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Renewable energy sources resulted in 2,328 gigawatt-hours*, or 26.8 percent, of electric sales in 2017, as reported to the Hawaii Public Utilities Commission in our annual Renewable Energy Portfolio status report. This does not include energy savings from solar water heating or quantifiable energy efficiency. The 2017 total is an increase from 2,283 gigawatt hours or 25.8 percent of sales in 2016.
Tri-company electricity sales in 2017 totaled 8,690 gigawatt-hours.
* A gigawatt-hour is a unit of electrical energy equal to one thousand megawatt hours, one million kilowatt-hours, or one billion watt-hours. A 100-watt bulb burning for one hour uses 100 watt-hours of electricity.
Where is this renewable energy coming from?
| Gigawatt-hours produced by utility and independent power producers for Hawaiian Electric, Maui Electric and Hawaii Electric Light Company customers in 2017 | |
|---|---|
| Wind | 533 |
| Biomass (including waste-to-energy) | 381 |
| Geothermal | 323 |
| Solar Photovoltaic | 143 |
| Hydro-electricity | 30 |
| Biofuels | 56 |
Percentage of sales from renewable energy
| Percentage of sales from renewable energy | |
|---|---|
| Hawaiian Electric | 20.8% |
| Hawaii Electric Light | 56.6% |
| Maui Electric | 34.2% |
Source: 2017 Renewable Energy Portfolio Status Report to the Public Utilities Commission.
