"increase power" is a correct and usable phrase in written English.
For example, you could use it in a sentence like this: "We need to increase power in order to make the machine more efficient."
What will increase power supplies?
The level to increase power is that of the city.
The government aims to increase power capacity tenfold by 2017.
Design studies were carried out to increase power density.
The emergency generators will help increase power to the eastern portion of the island.
The crew then pointed the nose up and tried to increase power.
Sensors on the handle increase power if the slope gets steeper or the user speeds up.
But paradoxically, these three mergers to increase power reveal a sector that is also vulnerable.
Incorporating eQTL information hence has potential to increase power of genome-wide association studies (GWAS).
Without it, friction would increase power consumption and damage the parts.
The cooling enables higher compression ratios and more turbocharger pressure, both of which increase power output.
