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Electric utility segment - Condensed consolidating statement of cash flows (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Cash flows from operating activities |  |
Net income | $ 46,161 | $ 40,720
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation of property, plant and equipment | 57,435 | 53,091
Other amortization | 9,792 | 8,745
Deferred income taxes | (3,171) | (2,889)
Allowance for equity funds used during construction | (2,910) | (3,294)
Other | (3,482) | 2,150
Changes in assets and liabilities |  |
Decrease (increase) in fuel oil stock | (37,574) | (1,704)
Increase in regulatory assets | (5,040) | (16,900)
Change in prepaid and accrued income taxes, tax credits and revenue taxes | (33,136) | (29,842)
Increase in defined benefit pension and other postretirement benefit plans liability | 3,220 | (390)
Net cash provided by operating activities | 77,169 | 34,677
Cash flows from investing activities |  |
Capital expenditures | (120,424) | (129,022)
Advances (to) from affiliates | 3,530 | 2,593
Net cash used in investing activities | (82,978) | (231,051)
Cash flows from financing activities |  |
Common stock dividends | (34,860) | (33,741)
Increase (decrease) in short-term borrowings from non-affiliates and affiliate with original maturities of three months or less | 11,407 | 120,485
Proceeds from other bank borrowings | 644,000 | 60,000
Other | (4,257) | (4,043)
Net cash provided by financing activities | 23,008 | 179,278
Net increase (decrease) in cash and cash equivalents | 17,199 | (17,096)
Cash and cash equivalents, beginning of period | 169,208 | 261,881
Cash and cash equivalents, end of period | 186,407 | 244,785
Consolidating adjustments |  |
Cash flows from operating activities |  |
Net income | (11,849) | (9,325)
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Equity in earnings of subsidiaries | 11,849 | 9,325
Common stock dividends received from subsidiaries | (6,311) | (6,827)
Depreciation of property, plant and equipment | 0 | 0
Other amortization | 0 | 0
Deferred income taxes | 0 | 0
Allowance for equity funds used during construction | 0 | 0
Other | 0 | 0
Changes in assets and liabilities |  |
Decrease in accounts receivable | (15,083) | 1,662
Decrease in accrued unbilled revenues | 0 | 0
Decrease (increase) in fuel oil stock | 0 | 0
Increase in materials and supplies | 0 | 0
Increase in regulatory assets | 0 | 0
Increase (decrease) in accounts payable | 0 | 0
Change in prepaid and accrued income taxes, tax credits and revenue taxes | 0 | 440
Increase in defined benefit pension and other postretirement benefit plans liability | 0 | 0
Change in other assets and liabilities | 15,083 | (1,662)
Net cash provided by operating activities | (6,311) | (6,387)
Cash flows from investing activities |  |
Capital expenditures | 0 | 0
Other | 18,700 | (9,000)
Advances (to) from affiliates | 0 | (440)
Net cash used in investing activities | 18,700 | (9,440)
Cash flows from financing activities |  |
Common stock dividends | 6,311 | 6,827
Preferred stock dividends of Hawaiian Electric and subsidiaries | 0 | 0
Increase (decrease) in short-term borrowings from non-affiliates and affiliate with original maturities of three months or less | (18,700) | 9,000
Proceeds from other bank borrowings | 0 |
Other | 0 | 0
Net cash provided by financing activities | (12,389) | 15,827
Net increase (decrease) in cash and cash equivalents | 0 | 0
Cash and cash equivalents, beginning of period | 0 | 0
Cash and cash equivalents, end of period | 0 | 0
Hawaiian Electric (parent only) | Reportable Legal Entities |  |
Cash flows from operating activities |  |
Net income | 32,396 | 27,745
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Equity in earnings of subsidiaries | (11,874) | (9,350)
Common stock dividends received from subsidiaries | 6,311 | 6,827
Depreciation of property, plant and equipment | 35,867 | 34,439
Other amortization | 5,740 | 3,237
Deferred income taxes | (2,757) | (271)
Allowance for equity funds used during construction | (2,447) | (2,887)
Other | (1,288) | 2,868
Changes in assets and liabilities |  |
Decrease in accounts receivable | 42,419 | (13,255)
Decrease in accrued unbilled revenues | 18,745 | 6,558
Decrease (increase) in fuel oil stock | (36,828) | (1,322)
Increase in materials and supplies | (475) | (1,095)
Increase in regulatory assets | (1,114) | (13,256)
Increase (decrease) in accounts payable | 6,251 | (2,028)
Change in prepaid and accrued income taxes, tax credits and revenue taxes | (25,874) | (25,892)
Increase in defined benefit pension and other postretirement benefit plans liability | 2,322 | (592)
Change in other assets and liabilities | (9,249) | 2,976
Net cash provided by operating activities | 58,145 | 14,702
Cash flows from investing activities |  |
Capital expenditures | (78,220) | (80,899)
Other | (9,500) | (3,000)
Advances (to) from affiliates | 1,221 | 269
Net cash used in investing activities | (86,499) | (83,630)
Cash flows from financing activities |  |
Common stock dividends | (25,313) | (25,826)
Preferred stock dividends of Hawaiian Electric and subsidiaries | (270) | (270)
Increase (decrease) in short-term borrowings from non-affiliates and affiliate with original maturities of three months or less | 15,199 | 104,984
Proceeds from other bank borrowings | 25,000 |
Other | 0 | (31)
Net cash provided by financing activities | 14,616 | 78,857
Net increase (decrease) in cash and cash equivalents | (13,738) | 9,929
Cash and cash equivalents, beginning of period | 16,732 | 2,059
Cash and cash equivalents, end of period | 2,994 | 11,988
HELCO | Reportable Legal Entities |  |
Cash flows from operating activities |  |
Net income | 5,303 | 6,235
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Equity in earnings of subsidiaries | 0 | 0
Common stock dividends received from subsidiaries | 0 | 0
Depreciation of property, plant and equipment | 10,453 | 10,055
Other amortization | 1,072 | 1,554
Deferred income taxes | (987) | (1,806)
Allowance for equity funds used during construction | (132) | (111)
Other | (145) | (103)
Changes in assets and liabilities |  |
Decrease in accounts receivable | 4,194 | (2,048)
Decrease in accrued unbilled revenues | 3,653 | 758
Decrease (increase) in fuel oil stock | 230 | (803)
Increase in materials and supplies | (883) | (550)
Increase in regulatory assets | (212) | (1,773)
Increase (decrease) in accounts payable | (4,253) | 4,050
Change in prepaid and accrued income taxes, tax credits and revenue taxes | (4,078) | (1,882)
Increase in defined benefit pension and other postretirement benefit plans liability | 313 | (198)
Change in other assets and liabilities | (5,783) | 2,875
Net cash provided by operating activities | 8,745 | 16,253
Cash flows from investing activities |  |
Capital expenditures | (8,371) | (14,505)
Other | (9,200) | 0
Advances (to) from affiliates | (293) | 264
Net cash used in investing activities | (17,864) | (14,241)
Cash flows from financing activities |  |
Common stock dividends | (2,544) | (3,821)
Preferred stock dividends of Hawaiian Electric and subsidiaries | (134) | (134)
Increase (decrease) in short-term borrowings from non-affiliates and affiliate with original maturities of three months or less | 0 | 3,000
Proceeds from other bank borrowings | 0 |
Other | (1) | (2)
Net cash provided by financing activities | (2,679) | (957)
Net increase (decrease) in cash and cash equivalents | (11,798) | 1,055
Cash and cash equivalents, beginning of period | 15,623 | 4,025
Cash and cash equivalents, end of period | 3,825 | 5,080
Maui Electric | Reportable Legal Entities |  |
Cash flows from operating activities |  |
Net income | 6,775 | 3,319
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Equity in earnings of subsidiaries | 0 | 0
Common stock dividends received from subsidiaries | 0 | 0
Depreciation of property, plant and equipment | 7,627 | 5,972
Other amortization | (98) | 553
Deferred income taxes | 617 | 497
Allowance for equity funds used during construction | (331) | (296)
Other | (384) | (84)
Changes in assets and liabilities |  |
Decrease in accounts receivable | 5,633 | (1,396)
Decrease in accrued unbilled revenues | 3,435 | 103
Decrease (increase) in fuel oil stock | 34 | 275
Increase in materials and supplies | (23) | 350
Increase in regulatory assets | (3,714) | (1,871)
Increase (decrease) in accounts payable | (2,925) | 3,121
Change in prepaid and accrued income taxes, tax credits and revenue taxes | (4,716) | (5,532)
Increase in defined benefit pension and other postretirement benefit plans liability | 356 | (148)
Change in other assets and liabilities | (3,449) | 349
Net cash provided by operating activities | 8,837 | 5,212
Cash flows from investing activities |  |
Capital expenditures | (16,300) | (14,723)
Other | 0 | 12,000
Advances (to) from affiliates | (134) | 510
Net cash used in investing activities | (16,434) | (2,213)
Cash flows from financing activities |  |
Common stock dividends | (3,767) | (3,006)
Preferred stock dividends of Hawaiian Electric and subsidiaries | (95) | (95)
Increase (decrease) in short-term borrowings from non-affiliates and affiliate with original maturities of three months or less | 9,500 | 0
Proceeds from other bank borrowings | 0 |
Other | (1) | 0
Net cash provided by financing activities | 5,637 | (3,101)
Net increase (decrease) in cash and cash equivalents | (1,960) | (102)
Cash and cash equivalents, beginning of period | 3,421 | 6,332
Cash and cash equivalents, end of period | 1,461 | 6,230
Other subsidiaries | Reportable Legal Entities |  |
Cash flows from operating activities |  |
Net income | 0 | 0
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Equity in earnings of subsidiaries | 0 | 0
Common stock dividends received from subsidiaries | 0 | 0
Depreciation of property, plant and equipment | 0 | 0
Other amortization | 0 | 0
Deferred income taxes | 0 | 0
Allowance for equity funds used during construction | 0 | 0
Other | 0 | 0
Changes in assets and liabilities |  |
Decrease in accounts receivable | 0 | 0
Decrease in accrued unbilled revenues | 0 | 0
Decrease (increase) in fuel oil stock | 0 | 0
Increase in materials and supplies | 0 | 0
Increase in regulatory assets | 0 | 0
Increase (decrease) in accounts payable | 0 | 0
Change in prepaid and accrued income taxes, tax credits and revenue taxes | 0 | 0
Increase in defined benefit pension and other postretirement benefit plans liability | 0 | 0
Change in other assets and liabilities | 0 | 0
Net cash provided by operating activities | 0 | 0
Cash flows from investing activities |  |
Capital expenditures | 0 | 0
Other | 0 | 0
Advances (to) from affiliates | 0 | 0
Net cash used in investing activities | 0 | 0
Cash flows from financing activities |  |
Common stock dividends | 0 | 0
Preferred stock dividends of Hawaiian Electric and subsidiaries | 0 | 0
Increase (decrease) in short-term borrowings from non-affiliates and affiliate with original maturities of three months or less | 0 | 0
Proceeds from other bank borrowings | 0 |
Other | 0 | 0
Net cash provided by financing activities | 0 | 0
Net increase (decrease) in cash and cash equivalents | 0 | 0
Cash and cash equivalents, beginning of period | 101 | 101
Cash and cash equivalents, end of period | 101 | 101
Hawaiian Electric Company, Inc. and Subsidiaries |  |
Cash flows from operating activities |  |
Net income | 32,625 | 27,974
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Equity in earnings of subsidiaries | (25) | (25)
Common stock dividends received from subsidiaries | 0 | 0
Depreciation of property, plant and equipment | 53,947 | 50,466
Other amortization | 6,714 | 5,344
Deferred income taxes | (3,127) | (1,580)
Allowance for equity funds used during construction | (2,910) | (3,294)
Other | (1,817) | 2,681
Changes in assets and liabilities |  |
Decrease in accounts receivable | 37,163 | (15,037)
Decrease in accrued unbilled revenues | 25,833 | 7,419
Decrease (increase) in fuel oil stock | (36,564) | (1,850)
Increase in materials and supplies | (1,381) | (1,295)
Increase in regulatory assets | (5,040) | (16,900)
Increase (decrease) in accounts payable | (927) | 5,143
Change in prepaid and accrued income taxes, tax credits and revenue taxes | (34,668) | (32,866)
Increase in defined benefit pension and other postretirement benefit plans liability | 2,991 | (938)
Change in other assets and liabilities | (3,398) | 4,538
Net cash provided by operating activities | 69,416 | 29,780
Cash flows from investing activities |  |
Capital expenditures | (102,891) | (110,127)
Other | 0 | 0
Advances (to) from affiliates | 794 | 603
Net cash used in investing activities | (102,097) | (109,524)
Cash flows from financing activities |  |
Common stock dividends | (25,313) | (25,826)
Preferred stock dividends of Hawaiian Electric and subsidiaries | (499) | (499)
Increase (decrease) in short-term borrowings from non-affiliates and affiliate with original maturities of three months or less | 5,999 | 116,984
Proceeds from other bank borrowings | 25,000 | 0
Other | (2) | (33)
Net cash provided by financing activities | 5,185 | 90,626
Net increase (decrease) in cash and cash equivalents | (27,496) | 10,882
Cash and cash equivalents, beginning of period | 35,877 | 12,517
Cash and cash equivalents, end of period | $ 8,381 | $ 23,399

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