power lines
nuclear/wind/solar power
We lost power for three days.
From my parents, I found out that there was a power failure. (Preliminary English Test; B1; Chinese)
I don't have any power over him - he does what he wants to.
People can't be trusted [with] power. [T]hey will always reach for more. (First Certificate in English; B2; Swedish)
They have been in power too long.
When did this government come to power?
It happened in the November of 1973 and it is the University students' rebellion against the outlaw military goverment which had come to power in 1967 after a violent c[oup]. (Certificate in Advanced English; C1; Greek)
I've done everything in my power to help him.
I think of myself as an open-minded and cheerful person and if I get the job I will do everything in my power to make sure your visitors will have a great time at the theme park. (Certificate in Advanced English; C1; Danish)
a major world power
Unfortunately this trend continues into adulthood and has become so bad that in a world power like the United States, one in every three people are considered clinically obese. (International English Language Testing System; C1; Afrikaans)
economic/military power
We have enough population and economic power to set up a complete city. (Certificate in Advanced English; C1; Korean)