Sunday, October 6, 2024
Hawai'i Free Press

Current Articles | Archives

Friday, January 19, 2024
Hawaii offers a case study on the inadequacies of wind and solar
By Selected News Articles @ 3:51 PM :: 1789 Views :: Energy, Environment

Hawaii offers a case study on the inadequacies of wind and solar

Rolling blackouts could prove deadly in Michigan winters

by Jason Hayes, Mackinac Center for Public Policy, January 19, 2024   

Rolling blackouts in the Aloha State presage things to come in Michigan.

Michigan’s new net-zero and “100% clean energy” policies mirror Hawaii’s “goal of 100% renewable energy by 2045.” These energy plans are causing both states to rely on more weather-dependent wind and solar, which means that reliability issues are becoming more pronounced.

On Jan. 8 and 9, heavy rains hit much of the island of Oahu. News releases from Hawaiian Electric, the island’s main electric utility, explained that during the storm two large generating units at the Waiau Power Plant had gone offline. In an email, company officials said that water damaged a control system at one plant. The system at a second plant “tripped after a tie-in to the grid was damaged, likely by weather.”

That was unfortunate timing, for as the utility noted, it had also recently taken several generation units offline for scheduled maintenance. Lower electricity demand at this time of year lets the company plan maintenance outages that are not possible in the summer, when air conditioning drives greater customer demand.

In the email, utility officials said they had “plenty of reserve margin until we didn’t,” which is when the two big plants went down. For readers who may not be familiar with utility-speak, reserve margin is effectively a cushion that helps a company supply its customers with the electricity they want. “A reserve margin of 15% means that an electric system has excess capacity in the amount of 15% of expected peak demand,” as the Energy Information Administration explains.

Reserve margin capacity must also be dispatchable. In layman’s terms, that means the generating facility can produce electricity when it is needed, as opposed to when weather conditions allow. When utilities close dispatchable fossil fuel plants and attempt to replace them with non-dispatchable wind and solar, their ability to reliably supply electricity suffers when the weather doesn’t cooperate.

Officials at Hawaii Electric said that “for most big outages, it’s never just one thing. It’s always a confluence of unexpected events happening all at once.” Behind this confluence, however, is a policy choice, Joe Kent, executive director of the Grassroot Institute of Hawaii, says. “Hawaii's mandate to reach 100% renewable by the year 2045 is happening simultaneous to the updating of its out-of-date infrastructure, and therefore, reliable power is needed now more than ever. But renewable energy is not well-suited to provide reliable power generation.”

Information from Hawaiian Electric backs up Kent’s statement. “Due to heavy cloud cover and rainy conditions across the island, production from solar energy systems [was] reduced and battery energy storage systems could not charge to full capacity,” it said online. Energy generation from wind facilities “started to fall off significantly” and “due to insufficient generation, earlier this evening Hawaiian Electric began ‘load shedding.’”

Load shedding means systematically shutting off customers to, in the utility’s words, “avoid a more widespread outage or damage to the electric system from an imbalance of too much demand versus too little available generation.”

"If we want to avoid blackouts in the future,” Kent says, “Hawaii policymakers need to ask tough questions about whether the renewable mandate goal is feasible, given the challenges involved.”

High on the list of those challenges is the state’s aging generation and transmission infrastructure. On both the mainland and in Hawaii, the electric grid has increasingly been powered by a more diverse mix of reliable energy options — nuclear, natural gas, coal, fuel oil, biomass and hydroelectric.

As states implement net-zero mandates, utilities are moving away from that diversity. In its place they move toward a system that uses natural gas as a backup for reliably unreliable wind and solar. But with that type of system, a disruption in gas supplies that coincides with a lull in the wind or sun can easily bring on blackouts and supply shortages. In periods of high demand — during storms, or in very hot or very cold weather — a lull in wind or solar generation, or a disruption in gas supplies, can produce the same outcome.

To its credit, Hawaiian Electric is planning to replace the aging oil-fired steam boilers at the Waiau Power Plant with dispatchable and “fuel-flexible” simple-cycle combustion turbines. “The new units will use the same technology employed by aviation or jet turbine engines and can run on biodiesel, diesel and potentially hydrogen,” the company says. “The technology allows for quick start up and shut down, which will result in fewer operating hours compared to the existing steam turbine boilers that the new units will replace.”

Kent’s demand for answers from policymakers grows more pressing as more states force a transition to non-dispatchable power sources. Is it reasonable to expect that utilities can complete systemwide upgrades as they also work toward 100% renewable energy goals?

Hawaii offers a case study on the feasibility of a government-driven energy transition. Hawaii’s utilities can’t depend on the electric grids in other states, so the state becomes a place where we can see if wind and solar can stand on their own, or if they're just grid parasites with good PR. Right now, some states on the mainland can ditch fossil fuels because they’re still connected to other states with fossil fuels, allowing them to make up for bad energy choices.

Prioritizing net-zero over grid reliability means that we’re pushing our electric grid to the edge. The more we rely on weather-dependent generation sources, the more we put our lives, health, and safety at risk should the wind not blow or the sun not shine.

Links

TEXT "follow HawaiiFreePress" to 40404

Register to Vote

2aHawaii

Aloha Pregnancy Care Center

AntiPlanner

Antonio Gramsci Reading List

A Place for Women in Waipio

Ballotpedia Hawaii

Broken Trust

Build More Hawaiian Homes Working Group

Christian Homeschoolers of Hawaii

Cliff Slater's Second Opinion

DVids Hawaii

FIRE

Fix Oahu!

Frontline: The Fixers

Genetic Literacy Project

Grassroot Institute

Habele.org

Hawaii Aquarium Fish Report

Hawaii Aviation Preservation Society

Hawaii Catholic TV

Hawaii Christian Coalition

Hawaii Cigar Association

Hawaii ConCon Info

Hawaii Debt Clock

Hawaii Defense Foundation

Hawaii Family Forum

Hawaii Farmers and Ranchers United

Hawaii Farmer's Daughter

Hawaii Federation of Republican Women

Hawaii History Blog

Hawaii Jihadi Trial

Hawaii Legal News

Hawaii Legal Short-Term Rental Alliance

Hawaii Matters

Hawaii Military History

Hawaii's Partnership for Appropriate & Compassionate Care

Hawaii Public Charter School Network

Hawaii Rifle Association

Hawaii Shippers Council

Hawaii Together

HiFiCo

Hiram Fong Papers

Homeschool Legal Defense Hawaii

Honolulu Navy League

Honolulu Traffic

House Minority Blog

Imua TMT

Inouye-Kwock, NYT 1992

Inside the Nature Conservancy

Inverse Condemnation

July 4 in Hawaii

Land and Power in Hawaii

Lessons in Firearm Education

Lingle Years

Managed Care Matters -- Hawaii

MentalIllnessPolicy.org

Missile Defense Advocacy

MIS Veterans Hawaii

NAMI Hawaii

Natatorium.org

National Parents Org Hawaii

NFIB Hawaii News

NRA-ILA Hawaii

Obookiah

OHA Lies

Opt Out Today

Patients Rights Council Hawaii

Practical Policy Institute of Hawaii

Pritchett Cartoons

Pro-GMO Hawaii

RailRipoff.com

Rental by Owner Awareness Assn

Research Institute for Hawaii USA

Rick Hamada Show

RJ Rummel

School Choice in Hawaii

SenatorFong.com

Talking Tax

Tax Foundation of Hawaii

The Real Hanabusa

Time Out Honolulu

Trustee Akina KWO Columns

Waagey.org

West Maui Taxpayers Association

What Natalie Thinks

Whole Life Hawaii