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Credit agreements and long-term debt
9 Months Ended
Sep. 30, 2017
Debt Disclosure [Abstract]  
Credit agreements and long-term debt
Credit agreements and long-term debt
Credit agreements. HEI and Hawaiian Electric each entered into a separate agreement with a syndicate of eight financial institutions (the HEI Facility and Hawaiian Electric Facility, respectively, and together, the Facilities), effective July 3, 2017, to amend and restate their respective previously existing revolving unsecured credit agreements. The $150 million HEI Facility extended the term of the facility to June 30, 2022. The $200 million Hawaiian Electric Facility has an initial term that expires on June 29, 2018, but its term will extend to June 30, 2022 upon approval by the PUC during the initial term, which approval is currently being requested. As of September 30, 2017 and December 31, 2016, no amounts were outstanding under the Facilities or previously existing facilities.
The Facilities will be maintained to support each company’s respective short-term commercial paper program, but may be drawn on to meet each company’s respective working capital needs and general corporate purposes.
Changes in long-term debt. On June 29, 2017, the Department of Budget and Finance of the State of Hawaii (Department) for the benefit of the Utilities, issued, at par:
 
Refunding Series 2017A Special Purpose Revenue Bonds
Refunding Series 2017B Special Purpose Revenue Bonds
Aggregate principal amount
$125 million
$140 million
Fixed coupon interest rate
3.10%
4.00%
Maturity date
May 1, 2026
March 1, 2037
Department loaned the proceeds to:
 
 
Hawaiian Electric
$62 million
$100 million
Hawaii Electric Light
$8 million
$20 million
Maui Electric
$55 million
$20 million

Proceeds from the sale were applied to redeem at par bonds previously issued by the Department for the benefit of the Utilities:
 
Refunding Series 2007B Special Purpose Revenue Bonds
Series 2007A Special Purpose Revenue Bonds
Aggregate principal amount
$125 million
$140 million
Fixed coupon interest rate
4.60%
4.65%
Maturity date
May 1, 2026
March 1, 2037

Subsequent event - changes in debt.    
October 2017 loan.  On October 6, 2017, HEI entered into a loan agreement with The Bank of Tokyo-Mitsubishi UFJ, Ltd., which agreement includes substantially the same financial covenant and customary conditions as the loan agreement with The Bank of Tokyo-Mitsubishi UFJ, Ltd. and U.S. Bank, National Association that matured on the same date. On October 6, 2017, HEI drew a $125 million Eurodollar loan for a term of 364 days at resetting interest rates.  The initial Eurodollar Borrowing was for a one month interest period at an annualized interest rate of 1.99%. The proceeds from this loan were used to pay off the $125 million maturing loan.