Sacramento Bee: Elk Grove Unified School District officials have come up with a plan to save at least $1 million. Turn off the lights. It may sound simple, but it’s working. The district rolled out a pilot program designed to change behaviors that waste energy last year. It saved $530,000 in energy costs over the previous year, even with a 6.5 percent rate increase that officials had estimated would have increased costs by another $450,000, said Robert Pierce, associate …