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Credit agreements and changes in debt (Tables) | 9 Months Ended
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Sep. 30, 2020
Debt Disclosure [Abstract] |
Schedule of Note Purchase Agreements | On May 14, 2020, the Utilities issued, through a private placement pursuant to separate note purchase agreements (NPAs), the following unsecured senior notes bearing taxable interest (May Notes):
|  | Series 2020A |  | Series 2020B |  | Series 2020C
Aggregate principal amount |  | $80 million |  | $60 million |  | $20 million
Fixed coupon interest rate |  |  |  |  |  |
Hawaiian Electric |  | 3.31% |  | 3.31% |  | 3.96%
Hawaii Electric Light |  | 3.96% |  |  |  |
Maui Electric |  | 3.31% |  | 3.96% |  |
Maturity date |  |  |  |  |  |
Hawaiian Electric |  | 5/1/2030 |  | 5/1/2030 |  | 5/1/2050
Hawaii Electric Light |  | 5/1/2050 |  |  |  |
Maui Electric |  | 5/1/2030 |  | 5/1/2050 |  |
Principal amount by company: |  |  |  |  |  |
Hawaiian Electric |  | $50 million (Green Bond) |  | $40 million |  | $20 million
Hawaii Electric Light |  | $10 million |  | — |  | —
Maui Electric |  | $20 million |  | $20 million |  | —
|  | Series 2020B |  | Series 2020C |  | Series 2020D |  | Series 2020E
Aggregate principal amount |  | $15 million |  | $40 million |  | $30 million |  | $30 million
Fixed coupon interest rate |  |  |  |  |  |  |  |
Hawaiian Electric |  |  |  |  |  | 3.28% |  | 3.51%
Hawaii Electric Light |  | 3.28% |  | 3.51% |  |  |  |
Maui Electric |  |  |  | 3.51% |  |  |  |
Maturity date (from funding) |  |  |  |  |  |  |  |
Hawaiian Electric |  |  |  |  |  | 20 years |  | 30 years
Hawaii Electric Light |  | 20 years |  | 30 years |  |  |  |
Maui Electric |  |  |  | 30 years |  |  |  |
Principal amount by company: |  |  |  |  |  |  |  |
Hawaiian Electric |  | — |  | — |  | $30 million |  | $30 million
Hawaii Electric Light |  | $15 million |  | $15 million |  | — |  | —
Maui Electric |  | — |  | $25 million |  | — |  | —

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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