It said Africa has a solar electricity potential of up to 7900 gigawatts.

报告称，非洲的太阳能发电潜力高达7900吉瓦。

It is a program requiring regular payments for solar electricity that is produced at his home.

这是一个要求为他家生产的太阳能电力定期付费的项目。

" On top of that, there's the solar electricity being generated on the same land, " Nachtwey said.

“最重要的是，同一块土地上也能进行太阳能发电。”

There's this virtuous cycle-whereas if you use more solar electricity, you can reduce your use of coal.

“这是良性循环，如果使用更多的太阳能电力，那就可以减少煤的使用量。

And that will reduce the air pollution levels, and that will then allow you to generate more solar electricity.

这就会减少空气污染的程度，进而产生更多太阳能电力。”

Nachtwey said he could use the solar electricity produced on the farm to power his own buildings and machines.

纳赫特维说他可以利用农场产生的太阳能电力为自己的房屋和机器供电。

This allows us, for example, to have a prediction of the amount of wind electricity and solar electricity that we're going to have in the grid with a week in advance.

例如，这使我们能够提前一周预测电网中的风电和太阳能发电量。