Last year, scientists using a technique called helioseismology, probed the Sun's interior, revealing that currents of gas at the base of the convective zone change velocity every 16 months.
The "silos" are actually smokestacks for the two 6, 130-horsepower natural gas-powered compressors that will take gas from a 30-inch pipeline and send it at a higher velocity into a 24-inch one.