Consolidated Condensed Balance Sheets (USD $) In Millions	Sep. 30, 2011		Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 165.8		$ 67.5
Short-term investments	0		14.8
Receivables, less allowance for uncollectibles	342.8		333.4
Inventories, at average cost
Fuel	124.1		169.5
Materials and supplies	83.8		78.1
Current derivative assets	1.3	[1]	2.7	[1]
Current regulatory assets	55.8		62.7
Deferred tax asset	76.3		0
Prepayments and other current assets	33.5		28.5
Income tax receivables/Taxes receivable	0.2		0.4
Total current assets	883.6		757.6
Property, plant and equipment
Electric	6,697.3		6,558.9
Gas	1,145.4		1,115.0
Construction work in progress	191.0		212.4
Other property	428.6		398.5
Property, plant and equipment	8,462.3		8,284.8
Accumulated depreciation	(2,578.3)		(2,443.8)
Total property, plant and equipment, net	5,884.0		5,841.0
Other assets/Deferred debits
Deferred income taxes, net	0		57.3
Long-term regulatory assets	331.2		341.9
Long-term derivative assets	0.2	[1]	0.2	[1]
Goodwill	55.4		55.4
Deferred charges and other assets	141.5		141.2
Total other assets/Total deferred debits	528.3		596.0
Total assets	7,295.9		7,194.6
Current liabilities
Recourse	374.9		67.1
Non-recourse	11.2		11.2
Notes payable	0		12.0
Accounts payable	252.5		281.5
Customer deposits	158.3		156.5
Current regulatory liabilities	95.5		110.0
Current derivative liabilities	29.5	[1]	27.2	[1]
Interest accrued	62.1		42.4
Taxes accrued	61.2		26.2
Other current liabilities	19.4		18.2
Total current liabilities	1,064.6		752.3
Other liabilities/Deferred credits
Deferred income taxes, net	138.3		0
Investment tax credits	10.1		10.4
Long-term regulatory liabilities	637.5		630.8
Long-term derivative liabilities	6.0	[1]	2.6	[1]
Deferred credits and other liabilities	487.0		479.8
Long-term debt, less amount due within one year
Recourse	2,664.9		3,114.6
Non-recourse	25.1		33.5
Total other liabilities/Total deferred credits	3,968.9		4,271.7
Commitments and Contingencies
Capital
Common equity	215.8		214.9
Additional paid in capital	1,550.4		1,542.0
Retained earnings	512.6		430.0
Accumulated other comprehensive loss	(16.9)		(17.2)
Total TECO Energy, Inc. capital	2,261.9		2,169.7
Noncontrolling interest	0.5		0.9
Total capital	2,262.4		2,170.6
Total liabilities and capital	7,295.9		7,194.6
Tampa Electric Co [Member]
Current assets
Cash and cash equivalents	111.1		3.7
Receivables, less allowance for uncollectibles	253.7		264.6
Inventories, at average cost
Fuel	84.2		119.0
Materials and supplies	63.8		59.1
Current derivative assets	0		1.1
Current regulatory assets	55.8		62.7
Deferred tax asset	28.7		1.5
Prepayments and other current assets	12.7		10.0
Income tax receivables/Taxes receivable	0		24.6
Total current assets	610.0		546.3
Property, plant and equipment
Electric	6,481.6		6,343.4
Gas	1,089.9		1,060.6
Construction work in progress	185.6		206.8
Other property	5.7		4.7
Property, plant and equipment	7,757.1		7,610.8
Accumulated depreciation	(2,202.7)		(2,093.9)
Public Utilities, Property, Plant and Equipment, Net, Total	5,554.4		5,516.9
Total property, plant and equipment, net	5,560.1		5,521.6
Other assets/Deferred debits
Long-term regulatory assets	331.2		341.9
Unamortized debt expense	15.0		17.8
Other	9.9		10.9
Total other assets/Total deferred debits	356.1		370.6
Total assets	6,526.2		6,438.5
Current liabilities
Notes payable	0		12.0
Long-term debt due within one year	374.9		3.4
Accounts payable	184.2		219.0
Customer deposits	158.3		156.5
Current regulatory liabilities	95.5		110.0
Current derivative liabilities	29.5		27.2
Interest accrued	46.5		24.6
Taxes accrued	70.8		14.0
Other current liabilities	12.2		12.2
Total current liabilities	971.9		578.9
Other liabilities/Deferred credits
Deferred income taxes, net	737.0		631.5
Investment tax credits	10.1		10.4
Long-term regulatory liabilities	637.5		630.8
Long-term derivative liabilities	4.5		2.6
Other	359.2		360.0
Long-term debt, less amount due within one year
Total other liabilities/Total deferred credits	1,748.3		1,635.3
Commitments and Contingencies
Capital
Common equity	1,852.4		1,852.4
Retained earnings	342.1		311.1
Accumulated other comprehensive loss	(4.8)		(5.3)
Total capital	2,189.7		2,158.2
Total liabilities and capital	6,526.2		6,438.5
Long-term debt, less amount due within one year	1,616.3		2,066.1
Total capitalization	$ 3,806.0		$ 4,224.3

[1] Amounts presented above are on a gross basis, with asset and liability positions netted by counterparty in accordance with accounting standards for derivatives and hedging.