By Editors of Power Engineering
The Hawai’i Public Utilities Commission approved a plan by the Hawaiian Electric Companies to take steps that would lead to the utility generating 100 percent of the state’s electricity from renewable sources by 2045.
The plan, undertaken on all five islands served by Hawaiian Electric, Maui Electric and Hawai’i Electric Light, calls for new renewable resources including 400 MW of new renewable generation by 2021, rooftop solar, energy storage, new inverters and control systems to maintain grid reliability.
“After review, commission has reasonable assurance that many of the actions identified … are credible, supported by sound judgment and analysis, informed by stakeholder input and consistent with state energy policy and prior commission orders,” the commission stated.
Hawaiian Electric has forecast 48 percent renewable energy by the end of 2020, 72 percent by the end of 2030 and 100 percent by the end of 2040.
The plan exceeds the state’s mandates of 30 percent renewable energy by 2020, 40 percent by 2030, 70 percent by 2040 and 100 percent by 2045.
Island by island, 2020’s forecast is for Hawai’I to have 80 percent renewable energy, Maui to have 63 percent, Lana’I to have 59 percent, O’ahu to have 40 percent and Moloka’I to have 100 percent.