villa residential environment with available resources. 


Nowadays, solar power system have been gradually hot up in the domestic, the resource and environment of the domestic photovoltaic, most development potential of the highlights are family and distributed solar power generation, the two forms does not need too much capital investment, the ordinary family general in the economic can bear, and the government will continue to increase subsidies for solar power for light , from the point of view of distributed solar power system to a number of small and medium-sized enterprises is quite attractive, idle workshop roof and factory can make good use of, although cannot solve a large number of industrial electricity, lighting electricity also can save a lot of cost.


It is reported that the developers for the future real estate development will be reserved the installation of solar power generation equipment, every household in the future are likely to use their own solar power generation system.

On the Roof of the Photovoltaic Business Opportunities, Chinese Dream

Recently, China lowered GDP growth triggered a lot of discussion, a lot of people on the Chinese economy whether is in the healthy operation of generating a lot of questions, even lose confidence in the future economic trends. In this regard, "Economic half-hour" deep into the first line of the socio-economic production, to present you the real Chinese economy. New energy solar photovoltaic power industry is considered to represent the new economy, but mention the photovoltaic industry and solar photovoltaic power generation, many people first reaction is this vocabulary of lower price competition, export-restricted and so on. If someone tell you, there will be a lot of families to install their own roof solar photovoltaic power systems in the future. Lying at home, not only can freely free use electricity, and even to use up the electricity sold to the national grid, do you believe it?　

First,Their power for their own use，rooftop solar power Supplying the national grid

Chunjiang Zhao is the director of Solar Energy Research Institute of Shanghai University of Electric Power, 2006 year he set up 22 pcs solar panels on their own roofs, built the first China personal home solar power station.

Chunjiang Zhao said his home solar power system is equivalent to a small 3 million watts of power plants, although compared to the hundreds of thousands kilowatts of large thermal power plants, it is very small, but his home solar power system is a very complete small power plants, from his home and sent to the conventional power plants firepower AC 220 volt power to issue and quality are the same.

As early as in a few years ago, Chunjiang Zhao is in their own roof built solar power station. 2012 years after he moved to the new home, then built a a new roof solar power station. Chunjiang Zhao said, in fact, family photovoltaic power generation principle is extremely simple: after the sun light irradiation, the series of solar battery assembly send out a DC power, through the inverter into 220V, 50Hz current can directly use. While the power equipment is particularly simple, only consisting of solar module, inverter, AC protection switch and a bidirectional ammeter.

Chunjiang Zhao believes that the future of these devices can be packaged together, like to buy a TV set, wait for professional personnel to install, we only need to calculate the site.

Family photovoltaic power generation cost is not actually high, Chunguang Zhao studied in Japan for many years, 2006 before he come back, Japanese family power station has reached 60 million. At that time caught up with Shanghai proposed 10 million solar roofs plan, annual household electricity in Shanghai hope to reach at least 330 million degrees. After returning Chunguang Zhao flew into RMB 120,000 to buy the solar power system components,. 2012 years he moved to Xinzhuang new home, also built their new photovoltaic system components and with the integration of the roof construction, with a total investment of only RMB 50,000.

Chunjiang Zhao now the solar power generator is 3.5 kilowatts, is theoretically per hour capacity will reach 3.5 degrees. Over the past year, this new system is generating more than 4100 degrees, his wife happily told reporters, now the home appliance use electricity casually, before the tank, air conditioning and TV is used with the mark, and now all opened. Before electricity need to be paid, in order to save one family all crowded in a room blowing air conditioning, but now no longer. She is feeling to feel the benefits of solar power, which makes their quality life has been a leap increase. In addition to their own home use, the remaining about 2000 kwh of electricity can enter the national grid. 

Chunjiang Zhao pointing to their own solar generator said, the weather is good today, now the power is 2500 kilowatts. Less than 11:00 has made more than seven degrees electric, today at least to generate 20 degrees, even are likely to 22-23 degrees electricity.

Now speaking of family photovoltaic power generation, Chunguang Zhao and his wife are smile, but 2006 when newly built home power plant, has attracted a lot of trouble. Remember when power station was built, the electricity sector were soon at the door, not to learn, but to send electricity payment bill. That had made Mrs. wife unhappy, she felt her husband lie her for their own power.

Because Chunjiang Zhao had promised his wife, installation home solar equipment, electricity almost don’t pay money. The power company who told them that electricity did not decrease, but also pay more than RMB 100 per month. Originally, this solar power system which electricity didn’t used up, then into the grid daytime. At night the station can not generate electricity, to get electricity from the grid. At that time, the power sector was one-way ammeter, unable to identify the direction of current, which causes both the current inflow or outflow, will be counted into electricity. That means more power generation, flowed into the electricity would be more ,so more payment. Moved to Shanghai Xhenzhuang new home, Chunjiang Zhao learned a lesson, directly to the Power Grid Corp apply for the installation of the bidirectional ammeter. 

Chunjiang Zhao, pointing to the bidirectional ammeter carefully explain to reporters, that when the meter display is the reverse active, means it is the outward transport power, is in delivering power to the grid. Now the reverse power is 0.05 kilowatt, home electricity is very large, TVU part are for home use, leaving only 0.05 kilowatt for outward transporting. Power reverse power is 2004.37 kW, the meaning is already to grid conveying the 2004 more electricity.

A little more than 2004 degrees, this is a total number of transmission power to Power Grid Corporation when reporters interviewed Chunjiang Zhao. If with their own electricity, then from 2006 to now, Mr. Zhao two sets of home solar photovoltaic power generation system, have a total generating 2.5 million degrees. The electricity in addition to the majority for home use, the rest have all been conveying into the grid.

Chunjiang Zhao said that before January 1, 2013, his two power plants generated the electricity are all free fed to the national grid. After, power grid company and he signed the network agreement, provisions of the electricity base price is RMB 0.4773 per kWh, but subsidies this piece has not clear. Although the power grid company year after year are talking about green electricity buyback, the price has not been finalized. Now the repurchase is not a problem, more important is to introduce a specific price policy. So, how much is the tariff exactly? Mr. Zhao is still waiting for relevant policies and implementation.

Beginning in 2013, Chunjiang Zhao whose home power also began to re accumulation, waited for the settlement. He also calculated an account, in accordance with the prices level of Shanghai, the investment a kilowatt of power plant is about 1.3 million, according to Shanghai sun's radiation, 1000 watts of annual power generating capacity is 1050 degrees, and the price of Shanghai should be set at about RMB 1.4, such 8 years could be guarantee recovery. Even countries bring the price down to RMB 1.25-1.3, 10 years can also be completely recycled. So, if the network price is the right, home power generation prospects are very broad.

Second,100,000 Solar Roofs Plan to implement Decade, Shanghai only six families to attend

Use the roof of home electricity, the remaining can send into the grid, but they did not think it would like to pay to the grid, Chunjiang Zhao embarrassing encounter were laughed by many people. 2006 Shanghai raised 100,000 solar roofs program, after five years the implementation of response was still a handful. Of course, that led to this plan failed for many reasons, the most important factor is easy to generate electric but hard to sell, but now the situation is changing. This year, March 19, Shanghai resident Jilin Chen from Power Grid Corporation got RMB 116, become the first person to self-built power plant in Shanghai to earn "extra money" .

Jilin Chen’s home power generation stations built in the third floor building on their own balcony, handmade wooden support above 11 solar panels, the panels are to be linked together, through the inverter to adjust and stable, the maximum output power is 2.5 kW and is 2.5 degrees per hour electricity. Mr. Chen told reporters that on and off grid solar power system device procurement were RMB 10000, plus the inverter assembly is total of RMB 15000, the cost is not high, now many families can accept.

Today, Shanghai's weather is cloudy, basically there is no big sun, in such a light conditions of power generation amount can reach 8.2 degree. If the weather is good, every day can send 15 degrees , every year can generate 2500 degrees. Remove their own electricity, the remaining electricity through bidirectional measurement meter input state grid, In this sense, Jilin Chen regard him as a supplier of power grid.

Then on March 26, Jilin Chen got the first sum subsidy from power company . The residents electricity balance sheet, is the collection of receipt display: Shanghai residents spontaneous self power the remaining send into grid which electricity settlement price standard temporarily is RMB 1 kwh, waiting for the relevant state policy clear, approval in accordance with the national Internet price to liquidation, retreat more fill less. Mr. Chen told reporters that contract temporarily according to the benchmark price, in fact, execution is by RMB 1 kwh because the power grid companies have no right over desulfurization benchmark electricity price contract on display, then they gave him fill RMB 127 price difference.

Get RMB 1 per kWh on-grid power tariff, Jilin Chen saw an opportunity, he told reporters that such a tariff, seven years will be able to recover the full investment, the life of photovoltaic power plants are more than 25 years. He gave his family a calculation, in previous years, a year in use electricity at home are about RMB three thousand, now his family installed a 2.5 kilowatts of photovoltaic power generation device, a year the basic unit of electricity can generate 2500 degrees, that is probably income RMB 2,500, can offset each year to pay RMB 3000, he can save 70% of electricity annually.

Now, Jilin Chen are intending to put the unused roof to install solar panels, expanded 2.5 kwh power to 3 kilowatt hours. So in addition to their own electricity were available, the annual power generation also make some money. He felt under this policy remains unchanged, this model can also be continuously replicated copies. He pointed to the nearby villa roof said, now there are a lot of empty roof, to install solar power system for electricity on the roof which market potential is huge

What Kind of Distributed Solar Photovoltaic Roof are Most Valuable

" Solar PV power industry next era should be called 'pro-roof resource is the king'." Co-director of Hangyu Technology Co., Ltd. (hereinafter referred to as Hangyu energy) Yang Liu believes that the scarcity of resources is the pain point of industry development, who will occupy the first chance who can solve it, and the future PV market will not lack of polysilicon, nor photovoltaic modules, but the roof. 

His judgment is based on an industry consensus: China's distributed solar PV market is heating up. The so-called distributed photovoltaic, usually refers to small-scale photovoltaic power generation system( off grid solar power system) is installed in home or residential commercial and industrial rooftops, courtyards, to the owners of self-occupied, remaining electricity access to the grid operation. In the photovoltaic market started earlier in Europe and America, it is the main way of distributed photovoltaic solar energy utilization. Nearly nine out of Germany from distributed solar photovoltaic power generation system, the number of family homes roof power plant over one million; Last year the United States added new distributed photovoltaic power generation capacity has reached 2.2 million kilowatts.

In China, large-scale centralized ground station is still the main way to achieve solar photovoltaic power generation. Up to 2014, China PV cumulative installed capacity of 28.05 million kilowatts grid. Among them, the ground station are 23.38 million kilowatts, only 4.67 million kilowatts of photovoltaic distributed. However, in view of land resources, the ability to send power grids and national subsidy financial pressure and many other constraints, many people in the industry have expressed similar views to the author, that the development of the ground station will gradually slow down over next three years, and various distributions the formula will be the development direction.

 

"From an investment point of view, the ground station can last two or three years." In the GCL New Energy Holdings Limited (00451.HK, hereinafter referred to as GCL new energy) in the photovoltaic power generation project investment Shanzhong Zhang think that, PV application market the determining factor is financial leverage. "It is a hot point of ground station, at their own expense by 10%, someone take 90% to capital. Although distributed project now unable to do, all the bad factors will improve over time. We look for the market will be forced to the roof.

With more and more enterprises and funds investing in distributed solar photovoltaic, roof, especially those who are most power and profit potential high quality roof, just as land is becoming parties to compete for the subject. But what kind of roofs are most valuable?

 

Big business Roofs are rarest

Since human Jielu to live, the roof is not new things, but people take it from the photovoltaic various grades and ranks

"Duddy, I have roof resources, let's look at?" this is Yang Liu the most afraid to hear words, because many people mistakenly think that the "roof" is equal to "project". And for professionals, choose roof as like choose beauty.

Economy is the primary criterion for evaluation rooftop PV projects. Roof, whose owners units best are the stable operation and strong big power to the roof. High energy consuming owners to install distributed solar off grid system, to achieve to  maximize the economic benefits of the project. National policy to encourage power users in accordance with the "spontaneous use, grid allowance" approach to building distributed photovoltaic power generation system. The NDRC price department 2013 No. 1638 documents stipulate, to distributed photovoltaic generating electricity subsidies policy, subsidies standard is RMB 0.42 per kilowatt hour; Among them, occupied the remaining power grid, by the power grid enterprises in accordance with the local coal-fired units benchmarking Internet acquisition price.

If business owners can use all photovoltaic self-occupied, it will be the largest economic investment. Because according to the current policy, self-occupied part of the earnings-per-watt is equal to the original unit price of electricity plus state subsidies RMB 0.42, while the online portion of the earnings power more than just benchmark electricity price increase state subsidies, currently around commercial and industrial electricity prices are far higher in feed-in tariffs.

But the scale of development is another important index to distinguish the quality of the roof. The scale 1 MW project compared with 5 MW project, two pre development costs are basically the same, investors certainly love big roof project.

Different Geographical position can also delete a large part of the roof. PowerOAK family photovoltaic a person in charge told reporters, the current domestic suitable for large-scale development of distributed PV provinces are rarely, one is in the provinces of Shanghai, Zhejiang and other places have high subsidies; the other is the local power supply tension leads to commercial and industrial electricity prices high provinces, such as Guangdong.

Therefore, in the eyes of distributed PV developers high quality roof need to contain the following characteristics: owners stable operation and high power consumption; long period existence of roof; suitable for developing more than 5 MW large roof solar power station; high local subsidies or local industry and commercial with high price. Accord with above standard of roof resources are very scarce. "Most of the best roof are state-owned enterprises, central enterprises and large listed companies, small private enterprises dare to guarantee stable operation of 20 years is not much, not to mention the meeting other conditions." an investment industry sources to the author said.

The roof of various grades and ranks

Small area roofs, solar photovoltaic power generation can provide attractive business owners inherently inadequate. These roofs can try to re-rent pack make up large projects. PowerOAK is doing that.

From the perspective of the economic benefits investment, the small scale roof still does not have the attraction. For example, IKEA Beijing Quaternion Bridge shop which roof power station the annual average generating capacity are about 30 million degrees, barely enough to meet the market 80% lighting power supply system, the entire Mall consumption is a drop in the bucket. But similar like IKEA companies test photovoltaic roof, even more to see solar PV power as a green energy behind the concept of environmental protection, which to boost corporate influence, shaping a good social image have a positive effect.

There are some people in the industry believe that only a small rooftop distributed PV on behalf of the trend of development. Yang Liu predicted that, in five years distributed PV market will be hot competition for resources roof scale 1 MW or less.

This judgment from foreign experience in the development of photovoltaic PV market, has always been from easy to difficult, from the depth of large-scale to small-scale distributed . But China’s situation is different, the small roof era needs more time. The current trend is visible from the scale effect was significantly depleted but soon developed a large-scale ground station resources to the same large-scale distributed projects. To distributed project about large-scale agricultural photovoltaic project Zhang Shanzhong told the author that large-scale agriculture, fishery and photovoltaic complementary projects, can extend large-scale ground station investment heat 1-2 years. Such projects currently classified as distributed, but its construction business model and business investment model and the large ground station is not very different, are the grid, with full electricity sold to the grid, obtained subsidized price revenue. This kind of distributed project business model are relatively mature, easy to attract investment. 

China's Solar Photovoltaic Products and Grid Standards will Double Upgrade

According to the different development stages of solar photovoltaic power technology and products, adopt different market access standards; take not mandatory for optical fiber communication, does not require the low voltage ride through or require the grid to detect simplified grid measures to ensure the smooth distributed photovoltaic grid. In June, the photovoltaic industry new policy taken place frequently, targeting the overall industrial technology upgrade slowly, the development of grid technical standard missing. Recently, the National Energy Bureau, Ministry of industry and information technology, CNCA jointly issued "About the promotion of solar photovoltaic products advanced technology application and industrial upgrading opinions (hereinafter referred to as the" opinions "). In addition, the project of “ Research on key technical standards for grid connected photovoltaic power generation”in early 6 has been acceptance inspection. From the two aspects of the manufacture and application of the market, photovoltaic technology products and power grid access standards in China will double upgrade.

"China's photovoltaic industry scale ranks first in the world, behind this aura rely on the size of benefit, rather than technical and quality benefits. If the PV industry in China is still playing 'world's factory' role, the road will be unsustainable in the future. "China renewable energy Society of vice president Meng Xiangan in an interview with the author said that, China's photovoltaic technology and industrial product applications urgent need to upgrade, this is a" must do it "thing. The PV market access standards for circulation of progressive mechanism, which means it will be a continuous and long-term photovoltaic industry knockout.

The first round standards are not high and will be circulation in the future

In the photovoltaic market access standards, "opinions" on the photoelectric conversion efficiency and the decay rate of two indicators put forward the quantitative criteria. Among them, the solar photovoltaic power generation projects newly purchased PV modules should meet the Ministry of Industry and Information Technology "PV manufacturing industry norm conditions" (2015 present) Related products technical requirements, such as photoelectric conversion efficiency of polycrystalline silicon cells and battery pack assembly, respectively not less than 15.5% and 16%,HCPV module photoelectric conversion efficiency is not less than 28%.

Data show that, currently China's large-scale industrial production of monocrystalline silicon cell photovoltaic conversion efficiency are about 19%, the photoelectric conversion efficiency of polycrystalline silicon cells are about 18%. "The decline in the conversion efficiency of the battery components based on the data were about 2 percentage points. Not difficult to see," Opinions "put forward by the first round of 'threshold' is not high, China's photovoltaic manufacturing enterprises are generally reached standard." Mengxian Gan said.

In order to further improve the relevant enterprises to establish awareness of the technology advantages, < Opinion> also clear, National Energy Bureau each year will arrange size of specialized market plans to implement the "leader", requirements for the use of advanced technology products in the project. It is reported that the "leader" plan requirement on advanced technology products more high, such as the photoelectric conversion efficiency of polycrystalline silicon solar cell components and monocrystalline silicon solar cells components reached 16.5% and 17%.

"As like the currently China to boost distributed solar off grid system applications in advance demonstration area, to carry out the 'leader' program, and more higher demands for its technology products, to a certain extent, is to give the latest PV technologies and business models to establish use Referring to the benchmark, accelerate backward production capacity out of the market , advanced technology products to market faster, and promote the photovoltaic industry overall rapid technological upgrading. "Mengxian Gan said.

It is worth noting that, "opinions” is put forward in the standard photovoltaic products market access at the same time, also attached a sentence: the index will be adjusted according to the industrial development.

"Gradually establish a market access standards for PV cycle progression mechanisms, photovoltaic technology will accelerate progress and industrial upgrading." Mengxian Gan pointed out, according to the different stages of the development of photovoltaic technology and products, adopt differentiated market access standards, will support in favor of advanced technology products to expand the market, accelerate the elimination of backward technology products, standardize photovoltaic technology and quality supervision management. According to his analysis, the next photoelectric conversion efficiency of polycrystalline silicon and monocrystalline silicon modules battery components market access standards will increase 0.3% to 0.5% per year.

PV grid standard system to speed up the improvement process

Upstream and photovoltaic manufacturing photovoltaic products due to technological upgrading slow, and lack of core competitiveness in international markets, like photovoltaic applications for domestic market, the lack of grid standards, has become the main obstacle to promote its further development.

Grid technology standards is to protect the photovoltaic grid connected reliably, the foundation of safe and stable operation and high consumptive. I understand that, on June 3, "study on key of technical standards for grid connected photovoltaic power generation” project through acceptance. This means that, to improve the standard of the photovoltaic power generation system will be set up in China, for China on grid solar power system plant construction, acceptance, operation and maintenance to provide comprehensive guidance.

Participation and commitment of the project research China EPRI Guoqing, deputy director of the Energy Research Institute in New interview with this reporter, said, "PV gateway and key technical standards study" by the China Electricity Council, led the project to build of China's photovoltaic power generation and network standards framework, including universal basis, survey and design, construction inspection and quality assessment, maintenance and operation of the network and detect four broad categories of more than 80 criteria. The project also developed in line with China's national conditions of the photovoltaic power generation and grid national standards 13, 11 industry standards, have been published or submitted for approval.

Guoqing He told the author, for large terrestrial photovoltaic power plant,the grid characteristics and wind have a lot in common, so the formulation of the standard photovoltaic power station to make full use of the experience and lessons of the wind turbine standards, < photovoltaic power station is connected to the electric power system technology regulations > in the active power change rate, low voltage ride through (LVRT), grid adaptation, with the same also different, highlighting the photovoltaic short-time power changes faster, the inverter control performance is better. 

"With the wind power mainly centralized development is different, photovoltaic power generation market have a large number of distributed development ways, because of the distributed development over a broad area, a single small capacity, less investment, high standard grid will greatly increase the cost of grid. “The provisions on the access distribution network technology” said for distributed took not mandatory for the optical fiber communication, does not require low the voltage crossing, does not require the grid detection measures to protect the simplified grid, distributed photovoltaic grid connected smoothly." Guoqing He introduced. According to the information monitoring, because don’t require distributed optical fiber communication network on the volt, brings great difficulties to the development of distributed PV grid monitoring, currently distributed PV are unpredictable, not monitoring, uncontrollable state. When the distributed solar PV power capacity reaches a certain proportion in certain areas, will be running on the grid with a greater risk.

"To this end, we have launched a distributed photovoltaic power grid control technology research and operational forecasting, a subregional, meshed manner distributed photovoltaic forecasting and monitoring, it can achieve one time 15 minutes of running information collection and storage , greatly improve the controllability of distributed PV understood. "He Guoqing said that, at present the technology has been in Beijing and Jiangsu have demonstration application, after further maturation can be applied across the country, not only help to improve the running stability of the grid, further It can be used to assess the quality of supervision and photovoltaic technologies.

Posted by Sarah Hwong, Mar.1,2016