Hawaiian Electric Co Inc
Investor Owned electric utility · Hawaii · #121 of 3,199 U.S. utilities by customers · EIA utility #19547
Hawaiian Electric Co Inc is a investor owned electric utility serving 310,559 customers in Hawaii. In 2025 it sold 6,258 gigawatt-hours of electricity for $2.14B in revenue, an average realized rate of 34.19¢ per kWh across all customer classes and 40.54¢ per kWh for residential customers. Its reported service territory covers 1 counties. EIA records its activities as: generation, transmission, distribution.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 276,853 | 1,556 | $630.90M | 40.54¢ | |
| Commercial | 33,231 | 1,952 | $676.78M | 34.67¢ | |
| Industrial | 475 | 2,750 | $832.14M | 30.26¢ | |
| Total | 310,559 | 6,258 | $2.14B | 34.19¢ |
Average realized rate = revenue divided by sales as reported on EIA Form 861. It blends fixed charges, demand charges and riders into one per-kWh figure; it is not the utility's tariff rate. Estimated residential bill assumes the average residential customer's actual 2025 usage (468 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 308,098 | 6,170 | $1.77B | 32.47¢ |
| 2022 | 308,485 | 6,211 | $2.42B | 43.43¢ |
| 2023 | 309,292 | 6,138 | $2.32B | 43.22¢ |
| 2024 | 309,839 | 6,135 | $2.25B | 42.87¢ |
| 2025 | 310,559 | 6,258 | $2.14B | 40.54¢ |
Reliability (2025)
Average outage time (SAIDI): 202 minutes per customer per year
Average outages (SAIFI): 1.41 per customer
Average restoration time (CAIDI): 143 minutes
As reported for Hawaii under the Other standard, with major event days included where the standard reports them. Lower is better; see the reliability rankings.
Energy supply (2025)
Net generation: 3,926 GWh
Wholesale power purchased: 2,612 GWh
Winter peak demand: 1,010 MW
Energy losses: 4.1% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 96.3% of 310,208 meters
Customer-sited generation (net metering): 69,922 installations, 440.7 MW of capacity
Counties served
Honolulu, HI
Other large utilities in Hawaii
- Hawaii Electric Light Co Inc - 90,899 customers, residential 45.80¢
- Maui Electric Co Ltd - 71,962 customers, residential 41.97¢
- Kauai Island Utility Cooperative - 35,617 customers, residential 38.43¢
All Hawaii utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #19547 in the EIA frame.