TECO Energy's main subsidiary, Tampa Electric, is planning to expand the Polk Power Station to serve future electricity needs. Plans call for converting the four natural gas-fired combustion turbines into a more efficient combined-cycle unit. If we get all the necessary approvals, the $700 million project is scheduled to be running by early 2017.
The circumference of the Earth is 24,902 miles (40,075.16 km). Over the poles it is more precisely 40,008 km or 24,860 statute miles. The actual unit of measure used by Eratosthenes was the stadion.
How large is Earth? Earth's circumference (the distance all the way around the equator) is 24,901 miles (40,075 kilometers). Its diameter (the distance from one side to the other through Earth's center) is 7,926 miles (about 12,756 kilometers). Earth is slightly smaller when measured between the North and South Poles which gives a diameter of 7,907 miles (12,725 kilometers).