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Consolidated Statements of Capitalization - HECO (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Common stock, authorized shares (in shares) | 200,000,000 | 200,000,000
Common stock, outstanding shares (in shares) | 109,311,785 | 109,181,124
Hawaiian Electric Company, Inc. and Subsidiaries |  |
Common stock, par value (in dollars per share) | $ 6.667 | $ 6.667
Common stock, authorized shares (in shares) | 50,000,000 | 50,000,000
Common stock, outstanding shares (in shares) | 17,753,533 | 17,324,376
Long-term debt | $ 1,684,000 | $ 1,569,000
Hawaiian Electric Company, Inc. and Subsidiaries | Special Purpose Revenue Bonds |  |
Long-term debt | $ 542,000 | 542,000
Hawaiian Electric Company, Inc. and Subsidiaries | Special Purpose Revenue Bonds | 3.50%, Series 2019, due 2049 |  |
Debt instrument, stated interest rate | 3.50% |
Long-term debt | $ 80,000 | 80,000
Hawaiian Electric Company, Inc. and Subsidiaries | Special Purpose Revenue Bonds | 3.20%, Refunding series 2019, due 2039 |  |
Debt instrument, stated interest rate | 3.20% |
Long-term debt | $ 150,000 | 150,000
Hawaiian Electric Company, Inc. and Subsidiaries | Special Purpose Revenue Bonds | 3.10%, Refunding series 2017A, due 2026 |  |
Debt instrument, stated interest rate | 3.10% |
Long-term debt | $ 125,000 | 125,000
Hawaiian Electric Company, Inc. and Subsidiaries | Special Purpose Revenue Bonds | 4.00%, Refunding series 2017B, due 2037 |  |
Debt instrument, stated interest rate | 4.00% |
Long-term debt | $ 140,000 | 140,000
Hawaiian Electric Company, Inc. and Subsidiaries | Special Purpose Revenue Bonds | 3.25%, Refunding series 2015, due 2025 |  |
Debt instrument, stated interest rate | 3.25% |
Long-term debt | $ 47,000 | 47,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes |  |
Long-term debt | $ 1,142,000 | 1,027,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 3.96%, Series 2020A, 2020B and 2020C, due 2050 |  |
Debt instrument, stated interest rate | 3.96% |
Long-term debt | $ 50,000 | 50,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 3.51%, Series 2020C and 2020E, due 2050 |  |
Debt instrument, stated interest rate | 3.51% |
Long-term debt | $ 70,000 | 0
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 3.28%, Series 2020B and 2020D, due 2040 |  |
Debt instrument, stated interest rate | 3.28% |
Long-term debt | $ 45,000 | 0
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 3.31%, Series 2020A and 2020B, due 2030 |  |
Debt instrument, stated interest rate | 3.31% |
Long-term debt | $ 110,000 | 110,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 4.21%, Series 2019A, due 2034 |  |
Debt instrument, stated interest rate | 4.21% |
Long-term debt | $ 50,000 | 50,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 4.38%, Series 2018A, due 2028 |  |
Debt instrument, stated interest rate | 4.38% |
Long-term debt | $ 67,500 | 67,500
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 4.53%, Series 2018B, due 2033 |  |
Debt instrument, stated interest rate | 4.53% |
Long-term debt | $ 17,500 | 17,500
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 4.72%, Series 2018C, due 2048 |  |
Debt instrument, stated interest rate | 4.72% |
Long-term debt | $ 15,000 | 15,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 4.31%, Series 2017A, due 2047 |  |
Debt instrument, stated interest rate | 4.31% |
Long-term debt | $ 50,000 | 50,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 4.54%, Series 2016A, due 2046 |  |
Debt instrument, stated interest rate | 4.54% |
Long-term debt | $ 40,000 | 40,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 5.23%, Series 2015A, due 2045 |  |
Debt instrument, stated interest rate | 5.23% |
Long-term debt | $ 80,000 | 80,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 4.45%, Series 2013A and 2013B, due 2022 |  |
Debt instrument, stated interest rate | 4.45% |
Long-term debt | $ 52,000 | 52,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 4.84%, Series 2013A, 2013B and 2013C, due 2027 |  |
Debt instrument, stated interest rate | 4.84% |
Long-term debt | $ 100,000 | 100,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 5.65%, Series 2013B and 2013C, due 2043 |  |
Debt instrument, stated interest rate | 5.65% |
Long-term debt | $ 70,000 | 70,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 4.55%, Series 2012B and 2012C, due 2023 |  |
Debt instrument, stated interest rate | 4.55% |
Long-term debt | $ 100,000 | 100,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 4.72%, Series 2012D, due 2029 |  |
Debt instrument, stated interest rate | 4.72% |
Long-term debt | $ 35,000 | 35,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 5.39%, Series 2012E, due 2042 |  |
Debt instrument, stated interest rate | 5.39% |
Long-term debt | $ 150,000 | 150,000
Hawaiian Electric Company, Inc. and Subsidiaries | Senior notes | 4.53%, Series 2012F, due 2032 |  |
Debt instrument, stated interest rate | 4.53% |
Long-term debt | $ 40,000 | $ 40,000
Hawaiian Electric Company, Inc. and Subsidiaries | Preferred Stock $20 Par Value |  |
Preferred stock, authorized shares (in shares) | 5,000,000 | 5,000,000
Preferred stock, par value (in dollars per share) | $ 20 | $ 20
Hawaiian Electric Company, Inc. and Subsidiaries | Preferred Stock $100 Par Value |  |
Preferred stock, authorized shares (in shares) | 7,000,000 | 7,000,000
Preferred stock, par value (in dollars per share) | $ 100 | $ 100
Hawaiian Electric | Series C, 4.25% Preferred Stock |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20
Preferred stock, stated dividend rate | 4.25% | 4.25%
Hawaiian Electric | Series D, 5.00% Preferred Stock |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20
Preferred stock, stated dividend rate | 5.00% | 5.00%
Hawaiian Electric | Series E, 5.00% Preferred Stock |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20
Preferred stock, stated dividend rate | 5.00% | 5.00%
Hawaiian Electric | Series H, 5.25% Preferred Stock |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20
Preferred stock, stated dividend rate | 5.25% | 5.25%
Hawaiian Electric | Series I, 5.00% Preferred Stock |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20
Preferred stock, stated dividend rate | 5.00% | 5.00%
Hawaiian Electric | Series J, 4.75% Preferred Stock |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20
Preferred stock, stated dividend rate | 4.75% | 4.75%
Hawaiian Electric | Series K, 4.65% Preferred Stock |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20
Preferred stock, stated dividend rate | 4.65% | 4.65%
Hawaii Electric Light | Series G, 7.625% Preferred Stock |  |
Preferred stock, par value (in dollars per share) | $ 100 | $ 100
Preferred stock, stated dividend rate | 7.625% | 7.625%
Maui Electric | Series H, 7.625% Preferred Stock |  |
Preferred stock, par value (in dollars per share) | $ 100 | $ 100
Preferred stock, stated dividend rate | 7.625% | 7.625%

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