CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Utility plant
Utility plant	$ 684,509	$ 611,746
Less accumulated depreciation	297,441	266,649
Utility plant, net of accumulated depreciation	387,068	345,097
Property under capital leases, net	3,395	4,425
Construction work-in-progress	23,376	20,234
Nuclear fuel, net	2,749	1,737
Total utility plant, net	416,588	371,493
Investments and other assets
Investments in affiliates	179,974	171,514
Non-utility property, less accumulated depreciation ($3,190 in 2011 and $3,164 in 2010)	2,280	2,196
Millstone decommissioning trust fund	5,950	5,742
Restricted cash	2,550	17,581
Other	7,063	7,013
Total investments and other assets	197,817	204,046
Current assets
Cash and cash equivalents	1,734	2,676
Restricted cash	4,619	5,903
Special deposits	5	6
Accounts receivable, less allowance for uncollectible accounts ($3,305 in 2011 and $2,649 in 2010)	26,984	28,552
Accounts receivable - affiliates, less allowance for uncollectible accounts	650	314
Unbilled revenues	21,638	21,003
Materials and supplies, at average cost	7,537	7,159
Prepayments	13,966	15,862
Deferred income taxes	11,862	4,501
Power-related derivatives	4	28
Regulatory assets	2,605	1,924
Other deferred charges - regulatory	9,202	2,078
Other deferred charges and other assets	1,533	0
Other current assets	2,289	1,114
Total current assets	104,628	91,120
Deferred charges and other assets
Regulatory assets	46,381	38,552
Other deferred charges - regulatory	4,623	2,260
Other deferred charges and other assets	6,228	3,275
Total deferred charges and other assets	57,232	44,087
TOTAL ASSETS	776,265	710,746
Capitalization
Common stock, $6 par value, 19,000,000 shares authorized, 15,602,091 issued and 13,473,018 outstanding at December 31, 2011 and 15,470,217 issued and 13,341,144 outstanding at December 31, 2010	93,613	92,821
Other paid-in capital	96,040	94,462
Accumulated other comprehensive loss	(186)	(232)
Treasury stock, at cost, 2,129,073 shares at December 31, 2011 and 2010	(48,436)	(48,436)
Retained earnings	127,123	134,113
Total common stock equity	268,154	272,728
Preferred and preference stock not subject to mandatory redemption	8,054	8,054
Long-term debt	240,578	188,300
Capital lease obligations	2,471	3,471
Total capitalization	519,257	472,553
Current liabilities
Current portion of long-term debt	0	20,000
Accounts payable	7,157	8,137
Accounts payable - affiliates	15,133	11,835
Notes payable	0	13,695
Nuclear decommissioning costs	1,433	1,438
Power-related derivatives	4,940	0
Other deferred credits - regulatory	1,047	1,108
Other current liabilities	49,369	30,763
Total current liabilities	79,079	86,976
Deferred credits and other liabilities
Deferred income taxes	100,314	82,406
Deferred investment tax credits	2,132	2,387
Nuclear decommissioning costs	3,827	5,383
Asset retirement obligations	3,806	3,609
Accrued pension and benefit obligations	40,981	32,441
Other deferred credits - regulatory	3,081	3,886
Other deferred credits and other liabilities	23,788	21,105
Total deferred credits and other liabilities	177,929	151,217
Commitments and contingencies (Note 18)
TOTAL CAPITALIZATION AND LIABILITIES	$ 776,265	$ 710,746