Xcel Energy 2006 Annual Report Download - page 36

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Xcel Energy Gas Operating Statistics
Year Ended Dec. 31,
2006 2005 2004
Gas Deliveries (Thousands of MMBtu)
Residential................................................................... 126,846 135,794 134,512
Commercial and Industrial ...................................................... 81,107 83,667 86,053
Total Retail................................................................ 207,953 219,461 220,565
Transportation and Other ....................................................... 135,708 134,061 116,593
Total Deliveries ............................................................ 343,661 353,522 337,158
Number of Customers at End of Period
Residential................................................................... 1,669,747 1,636,652 1,612,047
Commercial and Industrial ...................................................... 147,614 145,067 145,153
Total Retail................................................................ 1,817,361 1,781,719 1,757,200
Transportation and Other ....................................................... 3,981 3,764 3,544
Total Customers ........................................................... 1,821,342 1,785,483 1,760,744
Gas Revenues (Thousands of Dollars)
Residential................................................................... $1,330,025 $1,450,316 $1,180,120
Commercial and Industrial ...................................................... 755,204 794,230 660,227
Total Retail................................................................ 2,085,229 2,244,546 1,840,347
Transportation and Other ....................................................... 70,770 62,839 75,167
Total Gas Revenues......................................................... $2,155,999 $2,307,385 $1,915,514
MMBtu Sales per Retail Customer................................................ 114.43 123.17 125.52
Revenue per Retail Customer.................................................... $ 1,147.39 $ 1,259.76 $ 1,047.32
Residential Revenue per MMBtu................................................. $ 10.49 $ 10.68 $ 8.77
Commercial and Industrial Revenue per MMBtu .................................... $ 9.31 $ 9.49 $ 7.67
Transportation and Other Revenue per MMBtu...................................... $ 0.52 $ 0.47 $ 0.63
ENVIRONMENTAL MATTERS
Certain of Xcel Energy’s subsidiary facilities are regulated by federal and state environmental agencies. These agencies have
jurisdiction over air emissions, water quality, wastewater discharges, solid wastes and hazardous substances. Various company
activities require registrations, permits, licenses, inspections and approvals from these agencies. Xcel Energy has received all
necessary authorizations for the construction and continued operation of its generation, transmission and distribution systems.
Company facilities have been designed and constructed to operate in compliance with applicable environmental standards.
Xcel Energy and its subsidiaries strive to comply with all environmental regulations applicable to its operations. However, it is not
possible to determine when or to what extent additional facilities or modifications of existing or planned facilities will be required as a
result of changes to environmental regulations, interpretations or enforcement policies or, what effect future laws or regulations may
have upon Xcel Energy’s operations. For more information on environmental contingencies, see Notes 14 and 15 to the Consolidated
Financial Statements, environmental matters in Management’s Discussion and Analysis under Item 7 and the matters discussed below.
Leyden Gas Storage Facility — In February 2001, the CPUC approved PSCo’s plan to abandon the Leyden natural gas storage
facility (Leyden) after 40 years of operation. In July 2001, the CPUC decided that the recovery of all Leyden costs would be addressed
in a future rate proceeding when all costs were known. In 2003, PSCo began flooding the facility with water, as part of an overall plan
to convert Leyden into a municipal water storage facility owned and operated by the city of Arvada, Colo. In August 2003, the
Colorado Oil and Gas Conservation Commission (COGCC) approved the closure plan, the last formal regulatory approval necessary
before conversion. On Dec. 31, 2005, PSCo’s leases of the Leyden properties were terminated and the city of Arvada took custody of
the facility. PSCo is obligated to monitor the site for two years after closure. As of Dec. 31, 2005, PSCo has incurred approximately
$5.7 million of costs associated with engineering buffer studies, damage claims paid to landowners and other initial closure costs.
PSCo has accrued an additional $0.2 million of costs expected to be incurred through 2006 to complete the decommissioning and
closure of the facility. PSCo has deferred these costs as a regulatory asset. In May 2005, PSCo filed a natural gas rate case with the
CPUC requesting recovery of the Leyden costs totaling $4.8 million to be amortized over four years. Xcel Energy has reached a
settlement agreement with the parties in the case. The CPUC approved the settlement agreement on Jan. 19, 2006, and the final order
became effective on Feb. 3, 2006. In November 2006, PSCo filed a natural gas rate case with the CPUC requesting recovery of
additional Leyden costs, plus unrecovered amounts previously authorized from the last rate case, which amounted to $5.9 million to be
amortized over four years. The total amount PSCo is requesting be recovered from customers is $7.7 million.