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.
Rather than sock PG&E customers with a massive bill increase in September to make up for all the lost months, the commission let PG&E defer some of the 2014 income into 2015. The utility boosted average monthly bills, for electricity and gas combined, by more than $7 in the fall and will add another $7.97 this month.