california's strained power grid is getting a boost today which might help increasingly taxed power supplies 
a unit at diablo canyon nuclear plant is expected to resume production today 
it had been shut down for maintenance 
coupled with another unit, it can provide enough power for about 2 million people 
meanwhile, a cold snap in the pacific northwest is putting an added strain on power supplies 
the area shares power across many states 
energy officials are offering tips to conserve electricity, they say, to delay holiday lighting until after at night 
set your thermostat at 68 degrees when you're home, 55 degrees when you're away 
try to use electrical appliances before p.m. and after p.m. and turn off computers, copiers and lights when they're not being