6年可回本”“无后续投入”“可至少运转25年”……

带着明显投资或理财意味的宣传，加上政府部门的政策支持，近年来，户用分布式光伏发电站在部分地区的农村不大不小地“火了一把”。

户用分布式光伏电站,是安装在家庭屋顶上的一座小型太阳能发电装置，既环保又绿色。若干光伏发电板组成阵列，加上逆变器等必要组件，就可在农村住宅的屋顶搭建一座户用分布式光伏发电站。随着光伏发电在农村下沉市场的兴起，炊烟袅袅、鸡犬相闻中，这种颇具科技感的新能源设备成为一道风景线。

在现有的户用分布式光伏发展中，“自发自用、余电上网”“全额上网”等发电上网模式，可以使这种小型电站生产的电力能源成为商品，并入国家公共电网，成为一种新的创收方式，这也使这类家庭式新能源项目具备一定的投资价值。

记者在调查中发现，户用分布式光伏发电在经历多年推广后，已经具备一定的用户基础，在部分农村市场的发展已形成规模；另一方面，光伏发电本身的技术特点以及农村市场具体条件的限制，也使这类项目在一些地区的发展遭遇瓶颈。

在今年电力能源紧缺的背景之下，光伏产业链整体呈现增长态势，也由此引发业界关于“光伏发电能否解决电力紧缺”的猜想。特别是在当前农村户用分布式光伏发电已具备一定数量的基础上，“灵活分布”“以量取胜”成为一种朴素的“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