CON ED LOSES IN BID FOR 10.4% RATE RISE; 1.9% GRANTED BY P.S.C.
Con Ed is granted $45.4-million elec rate increase instead of $249.8-million increase it requested; PSC accepts staff rept that co is strong, with abundant cash and in no need for additional financing until '82; acts to more than double differential between summer and winter rates; will allow co to pass through to customers only 75% of pay increases it will negotiate with Utility Workers of Amer and IBEW; move is designed to give co incentive to bargain tough; comm will allow co to pass through only 90% of any increases in real-estate taxes (M)