Customer Numbers

Electricity Customers (as of year-end 2014)
Residential Large Commercial & Industrial Small Commercial & Industrial Public Authority & Other Wholesale Total
NSPM 1,274,182 466 153,988 7,015 14 1,435,665
Minnesota 1,117,871 429 130,422 6,249 14 1,254,985
North Dakota 79,206 18 12,475 342 -- 92,041
South Dakota 77,105 19 11,091 424 -- 88,639
NSPW 214,350 114 38,939 1,144 -- 254,547
Wisconsin 206,651 112 37,673 1,098 -- 245,534
Michigan 7,699 2 1,266 46 -- 9,013
PSCo (all Colorado) 1,202,621 334 156,809 53,824 23 1,413,611
SPS 302,922 214 76,553 6,323 7 386,019
Texas 208,826 151 53,904 4,590 3 267,474
New Mexico 94,096 63 22,649 1,733 4 118,545
Total 2,994,075 1,128 426,289 68,306 44 3,489,842
Natural Gas Customers (as of year-end 2014)
Residential Commercial & Industrial Transportation & Other Total
NSPM 456,191 42,504 24 498,719
Minnesota 411,622 34,724 23 446,369
North Dakota 44,569 7,780 1 52,350
NSPW 98,325 12,773 23 111,121
Wisconsin 93,265 12,114 23 105,402
Michigan 5,060 659 -- 5,719
PSCo (all Colorado) 1,240,674 100,238 6,547 1,347,459
Total 1,795,190 155,515 6,594 1,957,299

Earning Customer Loyalty