光伏發(fā)電是現(xiàn)在正被廣泛推行，安全可靠，無污染的將光能直接轉(zhuǎn)變?yōu)殡娔艿囊环N技術(shù)。那么一般的家庭用光伏發(fā)電設(shè)備要多少錢？屋頂能裝多大的光伏發(fā)電站？一般的家庭用光伏發(fā)電設(shè)備要多少錢？

      光伏發(fā)電設(shè)備價(jià)格不同材質(zhì)價(jià)格不同，有單晶硅的和多晶硅的，兩者之間價(jià)格不同，單晶硅的要比多晶硅要好一些，發(fā)電效率高些，大概每瓦在5.5元左右（只包括光伏板），多晶硅每瓦在5元左右（只包括光伏板），如果說是斜屋頂裝光伏發(fā)電的話，每平方米能夠裝120--130瓦左右，如果是平方的話，每平方米能夠裝80瓦左右，當(dāng)然這只是參考價(jià)格，具體當(dāng)以當(dāng)?shù)厥袌鰞r(jià)格為準(zhǔn)。

光伏發(fā)電設(shè)備的成本

從全國范圍來看，太陽能光伏發(fā)電的成本是8-12元一瓦來計(jì)算的。比如說一個(gè)100平米的屋頂，可以做10千瓦，按照10元一瓦來算，最后總包的價(jià)格就是10萬元。這個(gè)價(jià)格026包括了設(shè)計(jì)、設(shè)備、施工并網(wǎng)等。具體的價(jià)格還是需要結(jié)合需求和裝機(jī)容量來確定。

一般的家庭屋頂能裝多大的光伏發(fā)電站？

光伏發(fā)電站是按瓦(W)來計(jì)算的，瓦就是裝機(jī)容量，不是按照面積來計(jì)算的。但是裝機(jī)容量跟面積也是有關(guān)系的。

現(xiàn)在市場上的光伏發(fā)電分三種：1.非晶硅光伏組件;2.多晶硅光伏組件;3.單晶硅光伏組件，也是光伏發(fā)電的核心部件。

1、非晶硅光伏組件每平方只有最大只有78W，最小只有50W左右。

特性：占地面積大、比較易碎、轉(zhuǎn)換效率低、運(yùn)輸不安全、衰減多快、但是弱光較好。

2、多晶硅光伏組件每平米功率現(xiàn)在市場上較為常見的250W、255W、260W、265W。

特性：衰減慢、使用壽命長相對比單晶硅光伏組件價(jià)格要有優(yōu)勢，也是現(xiàn)在市場上比較多的一種。

3、單晶硅光伏組件市場上常見的功率在260W、265W、270W、275W面積是1.63平方米左右。

特性：相對比多晶硅同等面積轉(zhuǎn)換效率稍高一點(diǎn)，造價(jià)也當(dāng)然比多晶硅光伏組件的造價(jià)要高些，使用壽命和多晶硅光伏組件基本相同。

屋頂類型

安裝光伏發(fā)電的屋頂一般有三種：彩鋼屋頂、磚瓦結(jié)構(gòu)屋頂、平面混凝土屋頂。屋頂不同，光伏電站的安裝方式不同，安裝的電站面積也不同。

彩鋼瓦屋頂

在鋼結(jié)構(gòu)的彩鋼瓦屋頂安裝光伏電站，通常情況下只在朝南的一面安裝光伏組件，鋪設(shè)比例為1千瓦占面10平方米，也就是1兆瓦(1兆瓦=1000千瓦)項(xiàng)目需要使用1萬平方米面積。

磚瓦結(jié)構(gòu)屋頂

在磚瓦結(jié)構(gòu)屋頂安裝光伏電站，一般會選在08:00—16:00沒有遮擋的屋頂區(qū)域鋪滿光伏組件，雖然安裝方式與彩鋼屋頂不同，但是鋪設(shè)比例卻相似，也是1千瓦占面積10平方米左右。

平面混凝土屋頂

在平面屋頂安裝光伏電站，為了保證組件盡可能多的接收陽光，需要設(shè)計(jì)出最佳水平傾角，故在每排組件之間需要間隔一定間距，以保證不被前排組件陰影遮擋。所以，整個(gè)項(xiàng)目占用的屋頂面積，會大于可以實(shí)現(xiàn)組件平鋪的彩鋼瓦和別墅屋頂。

Photovoltaic power generation is now being widely implemented, safe, reliable, pollution-free direct conversion of light energy into electricity technology.So how much does the average home PV equipment cost?How big a photovoltaic power station can fit on the roof? How much is the average home photovoltaic power generation equipment?

Photovoltaic power generation equipment prices different materials is different, have monocrystalline silicon and polycrystalline silicon, between the two different prices, polycrystalline silicon is better than single crystal silicon, high efficiency, every tile in 5.5 yuan (including photovoltaic panels), polysilicon per watt in 5 yuan (including photovoltaic panels), if inclined housetop with photovoltaic power generation, can install around 120-130 watts per square meter, if is a square, about 80 watts per square meter can, of course this is only a reference price, specific when to local market price shall prevail.

The cost of photovoltaic power generation equipment

Nationwide, the cost of solar photovoltaic power generation is calculated at 8-12 yuan per watt.For example, a 100 square meters roof, can do 10 kilowatts, according to 10 yuan a watt to calculate, the final total package price is 100 thousand yuan. This price includes design, equipment, construction and grid connection.Specific price or need to combine the demand and installed capacity to determine.

How big can a PV power station fit on the roof of an average home?

PV power stations are calculated in terms of watts (W), which is the installed capacity, not the area.But installed capacity and area are also related.

There are three types of photovoltaic power on the market: 1. Amorphous silicon photovoltaic modules; 2.2. Polycrystalline silicon photovoltaic modules; 3. Monocrystalline silicon photovoltaic modules are also the core components of photovoltaic power generation.

1, amorphous silicon photovoltaic modules per square only the largest is only 78W, the smallest is only about 50W.

Features: large footprint, relatively fragile, low conversion efficiency, unsafe transportation, fast attenuation, but weak light is better.

2. The power per square meter of polysilicon photovoltaic modules is now more common in the market: 250W, 255W, 260W and 265W.

Features: slow attenuation, service life looks compared to the price of monocrystalline silicon photovoltaic modules to have an advantage, is now on the market more of a kind.

3. The common power of monocrystalline silicon photovoltaic modules in the market is about 1.63 square meters in 260W, 265W, 270W and 275W.

Features: relatively higher than the same area of polysilicon conversion efficiency, the cost is of course higher than the cost of polysilicon photovoltaic modules, the service life and polysilicon photovoltaic modules are basically the same.

Roof type

There are generally three kinds of roofs for installing photovoltaic power generation: color steel roof, brick and tile structure roof and flat concrete roof. The roof is different, the installation method of photovoltaic power station is different, and the area of the power station is different.

Colored steel tile roof

In the steel structure of the steel tile roof installation of photovoltaic power station, usually only in the south side of the installation of photovoltaic modules, the laying ratio of 1 kilowatt accounted for 10 square meters, that is, 1 megawatt (1 megawatt =1000 kilowatt) project needs to use 10,000 square meters of area.

Tile roof structure

In the brick and tile roof installation of photovoltaic power station, will generally choose at 08:00-16:00 no shelter roof area covered with photovoltaic modules, although the installation method is different from the color steel roof, but the laying ratio is similar, is also 1 kilowatt area of about 10 square meters.

Flat concrete roof

In order to ensure that the modules receive as much sunlight as possible when installing the photovoltaic power station on the flat roof, it is necessary to design the best horizontal inclination Angle. Therefore, a certain interval between each row of modules is required to ensure that the modules are not Shadowed by the front row modules. Therefore, the roof area occupied by the whole project will be larger than the color steel tile and villa roof which can achieve the tiling of components.