In Millions, Except Per Share Amounts

Three Months Ended

Nine Months Ended

9/30/22

9/30/21

9/30/22

9/30/21

Net Income Available to Common Stockholders

$

163

$

186

$

659

$

711

Reconciling items:

Disposal of discontinued operations (gain) loss

-

3

(5)

8

Tax impact

-

(1)

1

(2)

Discontinued operations income

-

(42)

-

(115)

Tax impact

-

10

-

27

Other exclusions from adjusted earnings**

*

(*)

(1)

(1)

Tax impact

(*)

*

*

*

Voluntary separation program

(*)

-

11

-

Tax impact

*

-

(3)

-

Adjusted net income - non-GAAP

$

163

$

156

$

662

$

628

Average Common Shares Outstanding

Diluted

290.1

289.6

290.0

289.4

Diluted Earnings Per Average Common Share

Reported net income per share

$

0.56

$

0.64

$

2.27

$

2.46

Reconciling items:

Disposal of discontinued operations (gain) loss

-

0.01

(0.01)

0.03

Tax impact

-

(*)

*

(0.01)

Discontinued operations income

-

(0.14)

-

(0.39)

Tax impact

-

0.03

-

0.09

Other exclusions from adjusted earnings**

*

(*)

(*)

(*)

Tax impact

(*)

*

*

*

Voluntary separation program

(*)

-

0.04

-

Tax impact

*

-

(0.01)

-

Adjusted net income per share - non-GAAP

$

0.56

$

0.54

$

2.29

$

2.18

* Less than $0.5 million or $0.01 per share.

** Includes restructuring costs and unrealized gains or losses, recognized in net income, from mark-to-market adjustments related to NorthStar Clean Energy's interest expense.

Management views adjusted (non-Generally Accepted Accounting Principles) earnings as a key measure of the Company's present operating financial performance and uses

adjusted earnings for external communications with analysts and investors. Internally, the Company uses adjusted earnings to measure and assess performance. Adjustments could

include items such as discontinued operations, asset sales, impairments, restructuring costs, changes in accounting principles, changes in federal tax policy, regulatory items from

2

prior years, unrealized gains or losses from mark-to-market adjustments, recognized in net income related to NorthStar Clean Energy's interest expense, or other items. The adjusted

earnings should be considered supplemental information to assist in understanding our business results, rather than as a substitute for reported earnings.

In Millions, Except Per Share Amounts

2022

1Q

2Q

3Q

Net Income Available to Common Stockholders

$

351

$

145

$

163

Reconciling items:

Electric utility and gas utility

-

11

(*)

Tax impact

-

(3)

*

NorthStar Clean Energy

(1)

(*)

-

Tax impact

*

*

-

Corporate interest and other

-

*

*

Tax impact

-

(*)

(*)

Disposal of discontinued operations (gain) loss

(5)

*

-

Tax impact

1

(*)

-

Adjusted Net Income - Non-GAAP

$

346

$

153

$

163

Average Common Shares Outstanding - Diluted

289.9

290.1

290.1

Diluted Earnings Per Average Common Share

$

1.21

$

0.50

$

0.56

Reconciling items:

Electric utility and gas utility

-

0.04

(*)

Tax impact

-

(0.01)

*

NorthStar Clean Energy

(*)

(*)

-

Tax impact

*

*

-

Corporate interest and other

-

*

*

Tax impact

-

(*)

(*)

Disposal of discontinued operations (gain) loss

(0.01)

*

-

Tax impact

*

(*)

-

Adjusted Diluted Earnings Per Average Common Share - Non-GAAP

$

1.20

$

0.53

$

0.56

In Millions, Except Per Share Amounts

2021

1Q

2Q

3Q

4Q

Net Income Available to Common Stockholders

$

349

$

176

$

186

$

637

Reconciling items:

Electric utility and gas utility

-

-

-

29

Tax impact

-

-

-

(7)

NorthStar Clean Energy

(1)

*

(*)

*

Tax impact

*

(*)

*

(*)

Corporate interest and other

-

(*)

-

*

Tax impact

-

*

-

(*)

Disposal of discontinued operations (gain) loss

-

5

3

(665)

Tax impact

-

(1)

(1)

145

Discontinued operations income

(43)

(30)

(42)

-

Tax impact

9

8

10

-

Adjusted Net Income - Non-GAAP

$

314

$

158

$

156

$

139

Average Common Shares Outstanding - Diluted

289.1

289.4

289.6

289.7

Diluted Earnings Per Average Common Share

$

1.21

$

0.61

$

0.64

$

2.20

Reconciling items:

Electric utility and gas utility

-

-

-

0.10

Tax impact

-

-

-

(0.03)

NorthStar Clean Energy

(*)

*

(*)

*

Tax impact

*

(*)

*

(*)

Corporate interest and other

-

(*)

-

*

Tax impact

-

*

-

(*)

Disposal of discontinued operations (gain) loss

-

0.02

0.01

(2.30)

Tax impact

-

(0.01)

(*)

0.50

Discontinued operations income

(0.15)

(0.10)

(0.14)

-

3

Tax impact

0.03

0.03

0.03

-

Adjusted Diluted Earnings Per Average Common Share - Non-GAAP

$

1.09

$

0.55

$

0.54

$

0.47