Exhibit 99.10
PINNACLE WEST CAPITAL CORPORATION
NON-GAAP FINANCIAL MEASURE RECONCILIATION — OPERATING INCOME
(GAAP MEASURE) TO GROSS MARGIN (NON-GAAP FINANCIAL MEASURE)
(in thousands)
NON-GAAP FINANCIAL MEASURE RECONCILIATION — OPERATING INCOME
(GAAP MEASURE) TO GROSS MARGIN (NON-GAAP FINANCIAL MEASURE)
(in thousands)
THREE MONTHS ENDED | ||||||||||||||||
MARCH 31, | Increase (Decrease) | |||||||||||||||
2007 | 2006 | Pretax | After Tax | |||||||||||||
RECONCILIATION OF REGULATED ELECTRICITY SEGMENT GROSS MARGIN | ||||||||||||||||
Operating Income (closest GAAP measure) | $ | 67,989 | $ | 57,163 | $ | 10,826 | $ | 6,598 | ||||||||
Plus: | ||||||||||||||||
Operations and maintenance | 171,578 | 178,427 | (6,849 | ) | (4,174 | ) | ||||||||||
Real estate segment operations | 61,443 | 71,330 | (9,887 | ) | (6,026 | ) | ||||||||||
Depreciation and amortization | 89,621 | 87,621 | 2,000 | 1,219 | ||||||||||||
Taxes other than income taxes | 34,719 | 35,573 | (854 | ) | (521 | ) | ||||||||||
Other expenses | 8,488 | 8,522 | (34 | ) | (21 | ) | ||||||||||
Marketing and trading fuel and purchased power | 57,944 | 74,175 | (16,231 | ) | (9,893 | ) | ||||||||||
Less: | ||||||||||||||||
Real estate segment revenues | 77,250 | 107,854 | (30,604 | ) | (18,653 | ) | ||||||||||
Other revenues | 9,363 | 11,224 | (1,861 | ) | (1,134 | ) | ||||||||||
Marketing and trading revenues | 72,471 | 85,002 | (12,531 | ) | (7,638 | ) | ||||||||||
Regulated electricity segment gross margin | $ | 332,698 | $ | 308,731 | $ | 23,967 | $ | 14,607 | ||||||||