6年可回本”“無(wú)后續(xù)投入”“可至少運(yùn)轉(zhuǎn)25年”……

帶著明顯投資或理財(cái)意味的宣傳，加上政府部門的政策支持，近年來(lái)，戶用分布式光伏發(fā)電站在部分地區(qū)的農(nóng)村不大不小地“火了一把”。

戶用分布式光伏電站,是安裝在家庭屋頂上的一座小型太陽(yáng)能發(fā)電裝置，既環(huán)保又綠色。若干光伏發(fā)電板組成陣列，加上逆變器等必要組件，就可在農(nóng)村住宅的屋頂搭建一座戶用分布式光伏發(fā)電站。隨著光伏發(fā)電在農(nóng)村下沉市場(chǎng)的興起，炊煙裊裊、雞犬相聞中，這種頗具科技感的新能源設(shè)備成為一道風(fēng)景線。

在現(xiàn)有的戶用分布式光伏發(fā)展中，“自發(fā)自用、余電上網(wǎng)”“全額上網(wǎng)”等發(fā)電上網(wǎng)模式，可以使這種小型電站生產(chǎn)的電力能源成為商品，并入國(guó)家公共電網(wǎng)，成為一種新的創(chuàng)收方式，這也使這類家庭式新能源項(xiàng)目具備一定的投資價(jià)值。

記者在調(diào)查中發(fā)現(xiàn)，戶用分布式光伏發(fā)電在經(jīng)歷多年推廣后，已經(jīng)具備一定的用戶基礎(chǔ)，在部分農(nóng)村市場(chǎng)的發(fā)展已形成規(guī)模；另一方面，光伏發(fā)電本身的技術(shù)特點(diǎn)以及農(nóng)村市場(chǎng)具體條件的限制，也使這類項(xiàng)目在一些地區(qū)的發(fā)展遭遇瓶頸。

在今年電力能源緊缺的背景之下，光伏產(chǎn)業(yè)鏈整體呈現(xiàn)增長(zhǎng)態(tài)勢(shì)，也由此引發(fā)業(yè)界關(guān)于“光伏發(fā)電能否解決電力緊缺”的猜想。特別是在當(dāng)前農(nóng)村戶用分布式光伏發(fā)電已具備一定數(shù)量的基礎(chǔ)上，“靈活分布”“以量取勝”成為一種樸素的“求解”思路。

It can be repaid in 6 years, has no subsequent investment, and can operate for at least 25 years...

In recent years, household distributed photovoltaic power stations have become popular in some rural areas with obvious investment or financial promotion and policy support from government departments.

Household distributed photovoltaic power station is a small solar power generation device installed on the roof of a home, which is both environmentally friendly and green. An array of photovoltaic panels, together with the necessary components such as an inverter, can set up a household distributed photovoltaic power station on the roof of a rural house. With the rise of photovoltaic power generation in the rural sinking market, the smoke curling, the smell of the new energy equipment with a sense of science and technology has become a landscape.

In the current development of household distributed photovoltaic, power generation online modes such as "self-use, surplus electricity online" and "full electricity online" can make the electricity energy produced by such small power stations become commodities and incorporated into the national public grid as a new way of income generation, which also makes this kind of family new energy projects have a certain investment value.

The reporter found in the investigation, after years of promotion, household distributed photovoltaic power generation has a certain user base, in part of the rural market has formed a scale of development; On the other hand, the technical characteristics of photovoltaic power generation and the specific conditions of the rural market also make the development of this kind of projects in some areas encounter bottlenecks.

Under the background of power energy shortage this year, the photovoltaic industry chain as a whole shows an increasing trend, which also causes the industry to speculate on "whether photovoltaic power generation can solve the power shortage". Especially on the basis of a certain amount of distributed photovoltaic power generation for rural households, "flexible distribution" and "winning by quantity" have become a simple "solution" idea.

In 1839,

French physicist A.E. Becquerel made an accidental discovery

A volt cell consisting of two pieces of metal immersed in a solution

It creates an extra volt of electric potential when it's hit by sunlight

This is the photoluminescent Volt effect

The picture

Later people used this principle

Creating solar cells that can generate electricity

The picture

We know that

In order to get electricity, two conditions must be met

1. There are enough free electrons

2. The electrons have to move in a directional way

So how does photovoltaic power work?

Solar energy cell

It's made of two silicon plates

The picture

Why do batteries look like this?

Atoms are made up of nuclei and electrons

And the electrons will go around the nucleus in several layers

And it was found that

Usually you have eight electrons in your outermost shell

Atoms are more stable

But most atoms don't have eight. What is photovoltaic power generation?

In 1839,

French physicist A.E. Becquerel made an accidental discovery

A volt cell consisting of two pieces of metal immersed in a solution

It creates an extra volt of electric potential when it's hit by sunlight

This is the photoluminescent Volt effect

The picture

Later people used this principle

Creating solar cells that can generate electricity