In 2003, the first franchise bidding power far before the wind resources on three basic was already major power group to occupy. This may start first sea wind franchise bidding, each big electric group has started a new round of sea wind resources. In all, belong to the actual combat power and the LongYuan combined power, but develop guodian overlooking look in category iv belongs to the low speed wind resources on the wind. The personage inside course of study thinks, because XiaoNa center distance closer interconnection, more easily solved, the fourth wind will become big electric group invested third wave.

LongYuan and joint force one step ahead

China's worst polluters the reporter understands, LongYuan power has signed in anhui province and chuzhou cooperative frame agreement, the future development in chuzhou area LongYuan low speed wind farms, the four projects with a total installed capacity for 60 million kilowatts, plan by 1.5 mw big leaf blower, 86 meters to achieve by the end of this year will be the first units) grid generation. Because of chuzhou belongs to the fourth type, so will the resources of hk $0.61 executive power.

LongYuan executive director and general electric XieChangJun says, low speed wind investment than ordinary wind field only 5% by internal control, high investment growth to digest this part, therefore return with ordinary project. The two to three years, LongYuan power in anhui province, shandong province of liaoning and build a low speed wind.

Besides LongYuan power, belong to the combined power of guodian, also began about in the fourth class wind resources development. Reporters from guodian combined power to realize, at present, the company has signed cooperation agreements TianChangShi chuzhou, future will be in the area of the construction of 15 million kilowatts of low speed wind.

"Last year in the resources available hours of 1,800 hours, because of the local ManFa can be realized, so the basic measure by us. This project internal investment returns in the above 12% a conservative estimate, have fairly good." Guodian joint force an insider said.

According to understand, and jiangsu combined power guodian signed exclusive agreement, siyang near future will be in the hongze lake horse 15 million kilowatts again low speed wind.

Except for the development of low speed wind, also rely on their combined power guodian, low speed of the fans to research. Recently, the first domestic 1.5mw wind high altitude, low in baoding fan base area.

Company technical personnel with conventional fan, told reporters, low speed rotor diameter is longer, fan requirements, conventional farms wheel rims higher average height in 65 metres, low speed wind farms average in 70 meters height of hub. In addition, the fan other system should also be adjusted, so a conventional fan speed, low cost of fan to 10%.

"Of course, specific data according to the different wind field of wind resources."
Low speed wind will into investment

For now, China is low speed are not unified definition.

Chinese wind energy association, vice President of the ShiPengFei thinks, determine whether for low speed wind resources, not only look, consider the air density and so on a series of factors. If want to define, can according to 50 meters high wind power density as index, the so-called wind power density means, wind power produced per unit area in the power, the unit of watts per square metre.

"As for this index is much, should according to the specific project." ShiPengFei said.

In July last year, the national development and reform commission announced the price department on wind power based on the policy, this notice will notice the wind resources belong to four categories, three north area of inland, basic belongs to the fourth class wind resources area. The personage inside course of study thinks, as long as it is the fourth class wind resources of the area, basically can judge the wind field for low speed wind field.

According to the standard, if wind resources, low mainly concentrated in anhui province, hunan, hubei, fujian, yunnan, etc. Compared with three north region, the area is larger, demand for power and close XiaoNa center, so that there is no problem in the transmission distance, regional development, besides can ensure wind power grid in XiaoNa outside, still save a large investment of power.

Guodian combined power insiders think, Inner Mongolia, effective utilization of hours can reach 30, but if half the time in the actual utilization, abandon hours less than 2,000 inland provinces, part of the low speed wind field and effective in use around 1,800 hours in the economic benefit, not more than three north region.

The reporter still understands, except in the department of huadian power, about hunan chenzhou also began to invest low speed wind field. ShiPengFei says, low speed wind field development embryonic state, but with the land quality, sea wind resources to occupy the fierce competition of resources, see each power group future will look in low speed wind field, it is the development trend of the industry.