Plates at our planet s surface move because of the intense heat in the Earth s core that causes molten rock in the mantle layer to move. It moves in a pattern called a convection cell that forms when warm material rises, cools, and eventually sink down. As the cooled material sinks down, it is warmed and rises again.
PG&E on Wednesday did not offer a specific figure for how much the switch to renewable power would boost electricity rates in 2015. But in the past, the utility has said that rates will rise 1 percent to 2 percent each year as a result.
DirecTV and AT&T's Uverse, which are now a part of the same company, announced last week that their rates will go up starting Jan. 28. The increases will vary for customers, but different base packages, channel bundles and premium channels will see increases ranging from $2 to $8 per month.