Part of Grid Network »

The Grid Professionals Group covers electric current from its transmission step down to each customer's home. 


2021: Revaluing Reliability & Resilience

image credit: PCI
Patrick McGarry's picture
Senior Director / Customer Success PCI

Patrick recently joined PCI as a Senior Director in May, 2019. He owns over 32 years of experience in commodity trading and owns an extensive record working closely with energy market...

  • Member since 2004
  • 113 items added with 43,006 views
  • Jan 20, 2021

Many years ago, I attended an annual goal kick off meeting with a large public power company in the great state of Nebraska. We gathered to discuss and establish performance metrics for the upcoming year.

At the outset of the meeting, one of the executives opened by stating the reason why he felt so passionate about public power and the mission of the utility.

“When I was growing up as a young child in western Nebraska, we did not have power in my house. It was an experience that I will never forget. I come to work each day to ensure that our customers can always rely on us to deliver electricity.”

Talk about a great way to start a meeting!

Those words rang true that morning and still resonate with me today.

Sometimes, in the hustle and bustle of life, we can lose focus on the core reason why we choose to serve a higher purpose other than ourselves.

In the energy industry, regardless of your role, we all contribute to providing reliable power to our society in a safe and low-cost manner.

People often say, “You do not know what you have until you lose it.”

I disagree.

We do know the value of something before we build it. Otherwise, we would have never built it in the first place.

However, in the pursuit of progress and goals, we oftentimes lose appreciation for the value of what we built – until we experience not having it.

2020 turned out to be a year in which we lost many things we once took for granted. But. we did relearn the value of things like family, health, and a thriving economy.

In 2021, we need to accurately value reliability and resilience to make informed investment decisions and, we must value the benefits as accurately as the costs.

Author and poet Criss Jami once said, “Feel what it’s like to starve, and I guarantee that you’ll forever think twice before wasting food.”


Reliability & Resilience: What’s the Difference?


“…the outcome that all utilities continually strive for. It’s the result.”

To provide an effective, safe and reliable flow of electricity, reliability is about planning, operating and sustaining the electricity supply. For our customers, that means the internet works, the heat & air conditioning function, the lights come on, and industries continue to hum around the clock.

Within the electricity industry, reliability is very well established, and utilities and organized markets are responsible for several federal and industry requirements that ensure we maintain reliable operations.

But are we properly planning for shifts and disturbances for which there are no standards? Will we easily resist and recover from major disasters, organized attacks or any mixture of events that we have never experienced?

The answers to these questions define resiliency.


“…the ability of a utility to withstand certain failures in the pursuit of reliability and yet, deliver for their customers.”

Resilience has several dimensions and no norm suits them all.

Resilience is directly related to the principle of reliability. If you are not reliable at first, you will not be resilient. Resiliency entails planning for, working through and recovering from major disturbances, regardless of the cause.

It is about our capacity to survive events that are extreme or prolonged.

While some of these risks are considered in conventional reliability planning, today’s threats are constantly changing, and reliability standards may not be able to keep pace with the associated regulatory requirements.


Valuing Reliability & Resiliency

Long-term, widespread power interruptions (LDWIs) are those that last days, weeks or longer, and are frequently caused by severe weather, impacting entire utility service areas or wider regions.

The risks of long-term, widespread power interruptions (LDWIs) in are very worrisome for U.S. regulators and stakeholders. Randy Hardy, former BPA Administrator, began ringing the alarm bell of the impending Pacific Northwest Capacity shortage back in 2019. CAISO CEO Elliott Mainzer, recently told RTO Insider, “Without question, resource adequacy is job No. 1 for California.”

WECC recently warned the resource adequacy issue will only worsen as the region increasingly relies upon renewable resources.

The recent hacking of top federal agencies provides new concerns about potential future disruptions to the grid. To avoid such outages and expedite swift recovery, those tasked with making decisions on highly expensive investments require accurate information.

Through six different case studies, a recent report by Berkeley Lab addressed the following five questions that have important policy and long-term planning implications for reducing power system vulnerabilities.


Question #1
How do utilities assess the costs of system damage caused by extreme weather and the costs of recovering from this damage?

  • Finding: Utilities conducted detailed assessments of physical impacts on their systems. However, the cost categories are not reported across utilities in a consistent manner that allows for easy comparison.


Question #2
How do utilities estimate customer costs of past power interruptions?

  • Finding: Utilities do not monetize these impacts.


Question #3
How do utilities or others estimate the costs and benefits of investments to reduce power system vulnerabilities to future extreme weather events?

  • Finding: The costs of preventive investments can be estimated with reasonable accuracy, but the economic benefits are very uncertain. There is little or no evidence that avoided societal impacts other than customer cost are being formally included in cost-benefit analyses.


Question #4
How do utilities and regulators use the concept of resilience in economic assessments of extreme weather impacts and the value of preventive investments?

  • Finding: Utilities and regulators used the term “resilience” extensively in two of the six cases studied, less extensively in two others, and very little in the remaining two. However, what has changed from historical norms is the severity of extreme weather consequences for the power system has increased; therefore, the scale and cost of investments to address these risks have also increased.


Question #5
How do regulatory processes influence utilities’ economic analysis related to power interruptions?

  • Finding: Laws, regulations, and regulatory practices can significantly influence utilities’ preparation for, and response to, LDWIs.

The Berkeley Labs report indicated that further research would be beneficial to utilities and regulators dealing with risks associated with LDWIs. Topics for additional analysis include:

  • Assessing the value of consistent data collection on historic, extreme electric power-related events
  • Improve the economic analysis of impacts from LDWIs
  • Determine what the factors are that influence regulatory/utility willingness to incorporate the economic information associated with LDWIs into planning and other processes



A reliable and resilient power system has been the kernel of our economic growth and increases in our standard of living since the end of World War II. While most people today have never experienced life without electricity, we can all look back and reflect upon a time when we did not enjoy the benefits of today’s technological advances.

All brought to us by a reliable supply of electric power.

As we pivot into a year of recovery, assigning a proper dollar value on reliability and resilience will be the primary focus of 2021 for the energy industry. Failure to do so will impair our economic recovery and public policy goals.

The events of the past eleven months have left our economy in tatters and severely rattled the general psyche of our country. The road to recovery will take time and a reliable and resilient bulk power system will be the foundational block.

In a way, reliability and resilience are a bit like trust.

They’re difficult to define.

But, losing them results in adverse impacts that are easy to describe.

Originally published here. 

Patrick McGarry's picture
Thank Patrick for the Post!
Energy Central contributors share their experience and insights for the benefit of other Members (like you). Please show them your appreciation by leaving a comment, 'liking' this post, or following this Member.
More posts from this member
Spell checking: Press the CTRL or COMMAND key then click on the underlined misspelled word.
Matt Chester's picture
Matt Chester on Jan 20, 2021

As we pivot into a year of recovery, assigning a proper dollar value on reliability and resilience will be the primary focus of 2021 for the energy industry. Failure to do so will impair our economic recovery and public policy goals.

Well said, Patrick-- and it's interesting to see these questions be wrestled with in developed nations as well as how that contrasts with the discussion in the developing world which have not been able to rely on it as much. We want carbon-free power, we want a smart grid, we want all of these things-- but without the backbone of resilience and reliability, it's all for naught. 

Get Published - Build a Following

The Energy Central Power Industry Network is based on one core idea - power industry professionals helping each other and advancing the industry by sharing and learning from each other.

If you have an experience or insight to share or have learned something from a conference or seminar, your peers and colleagues on Energy Central want to hear about it. It's also easy to share a link to an article you've liked or an industry resource that you think would be helpful.

                 Learn more about posting on Energy Central »