ComEd 2006 Annual Report Download - page 25

quarterly adjustments designed to recover or refund the difference between the actual cost of
purchased gas and the amount included in rates. PECO’s gas distribution base rates for recovery of
costs other than purchased gas costs will continue in effect until PECO files a rate case or there is
some other specific regulatory action to adjust the rates.
PECO’s gas customers have the right to choose their gas suppliers or to purchase their gas
supply from PECO at cost. Approximately 35% of PECO’s current total yearly throughput is provided
by gas suppliers other than PECO and is related primarily to the supply of PECO’s large commercial
and industrial customers. Gas transportation service provided to customers by PECO remains subject
to rate regulation. PECO also provides billing, metering, installation, maintenance and emergency
response services.
PECO’s natural gas supply is provided by purchases from a number of suppliers for terms of up to
three years. These purchases are delivered under long-term firm transportation contracts. PECO’s
aggregate annual firm supply under these firm transportation contracts is 42 million dekatherms. Peak
gas is provided by PECO’s liquefied natural gas (LNG) facility and propane-air plant. PECO also has
under contract 22 million dekatherms of underground storage through service agreements. Natural gas
from underground storage represents approximately 33% of PECO’s 2006-2007 heating season
planned supplies.
Construction Budget
ComEd’s and PECO’s businesses are capital intensive and require significant investments
primarily in energy transmission and distribution facilities. The following table shows the most recent
estimate of capital expenditures for plant additions and improvements for ComEd and PECO for 2007:
(in millions) ComEd PECO
Electric ........................................................ $1,055 $269
Gas ........................................................... — 65
Common ....................................................... — 21
Total .......................................................... $1,055 $355
Approximately 50% of the projected 2007 capital expenditures at ComEd and PECO are for
continuing efforts to maintain and improve the reliability of their transmission and distribution systems.
The remainder of the capital expenditures support customer and load growth.
Employees
As of December 31, 2006, Exelon and its subsidiaries had approximately 17,200 employees in the
following companies:
Generation ............................................................ 7,700
ComEd ............................................................... 5,500
PECO ................................................................ 2,100
Other (a) ............................................................... 1,900
Total ................................................................. 17,200
(a) Other includes shared services employees at Exelon Business Services Company (BSC).
Approximately 5,500 employees, including 3,800 employees of ComEd, 1,600 employees of
Generation and 100 employees of BSC, are covered by collective bargaining agreements (CBAs) with
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