The National Bureau of Statistics: on March 12 solar power growth. 9% speed up 9. 1%

In march, industrial raw coal, crude oil, natural gas and electricity production, oil and gas import growth, continue to optimize the power structure. Points varieties, hydropower, nuclear power, wind power and solar power production growth at a time, such as thermal power is a bit slow. 12 March, solar power growth. 9%, speeds up the 9. 1%.

in March, the production of raw coal 3. 000 million tons, year-on-year growth of 2. 7%,1本; Fell in February 1. Growth rate from negative to positive, 5%; Average daily output of 9. 62 million tons, more than 1 & ndash; In February, average daily increase of 910000 tons. 1 quarter, the production of raw coal 8. 100 million tons, year-on-year growth of 0. 4%, compared with the same period last year dropped 3. 5%.

import 23. 48 million tons of coal, in March fell by 12. 1% decline for two consecutive months up to two digits. 1 quarter coal imports fell by 1. 8%.

coal prices rose slightly. Compared with the beginning of march and early April qinhuangdao 5500 kcal coal comprehensive trading prices for 592 yuan per ton, rose 21 yuan. 5000 calories, 516 yuan per ton of coal, rose 2 yuan. 4500 calories, 461 yuan per ton of coal, rising $4.

in March, can produce 16. 54 million tons of crude oil rose by 2. 1%, slower than 1 & ndash; To speed up the 1 in February. 6%; Average daily output of 53. 40000 tons, more than 1 & ndash; Average daily increase in February 1. 40000 tons. 1 quarter, can produce 47. 35 million tons of crude oil rose 0. 6%, down 2 over the same period last year. 0% growth from negative to positive.

crude imports increased slightly. In march, 39. 34 million tons of imported crude oil, rose 0. 4%. 1 quarter, crude oil imports rose 8. 2%.

the international crude oil price shocks upward. On March 29, brent crude oil spot fob price for 67. Than $93 a barrel, on February 28, rose 2 a barrel. $9.

　　（ 4) Inverter: on many occasions, all need to provide 220 vac, 110 vac ac power. As a result of the solar direct output is usually 12 VDC, 24 VDC, 48 VDC. To provide electricity to 220 vac electronics, needs to be given out by the solar power system DC can be converted into ac power, so you need to use DC - AC inverter. In some cases, it is necessary to use a variety of voltage of the load, also want to use DC - DC inverter, such as the 24 VDC power into 5 VDC power ( Note that is not a simple step-down) 。