When the heat is on, a power grid sweats Worried regulators plead for conservation as state faces Stage 1 emergency today - Erin Allday and Simone Sebastian, Chronicle Staff Writers Monday, July 24, 2006 Californians did an impressive job conserving energy Sunday, but power regulators are forecasting record energy demands as everyone heads back to work today, making conservation absolutely critical. "While we got through today just fine, we're very concerned about Monday. Everybody goes back to work and cranks on the computer, the coffee machine, the fax machine," said Gregg Fishman, a spokesman for the California Independent System Operator,...