Exhibit 12.1

Boston Edison Company
Computation of Ratio of Earnings to Fixed Charges
Twelve Months Ended September 30, 2003
(in thousands)

Net income from continuing operations	$  127,091
Income taxes	88,188
Fixed charges (including securitization certificates)	118,998
Total	$  334,277
Interest expense	$   99,709
Interest component of rentals	19,289
Total	$  118,998
Ratio of earnings to fixed charges	2.81

Exhibit 12.2

Boston Edison Company
Computation of Ratio of Earnings to Fixed Charges
and Preferred Stock Dividend Requirements
Twelve Months Ended September 30, 2003
(in thousands)

Net income from continuing operations	$ 127,091
Income taxes	88,188
Fixed charges (including securitization certificates)	118,998
Total	$ 334,277
Interest expense	$  99,709
Interest component of rentals	19,289
Subtotal	118,998
Preferred stock dividend requirements	1,960
Total	$ 120,958
Ratio of earnings to fixed charges	2.76