2011年12月08日
losses is analytical
The gains or losses is analytical
Advantage
(1)universal:Too sun shines everywhere earth, there is no the restriction of region regardless land or ocean, regardless high mountain or group of islands, all all have in everywhere, can directly develop and make use of, and need not to mine and transport.solar cell
(2)harmless:The development makes use of solar energy to pollute environment, it is to sweep one of the energies most , at pollution of the environment more and more serious today, this is very and precious.
(3)huge:Annually arrive the Earth superficial sun radiation can invite 130 equal to ton coals, its total amount is present can develop in the world of the biggest energy.
(4)long-last:The nuclear energy velocity producing currently according to the sun estimates, hydrogen of store the quantity enough maintenance last 10,000,000,000 years, and permafrost life span also invite is several 1,000,000,000 years, speak from this meaning, can say that the solar energy is to use it not Jie.
Weaknesssolar water
(1)scatter sex:Arrive the sun of the Earth surface radiates of though the total amount is very big, but can flow density very low.On the average say come, neighborhood in Tropic of Cancer, in summer under the weather clearer circumstance, noon the Fu of the sun radiation shine on one degree biggest, at the perpendicularity is at the sun only direction one square meter area up the solar energy receiving has an or so 1000 Ws on the average;If day and night then only having a 200 Ws by the whole yearses is on the average or so.But in in winter mostly only half, cloudy day generally only 1|5 or so, so of can flow density is very low.Therefore, while making use of solar energy, want to get certain conversion power, usually need a very big set of the area collections and conversion equipments and cost higher.
(2)unsteady:In order to being subjected to day and night, season, geography natural conditional restrictions, such as degree of latitude and elevation height...etc. and fine, the influence of the Yin, cloud, rain etc. random factor, so, arrive the some sun Fu of one ground shines on a degree since interrupted, and then is the most unsteady, this gives solar of the large-scale application increased a difficulty.For making the solar energy become in a row, stable energy, Be thus and finally come canning mutually compete with normal regulations energy of act for energy, have to nicely solve a Xu ability problem, then can as far as possible store to use by providing nighttime or overcast and rainy the angel the sun radiation in clear daytime, but the Xu can is also one of weaker links in the solar energy exploitation currently.
(3)the efficiency Be low to be as high as cost:The solar energy makes use of currently of development level, having some the aspect is theoretically viable, also mature in the technique.But some solar energies make use of device, because the efficiency is low, the cost is higher, total of to say, the economy still don't can mutually compete with normal regulations energy.During very a period of aftertime inside, the solar energy makes use of of the further development be mainly subjected to check and supervision of the economy.solar ingot
Advantage
(1)universal:Too sun shines everywhere earth, there is no the restriction of region regardless land or ocean, regardless high mountain or group of islands, all all have in everywhere, can directly develop and make use of, and need not to mine and transport.solar cell
(2)harmless:The development makes use of solar energy to pollute environment, it is to sweep one of the energies most , at pollution of the environment more and more serious today, this is very and precious.
(3)huge:Annually arrive the Earth superficial sun radiation can invite 130 equal to ton coals, its total amount is present can develop in the world of the biggest energy.
(4)long-last:The nuclear energy velocity producing currently according to the sun estimates, hydrogen of store the quantity enough maintenance last 10,000,000,000 years, and permafrost life span also invite is several 1,000,000,000 years, speak from this meaning, can say that the solar energy is to use it not Jie.
Weaknesssolar water
(1)scatter sex:Arrive the sun of the Earth surface radiates of though the total amount is very big, but can flow density very low.On the average say come, neighborhood in Tropic of Cancer, in summer under the weather clearer circumstance, noon the Fu of the sun radiation shine on one degree biggest, at the perpendicularity is at the sun only direction one square meter area up the solar energy receiving has an or so 1000 Ws on the average;If day and night then only having a 200 Ws by the whole yearses is on the average or so.But in in winter mostly only half, cloudy day generally only 1|5 or so, so of can flow density is very low.Therefore, while making use of solar energy, want to get certain conversion power, usually need a very big set of the area collections and conversion equipments and cost higher.
(2)unsteady:In order to being subjected to day and night, season, geography natural conditional restrictions, such as degree of latitude and elevation height...etc. and fine, the influence of the Yin, cloud, rain etc. random factor, so, arrive the some sun Fu of one ground shines on a degree since interrupted, and then is the most unsteady, this gives solar of the large-scale application increased a difficulty.For making the solar energy become in a row, stable energy, Be thus and finally come canning mutually compete with normal regulations energy of act for energy, have to nicely solve a Xu ability problem, then can as far as possible store to use by providing nighttime or overcast and rainy the angel the sun radiation in clear daytime, but the Xu can is also one of weaker links in the solar energy exploitation currently.
(3)the efficiency Be low to be as high as cost:The solar energy makes use of currently of development level, having some the aspect is theoretically viable, also mature in the technique.But some solar energies make use of device, because the efficiency is low, the cost is higher, total of to say, the economy still don't can mutually compete with normal regulations energy.During very a period of aftertime inside, the solar energy makes use of of the further development be mainly subjected to check and supervision of the economy.solar ingot
Posted by kuama at 12:05│Comments(0)
