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

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.

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. 

Establishment of Hsinchu Solar Photovoltaic Driven Group In Response To the New Government's New Nnergy Policy

Another local government of Taiwan declared investment new energy development. Recently, Hsinchu city council has approved < City pipe public houses set solar power system standard rent management measures >, will be the city set up solar driven group, assist the private sector with solar power generation system.

Hsinchu is Taiwan technology R & D and production center, many solar companies stationed. Hsinchu Mayor Mr. Zhijian Lin said, 2015 Taiwan  solar photovoltaic output can be the contribution to GDP of NT $15.3 billion, but production products really have 97% export. In the new government shouted 2025 installation 20GW solar, 2025~2030 non nuclear homes, the local government must be stepped up to put forward the corresponding policy, and jointly promote the development of solar energy, to reach the goal.

Through the establishment of new regulations, Hsinchu Government will be able to more efficient use of the city under the jurisdiction of public buildings, promote solar and other renewable energy development. At the same time, the city will actively contact solar owners, organized seminars and start tutoring mechanism, to help people use solar power generation system. Mr. Zhijian Lin said, Hsinchu City " to promote solar photovoltaic group " by all at the main responsibility, meets regularly to review the progress, and view the initial results. After 24th standard rented premises by the public way, related work will start as soon as possible.

In the future with the release of state-owned land, to create new energy industrial ecology of the new government policy, Taiwan off grid solar power system industry each year is expected to be 15-20% growth. As a science and technology center in Hsinchu also hope through the implementation of the policy in place, using their own industry niche, for the city and the public to create a better living environment and economic development.



Posted by Sarah Hwong,Feb.27,2016

Africa Solar Football Stadium Can Also Power Generation

Facing the renewable energy to provide unlimited possibilities, Africa has been awake, the African Union will invest $200 million for these solar power system in the next ten years. In East Africa, according to the need to buy solar service has gradually become mainstream. In West Africa, everything is still in the experimental stage. More characteristics of the test project is one of a solar football -- apart from solar outside, it can use playing football to generate kinetic energy.

The solar stadium is Located in Lagos, Nigeria's commercial capital of a normal university, is the product of the tripartite cooperation -- energy giant shell, is committed to promote solar energy in Africa of American singer Akon (Akon), and will provide Africa low cost renewable energy power solution set as the important goal of British companies Pavegen.

This is the world's second off grid solar system stadium, the first built in Brazil in 2014. The most interesting place in the stadium is that it is not only use solar energy, also use kinetic energy.

Pavegen technology is to use ball-park "tiles" to capture the players coming from the kinetic energy, for this reason to generate electricity. This energy is sufficient to meet the low voltage system, as like street lamps demand can also store up power for later use.

Not only solar energy generate electricity, can also play-consuming physical solar energy into electrical energy not only generate electricity, but also can play consuming physical energy into electrical energy

Under Ball-park turf there are 100 pieces of these special "tiles", get their energy from the movement players. Total generating capacity of the kinetic energy and solar panel can ensure the community 24 hours street lighting.

More play, pavegen generation technology are more and more, is not difficult to imagine, this technique is actually most suitable for many people of the area, such as schools, sports center and market. Company founder Campbell - Cook (Laurence Kemball-Cook) introduced said, solar power stadium just to show people some possible.” The project tell us, the future energy to how the blend morphology, solar energy and kinetic energy can bring what kind of improvement to our community.” "

Their off grid solar power system stadium approach clearly provides a possibility to solve the power problem in Africa, but to really reach the goal, must also find a way to mass production, and to achieve the balance in terms of cost.



Posted by Sarah Hwong,Feb.26,2016

Luoyang, Henan: Distributed Photovoltaic Power Rnter Into Development And Good Opportunities

Today, there are more and more opportunities to make money, but many people do not know the distributed on and off grid solar power system, PowerOAK experts said: put a piece of solar panels installed on the roof, it can convert light energy into electrical energy, which is distributed solar PV power magic. With environmental awareness growing, there are growing demands for solar energy, solar photovoltaic power generation has become a new trend. In recent years, both the central and local support policies have been put forward to promote the development of photovoltaic industry, Luoyang distributed photovoltaic industry also ushered in a new opportunity.

Enterprise roof "power station" both environmental protection and save money
Recently, the reporter saw in the Yanshi city industrial agglomeration area, the companies are in the heat production, the most eye-catching is the standard plant on the roof of a row of solar panels in the sun shine.

Day of production enterprises of power from roof 'power station'
"Electricity of daily production requirements for enterprise, mostly from the roof 'power stations', to install distributed photovoltaic power generation equipment not only do not enterprise pay applications, but also to save money for enterprise applications." Luoyang Dayun three wheeled motorcycle Co., Ltd. responsible person said, the company has more than 50,000 square meters of standardized plant in the industrial agglomeration area, and now the roof has been fully laid solar panels, the conversion of electrical energy to meet production, save electricity RMB 100,000 last year.

PowerOAK energy relevant responsible person said, the gathering area 30 MW distributed solar power generation project is one of our golden sun demonstration project, projects with a total investment of RMB 3.3 billion, take advantage of 25 enterprises workshop roof space to construct, with a total area of more than 35 million square meters, and in July 2013 combine to grid. The project can save 15% for every degree of electricity enterprises costs. Project annual generation capacity are more than 3000 million kilowatts, the service life are 25 years, each year can save standard coal 12244.2 tons.

The distributed photovoltaic power generation projects, just a microcosm of Luoyang City of distributed photovoltaic power generation industry. Luoyang Municipal Development and Reform Commission relevant responsible person said, June 2014, Luoning, high-efficiency agriculture (2 MW) photovoltaic demonstration project of grid connected operation, so far, declared the city five photovoltaic power generation projects (a total of 53 MW) all completed on schedule, the city were to secure the central subsidy funds are about RMB 3 billion, and monomer scale, total installed capacity and grant funds ranks the first in the province.

A "red envelope" policy to promote distributed photovoltaic power generation "go fast"
In November 2013, Luoyang City in the province took the lead in the introduction of < on accelerating the promotion of distributed photovoltaic power generation implementation opinions >, made before the end of 2015, the city distributed photovoltaic power generation installed capacity reached 200 MW. At the same time, before the end 2015 completed the grid, and give priority to the use of the city enterprises in the production of components of distributed photovoltaic power generation projects, validated, besides enjoying the relevant preferential policies of national and province, according to its installed capacity to give operators RMB 0.1 per watt of reward, for three consecutive years.

May 2014, Henan Province issued a notice, clear 2014 photovoltaic power generation projects are not subject to constraints, municipalities can be 2: 1 of the proportion of distributed generation construction plans and photovoltaic power plant construction plan.

The Province and city, the introduction of supportive policies, to further promote Luoyang distributed photovoltaic industry development speed. As of the end of 2014, the city's solar photovoltaic power generation for the record total scale are 682.075 MW, of which distributed photovoltaic power generation scale are 331.075 MW.




Posted by Sarah Hwong, Feb. 22, 2016

Solar Photovoltaic Power System On The Roof To Give You “Monthly Wages"

Recently, Guangdong Shunde Mr Zhao's home rooftop solar photovoltaic power system was formally installation completed, to enter the stage of grid. Trendy Solar Photovoltaic Power System attracted many villagers and passers-by onlookers. 

The power system was contrasted to build by Shenzhen PowerOak Newener Co.,Ltd (www.poweroak.net), with a total installed capacity of 10.5Kw, electrical system will be sold online, thus each month Mr. Zhao can earn a lot of money.

Mr Zhao in the financial industry, usually pay close attention to national policy and current event hot spot, and is very optimistic about the photovoltaic power generation industry, "My old house has been idle, just can be installed solar photovoltaic power generation system. Now the country is making great efforts to promote new energy, great photovoltaic subsidies, I will sell the electricity to the national grid, every month can gain income."

To build on and off grid solar power system on the roofs of their homes, their power not to spend money, The rest of the electricity can be sold to grid, that is one time investment,but lifelong benefit. Mr. Zhao's solar photovoltaic power system is 10.5KW, month electricity are about 12.6 degrees, according to the national subsidy policy, month can get a subsidy of RMB 1000, sustainable profit more than 25 years.

Morocco To Build The World's Largest Solar Power Plant

February 6, according to TheVerge website reported, Morocco on the edge of the Sahara desert town Ourrzazate established a huge solar power system plant. The plant cover thousands of acres, can produce up to 160 megawatts power, it has already been one of the world's largest solar power grid, from the sky will be able to see and the plant will only become more and more large.

The named for the grid of Noor I is a project of the first phase , the project objective is to live in Morocco and millions of people to provide renewable energy. Soon will expand to Noor II and Noor III, and add more mirror in the existing power plants. Once the project is completed in 2018, the grid will cover 6000 acres, at that time will produce up to 580 MW power which can comparable with that of a small nuclear reactor.

At present, the entire solar farm is made up of 500000 pieces of curved surface mirrors, each mirror is about 40 feet high. These mirrors gathered sunlight to a fluid filled pipe, and the liquid is heated to 739 degrees Fahrenheit (393 degrees Celsius). The liquid is used for heating a near headwater, which into steam to drive a turbine to rotate to generate energy. In Morocco every year has about 3000 hours sunshine, so there is a lot of solar energy can be used. But the plant can also be generated electricity at night, "liquid heat can be stored in a box filled with molten salt water tank." NASA wrote.

According to the guardian said, the current Noor I can from dawn to before sunset about three hours for 650, 000 local residents provide solar power. After completion of the power plant a day can provide 20 hours electricity. This is one of Morocco's plan, the plan will from renewable sources of energy, such as solar energy, the wind and hydroelectric generation acquired power about 42% used for household. Now the whole countries, 97% energy consumption are depending on imports. The new on and off grid solar power system plants and can reduce the dependence, in the meantime will reduce Morocco millions of tons of carbon dioxide emissions.

Posted by Sarah Hwong , Feb 18,2016

Oasis in the desert: Sign the world's largest solar power station

According to CNN reports, Morocco to build a world's largest concentrated on and off grid solar power system plant, the power plant is located in the Moroccan desert town --- Ouarzazate , this town is famous for taking over several Hollywood movies (including "Lawrence of Arabia" "Gladiator", etc.), by 2018, the power plant will provide the energy needed annually to more than one million households - according to the "climate investment funds" (climate investment Funds) data estimation, which is equivalent to an annual reducing 760,000 tons of carbon gas emissions.

On February 4, 2016, with Moroccan King Mohammed VI pressed the button, the first part of the third phase of the project officially put into use.

This called Noor complex solar energy projects, the use concentrated solar panels are much expensive than the widely used photovoltaic panels, but unlike the latter, whether in the night or cloudy days, the panels also can store energy.

It working principle like this: mirrors to focus the sun's rays polymerization, reflection to rotation and mixed water special liquid, the liquid temperature up to 400 degrees, emerging from the process of steam will drive a turbine to generate electricity.

According to the world bank, during the day, full of the melting salt of the cylinder by the mirror polymerization temperature; and to the night, the temperature of the cylinder stored can continue to offer three hours of electricity. The World Bank loan by $ 97 million clean technology funds provide partial support for this project.

"This bold measures may bring Morocco to a clean energy future, it can be said Morocco is a pioneer of green development, but also the development of cutting-edge solar technology," the World Bank Maghreb region executive said.

 "This investment significance for the entire country and the people of Morocco is huge, it can strengthen energy security, create a cleaner environment, and encourage new industry to provide more job opportunities."

Prior to this, 97 % of Morocco's energy all depend on oil imports, so this country eager to diversify energy sources and begin to use renewable energy. Morocco will host the United Nations Climate Change Conference in November 2016, this goal is to be one of the reasons the Moroccan organizers.

 "Africa, especially southern Africa, in the development of solar energy has great potential. Morocco in the region's leading investment may provide a template for other countries, other countries in the development of energy industry may also seek a sustainable way".

 According to CIF data, in addition to reducing carbon emissions and the degree of dependence on oil imports, the project will also be in the total power generation in Morocco, the proportion of renewable energy will promote from 13% to 42%.

 Similarly, this project can improve the living standards of the surrounding area, recent Ouarzazate distance power station 10km, resident population reached 58 million, and poverty rate is as high as 23%. This solar power station will at least thoroughly solve the illumination problem for residents living , and hospital equipment sometimes because of lack of electricity and the short circuit problem.

The Development Of Solar Energy Technology Is Not Limited to Production Innovative

Make great efforts to improve the utilization of solar energy technology is to improve the solar energy utilization efficiency and reduce the cost, the development of this technology should be made in the field of production and consumption. In production field ,in improving the photoelectric conversion efficiency of the solar battery board and improve the inverter conversion efficiency, off grid solar power system also need to complete the energy storage device. 

As reported, there are American scientists have invented a kind of transparent solar cells, with higher photoelectric conversion efficiency. But on the whole, in today's industrial scale, products technology temporarily failed to achieve a breakthrough in the production field.

With the rising of the consumer market, this is the other field which can seek to increase the utilization technology. Running stability is an important factor which impact solar power system cost, this stability not only depends on various parts of the excellent quality, but also depend on the overall operation of the system. For example, currently a lot of distributed solar power generation system incorporated into the public grid, there are many problems, these problems directly affect grid solar power whether can be greater room for development. These may be requires that the state power institutions to study the problem.

At present, In United States has research projects about solar energy prediction technology, the purpose is to predict the solar power generator system when and where can generate how much electricity ,to optimize the grid structure and easy to debug, thereby reducing the cost of solar power generation system access, promote the use of solar power generation technology.

Posted by Sarah Hwong , Feb.2,2016

What Is Different Between Off Grid And On Grid Solar PV Power System ?

When you install home solar power PV system, first need to confirm that to install off grid solar power kit or on grid solar power kit. These are two kinds solar power system, the using function and cost have a big different . However, many users don’t understand what different between off grid and on grid system, here I can tell something :

First, off grid solar power system.
which also called independent pv power system, and don’t depends on power grid to independent operation, mainly include solar panel , storage battery, charge controller and inverter etc.. Electricity by solar panels generated directly into the battery and storage it .when need to electrical power supply, DC current in the storage battery through the inverter and converted into 220V alternating current, which is a repeated cycle of charging and discharging process. The power system due to don’t subject to geographical restrictions, it is widely used.  where there is sunlight there can install and use the off grid solar system. Therefore, it is very suitable to use for remote areas without power grid, island, fishing, outdoor breeding base etc. . can also be as emergency power generation equipment for frequent power outages area.

Due to this system need to be equipped with batteries, and occupied the cost of power generation system 30-50%. And the service life of the battery generally in 3-5 years, later to be replaced it, that increased more using cost. If for economy, it is difficult to promotion for a wide range of use , so do not suitable for convenient using electricity place.

But for the non-power grid area or frequent power outages families, has a strong practicality. Especially for solving the problem of power failure, to use DC energy-saving lamps is very practical.

Hence, off grid solar power system is specialized for no power grid or frequent power outages areas to use.

Second, on grid solar power system

On grid, means must be connected to the public power grid, and connect to solar power, home power grid and public power grid, which is a power system that must depends on existing power grid to run. Mainly consists of solar panels and inverter, the solar panels generate electricity and directly transformed into AC 220V by inverter and to power home appliances, when the solar energy generating capacity is more than the use of household appliances consumption, excess electricity will be transported to the public grid; while the solar energy generating capacity can not meet the household appliances use , it will automatically from the grid supplement. This whole process is intelligent control, do not need to artificially on or off.

Because this on grid solar power system can avoid using batteries, greatly saves the cost of the system, especially this year 3 copies issued by the State Grid about solar energy and other new energy grid deal used has made it clear that allowed free network, excess electricity can also be sold to power companies. From the long-term perspective of investment, cost recovery and after several years maybe have a profitable. Therefore, if you want to save electricity costs and convenient power supply , can choose the on grid solar power system, which will be the mainstream way in currently or in the future.

Whereas, on grid solar power system also have shortage, when the public power grid outage, the solar pv power system can not operate.

The different map of off grid and on grid solar pv power system as following:

The Kind And Function Of Solar Electric Power System

Usually, Solar electric power system according to whether merged into public power supply, it can be divided into two systems : off grid solar power system and on grid solar power system.

Off grid solar power system also called independent photovoltaic power generation system, it means don’t depend on the power grid to operate soly pv power system. Except for the solar panels, inverter, it must equip with charge controller and big capacity battery. The principle of solar power system is to storage the electricity in battery when panels generate. And it will output from the battery when needed.

According to the different function, solar electric power system also can be divided into pure DC- power system and DC-AC power system. Pure DC power system is only suitable for driving DC overload, such as DC light, water pump, fans and TV ect… generally speaking, usually solar street lamp, garden lamp and small DC lighting system as like 5W, 10w, 30w. These are pure dc-power system; while DC-AC power system have 220V AC output voltage, that is to say, these are suitable for different kinds home electric appliance, usually above 500W system can output 220V output electricity.

On-grid solar power system means the system connected to the public supply, coordinate power generation system to household with the electric supply. In our country, it already have been connected to the public supply system for free, except for their own electricity, the remaining electricity can also sold to the state. Besides , on grid also divided into energy storage system and without energy storage device power system. When the weather is good and have enough generating capacity, it is no matter whether there is energy storage or not. But if you encounter rainy days, when the electricity supply have been broken down, energy storage system can be used for a part of the electrical use, but without energy storage system can not be powered up.

In a word, it will be much convenient if there is a small energy storage system --- portable solar generator when outage. More information, you could try http://www.poweroak.solar/


Written by Sarah Hwong, Jan 25,2016

How much a complete home solar power kits to be installed ?

“How much a complete home solar power kits to be installed ?” this is the customers are most concerned about. Before answer this question, you should confirm that to install off grid solar power system or on grid solar power system. Because these two installation cost have great differences. For the same capacity power system, due to release energy storage devices the using cost of on grid system have great reduced.

From the system components, include solar panel, storage battery, controller and inverter. But each component selection have a great space , how much wattage for the solar panel to be chosen? how many capacity for the battery? Those all depend on the user's electricity utilization situation, how much is the electricity per month? What are the main power appliances? Where to be used? Only to make clear the problem first , then engineers can work out the suitable solar power system for users. That is to say, solar power system is based on the users’ electricity utilization and requirement to produce. Because every household’s electricity utilization is different, there is no uniform standard to design the solar power system.

For on grid solar power system, because connect to the public power grid, when power surplus it will be transported to the power grid, power is insufficient and will be input from the grid. Therefore, customers can choose power supply for some household appliances ,can also choose to supply for all . The system can according to user's economic investment, can either be big or small.

As the off grid solar power system, the capacity have a great flexibility, no standard product configuration. It according to the user’s location and electricity utilization, the product configuration is different. There is no doubt, greater system capacity, needs driven electrical power is greater, cost will be higher and higher. For those who need to drive high power electrical appliances such as air-conditioner and induction cooker, requirements of the system capacity is not small, and cost will be much higher.

So, customers before asking price, to their own situation have a number in mind, the basic problem is how much daily electricity consumption is or what appliances will be used and how long be used in the day time. After Engineers know how to calculate the capacity and configuration of your home solar power kits, so that can probably calculate the required capacity of the system and the key components of the selection and design, and customized to meet the condition of the electric power system, to achieve both practical and affordable.