The phrase "far-reaching power" is correct and usable in written English and can be used in a variety of contexts
For example: The new technology had a far-reaching power to revolutionize the industry.
She has earned the nickname "Velvet Hammer" for her quiet manner and far-reaching power.
Johnny maintains his far-reaching power by manipulating Japan's vast selling "idol mags".
Perhaps the single most far-reaching power of an American President is the ability to nominate judges to sit on the US Supreme Court.
And because of his affiliation with the attorney general's office, the inspector general has even more far-reaching power, Mr. Farmer said.
Mr. Kibaki also promised to begin an immediate review of the Constitution, which gives the president far-reaching power, and put a new one in place within six months.
Last fall, the Times investigated the practice in a three-part series, calling arbitration "a far-reaching power play orchestrated by American corporations" that makes it much more difficult for consumers to challenge companies for improper practices.
With such far-reaching power-shifts, we need to act carefully – it is always easier to destroy that to build.
The special master will have far-reaching powers.
Conservative "Far-reaching powers" would be given to large cities with elected mayors, such as Manchester.
Last year parliament designated him "leader of the nation", granting him far-reaching powers beyond his term in office.
It may be that the executive branch can justify the extraordinary and far-reaching powers called for in the order.
