We were without electricity for three hours but it's on again now.

我们停电三个小时了，不过现在又来电了。

《牛津词典》

Today, energy storage is a $33 billion global industry that generates nearly 100 gigawatt-hours of electricity per year.

如今，能源储存是价值330亿美元的全球化产业，每年产生近1000亿瓦时的电力。

youdao

Burning one ton of rubbish can produce more than 400 kilowatt hours (度) of electricity.

烧一吨垃圾可以产生超过400度的电力。

youdao

Consumers and businesses are asked to reduce their electricity use during peak electricity hours from 3 to 7 p.m. today to avert the need for rotating outages.

FORBES: Lights Dimming in Texas; Rolling Blackouts Likely

Or consider how much easier it got to earn the money for a half-gallon of milk (56 minutes in 1900, down to 31 minutes in 1930) or 100 kilowatt hours of electricity (107 hours in 1900, but only 11 hours in 1930).

FORBES: Capitalism In No Way Created Poverty, It Inherited It

There is running water once a week, electricity for two hours a day.

ECONOMIST: Tajikistan