The cheapest solar power now costs $120-140 per megawatthour.
目前最便宜的太阳能每兆瓦时需要120-140美元。
2
For example, it recently won an order to provide a 2.2 megawatt-hour battery, the size of a shipping container, for use in tests to back up a Chinese coal-fired power station.
Prices have fallen from around $60 per megawatt-hour last summer to $20-30 this summer. They are strongly tied to the prices of natural gas and coal, which have both fallen too.