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Hawaiian Electric Co. needs to upgrade its distribution system to accommodate mushrooming rooftop solar.

The Trump administration recently decided to impose a 30 percent duty on imported solar panels to help U.S. panel makers.

A bill would delete a reference to continued use of fossil fuels and expand the standards to include natural gas.

A scathing report cites the office’s failure to document what it’s doing to help Hawaii’s transition to renewable energy resources.

A new Community-Based Renewable Energy program is designed to open the door for people previously shut out of the solar market

As solar systems and battery storage gain popularity, some say Hawaii’s law needs to catch up with the technology.

Burning more discards could save money as recycling gets more expensive, but environmentalists say it’s the cost of caring for the planet.

The military could generate all of its electricity from distributed renewable sources by 2025 using microgrids.

A startup is using former sugar cane land on the North Shore to “grow oil” — pongamia trees whose seeds can be turned into biofuel.

How HECO plans to replace that electricity for Oahu customers is still unknown but Hawaii’s last coal-fired power plant intends to shut down in just five years.