Pacific Gas and Electric Co. warned Friday that electricity rates could rise 2.5 percent in January to cover wholesale power costs pushed higher by tight natural gas supplies.
Sound familiar?
Recent hurricanes have damaged natural gas production. Presumably, demand rises with the onset of winter. Prices for natural gas are already climbing; this chart shows a 30% increase since just before Katrina. (mirror)
Because PG&E derives about 43% of its electricity from natural gas, electricity prices have to go up too.