光伏建筑应用.ppt

* * The nice thing about a solar system is that it will produce the most energy when it is most urgently needed in an office building: during daytime, when your computers ar running and the air conditioning system consumes the most electricity. The red line shows the consumption curve of an office building, the green line shows the solar electricity produced by photovoltaics. A remarkable portion of the daily electricity demand can be covered by the solar system. During the night some additional energy has to be bought from the grid; around midday the solar office can even feed energy back into the public grid. Especially during high-tariff periods at noon time, when local electricity grids have to bear the burden of high cooling demands a photovoltaic system can be worth of it’s price, as it cut’s peak demand away and secures the stability of the grid that way. * The nice thing about a solar system is that it will produce the most energy when it is most urgently needed in an office building: during daytime, when your computers ar running and the air conditioning system consumes the most electricity. The red line shows the consumption curve of an office building, the green line shows the solar electricity produced by photovoltaics. A remarkable portion of the daily electricity demand can be covered by the solar system. During the night some additional energy has to be bought from the grid; around midday the solar office can even feed energy back into the public grid. Especially during high-tariff periods at noon time, when local electricity grids have to bear the burden of high cooling demands a photovoltaic system can be worth of it’s price, as it cut’s peak demand away and secures the stability of the grid that way. * * * * * 谢谢大家！ * 各分项系数建议值如下： K1——光电电池长期运行性能参正系数，K1=0.8； K2——灰尘引起光电板透明度的性能参正系数，K2=0.9； K3——光电电池升温导致功率下降参正系数，K3=0.9； K4——导电损耗参正系数，K4=0.95； K5——逆变器效率，K5=0.85； K6——光电模板朝向修正系数，其数值可参考下表选取。 0° 30° 60° 90° 东 93% 90% 78% 55% 南-东 93% 96% 88% 66% 南 93