The FACTS highway

Utility consumers do not use electricity in a smooth, predictable way.
Uncontrollable environmental, consumer and market contingencies
create demand peaks. These turn normally sufficient transmission
systems into challenging "bumpy roads" for power providers.

FACTS increases the capacity and stability of of electrical
transmissions, keeping the electricity flowing efficiently, like cars
on a smooth, open highway. This helps power providers to meet
demand peaks using existing transmission lines.