Summary: The 2023 NESC® delivers essential updates that strengthen grid resilience, improve electrical safety, and support the integration of emerging technologies across the energy sector. As demand surges and climate pressures intensify, these standards provide the framework utilities need to build and maintain a reliable, future‑ready grid.

Since our initial look at the energy sector’s evolution, the landscape has shifted from preparing for change to operating in a new reality. Moreover, with U.S. electricity demand projected to grow at a 3.6% CAGR through 2030, the grid must be more than just functional. AI data centers and the rapid electrification of transportation are driving this growth. Therefore, it must be resilient, adaptive, and engineered for extreme conditions.

The 2023 National Electrical Safety Code (NESC®) is the definitive response to these pressures.

The Critical Importance of the 2023 Updates

The NESC® is revised every five years to keep pace with technological innovation. The current edition, which became effective on 1 February 2023, specifically addresses the “new normals” of the energy industry:

• Grid Resilience & Climate Adaptation: As shifting weather patterns alter historical loading statistics, these updates ensure that transmission structures can withstand localized weather extremes. Older codes didn’t fully account for such extremes.
• Emerging Technologies: The code now provides clearer guidelines for integrating Solar, Wind, and Battery Energy Storage Systems (BESS). This “future-proofing” is essential as the U.S. prepares for an estimated $1 trillion in grid investment over the next decade.
• Operational Safety & Functional Recovery: The NESC® emphasizes rapid restoration of critical services. This ensures that hospitals, water systems, and emergency operations can return to service immediately after hazard events.

Real-World Impact: Why These Updates Matter

Utilities are already applying the 2023 National Electrical Safety Code® to:

• Prevent structural failures during ice storms and heat waves
• Improve safety margins for crews working near energized equipment
• Reduce operations and maintenance costs through modernized design and work practices
• Ensure renewable and storage assets integrate safely into the grid

The code is not theoretical, it’s practical engineering guidance that prevents outages and saves lives.

Why the IEEE NESC Course Program is Essential

Understanding why a rule changes is what elevates a practitioner into a leader. The distribution system is one of the most complex engineered systems in the world, and its public exposure leaves no room for error.

The IEEE NESC® 2023 course program provides a comprehensive, expert‑led deep dive into the latest updates. It is taught by the professionals who helped write the standards.

Key Learning Outcomes:

• Safety Protocol Mastery: In‑depth coverage of Part 4 (Work Rules) to protect field personnel.
• Structural Integrity and Design: Practical application of updated loading rules to prevent overhead line failures.
• Economic and Operational Optimization: How modern standards reduce operating costs while improving reliability.

Lead the Energy Transition with Confidence

The 2023 NESC® is more than a code, it’s a blueprint for building the resilient, intelligent grid required for the future. By completing the IEEE NESC® 2023 Course Program, you ensure your organization is prepared to design, operate, and maintain infrastructure that meets today’s demands and tomorrow’s challenges.

Individuals can access the program on the IEEE Learning Network, earning professional development credits and a shareable digital badge upon completion.

For organizational access, connect with an IEEE content specialist to begin your enrollment.

 

If you’ve seen solar panels on rooftops or wind power generated off coastal locales, you’re witnessing examples of DERs. Use of smart thermostats, electric vehicles, EV charging systems, fuel cells, or heat pumps also shows DERs. Additionally, participation in a local microgrid demonstrates the use of distributed energy resources, also known as DERs.

According to the U.S. Environmental Protection Agency (EPA), distributed energy resources involve “a variety of technologies that generate electricity at or near where it will be used” rather than centralized sources. DERs support single homes, businesses, huge industrial facilities, college campuses, and entire municipalities. This is often achieved through a microgrid that connects to a central utility’s distribution lines. They are popular because they reduce electricity costs, improve power quality, and support renewable energy. They’ve become increasingly popular.

Benefits of Distributed Energy Resources

Thanks to DERs, homes and businesses can reduce grid dependence. The grid is aging, with portions over a century old. DERs also minimize power outage risks, which are rising due to severe storms and disasters. At the same time, DERs offer users greater control. They allow users to generate energy for personal use, sell it, or modify demand.

As such, one doesn’t have to look far to see evidence of the growing market and demand for DERs worldwide. For instance:

• On the solar panel front, Fortune Business Insights predicts the global solar power market will nearly double. It is expected to grow from US$254 billion in 2023 to US$437 billion by 2032.
• Statista projects the global battery energy storage market will grow from US$5 billion in 2023 to US$18 billion by 2030, more than tripling.
• Electric cars, which were 2% of all vehicles globally in 2018, accounted for about 18% of cars sold in 2023.
• Smart thermostat sales in the U.S. are set to triple, growing from roughly US$1.3 billion in 2022 to US$3.9 billion by 2029.

Growing Demand

The outlook for DERs continues to be positive. Declining initial price points are driving demand for these technologies. Additionally, federal support and funding through the Inflation Reduction Act are boosting demand. They offer financial rebates and incentives to encourage adoption. Similarly, the U.S. Federal Energy Regulatory Commission’s Order No. 222 will compensate DER owners for power provided to the grid. According to the World Resources Institute, this will create “a new long-term value stream for the people and entities using these resources.”

Similar actions are happening globally to support DER proliferation. In Europe, the ‘European Green Deal’ and ‘Clean Energy for all Europeans’ initiatives promote renewable energy sources and DERs. The International Energy Agency confirms DERs are crucial for China’s energy transformation.

Ultimately, experts confirm that the ongoing transition to DERs will promote a more reliable, energy-efficient, and equitable energy system worldwide.

Challenges Abound

While DERs offer benefits such as resilience, cost-effectiveness, and sustainability, challenges exist too.

Harmonious operation of these systems requires investments in new technology. With many small-scale DERs activated worldwide, experts warn of potential issues. Integration with central power sources can lead to quality, compatibility, and reliability challenges. These will need more grid management control.

For these reasons, the IEEE Standard 1547 is crucial. It ensures the interconnection, interoperability, and safety of DERs connected to the grid.

“Before this standard, connecting renewable energy to the grid was challenging.” Christopher Sanderson, an industry expert, explained, “Each technology had its own protocols and requirements.” The IEEE Standard 1547 allows different DERs to work together seamlessly, he stated. It ensures electricity from various sources is reliably and efficiently integrated into the grid.

Navigate IEEE Standard 1547 Through a Targeted Course Program

Introduction to IEEE Standard 1547-2018: Connecting Distributed Energy Resources is a six-course program by IEEE. It trains technical teams on implementing this important standard. The course covers testing, verification, interoperability, and power quality issues from DER-grid interconnections.

Connect with an IEEE Content Specialist today to learn more about getting access to this program for your organization.

Interested in access for yourself? Visit the IEEE Learning Network (ILN).

 

Resources

Hurst, R.W. What is Distributed Generation? Distributed Energy Resources. The Electricity Forum.

Distributed Generation of Electricity and its Environmental Impacts. United States Environmental Protection Agency.

Richmond-Crosset, Kyle and Greene, Zachary. (30 September 2022). How Distributed Energy Resources Can Lower Power Bills, Raise Revenue in US Communities. World Resources Institute.

(May 2022). Unlocking the Potential of Distributed Energy Resources. International Energy Agency.

Ali, Junaid. (16 August 2024). The Future of Energy and Distributed Power. Forbes.

(5 August 2024). Solar Power Market Size, Share & Industry Analysis, By Technology. Fortune Business Insights.

Sanderson, Christopher. (30 June 2024). The Power of Standards: How IEEE-1547 Shapes Our Energy Future. LinkedIn.

Will Distributed Energy Resources (DERs) Change How We Get Our Energy? European Parliament.

Prospects for Distributed Energy Systems in China. International Energy Agency.

By their very nature, engineers are expert planners. They are trained to take many factors into consideration as they design, construct, and maintain a broad range of complex systems. These systems and structures are used across the market’s wide variety of industries and applications. However, one variable that’s proven more difficult to account for over the years when it comes to electric grid resiliency has been the weather and its increasingly volatile nature.

According to a recent report by the American Meteorological Society, climate change is leading to more extreme weather around the world. It is increasing the risk of everything from violent storms to unprecedented heat waves, floods, droughts, and other natural disasters.

Resilient Electric Grids in the Face of Weather Events

The growing incidence and severity of weather events has had an especially significant impact on electric grids worldwide. A recent report from science and technology organization Climate Central confirms that the resultant frequency of weather-related power outages is rising.

“We’re going to require a more robust grid than was built previously,” said Jen Brady, a lead analyst for Climate Central.

Consider Hurricane Ian, a Category 4 hurricane, whose widespread storm surge knocked out power to 2.7 million customers in Florida— nearly 25% of the state’s residents— in September 2022. Another example is Storm Ciarán, whose 100 mph winds resulted in power outages for millions of residents across multiple countries in November 2023. Elsewhere, Typhoon Lan knocked out power to tens of thousands of customers throughout western Japan in August 2023. Moreover, over 2.1 million customers lost power following a powerful storm that hit Sao Paulo, Brazil in November 2023. More than 500,000 homes and businesses in southeastern Australia’s capital region lost power in February 2024. This was after a violent storm damaged a major power plant’s transmission network.

The fact is, many electric grid systems worldwide haven’t caught up to the climate reality we’re now experiencing globally. As a result, planning for unforeseen weather emergencies has become more essential. Taking steps to ensure the increased resiliency of electric grids is crucial for utilities and the communities they serve.

In response, electric utilities worldwide are engaging in a variety of proactive initiatives to “harden” their systems. According to Power Magazine, these measures include upgrades to the quality, capacity, and efficiency of transmission circuits and components. Plus, employment of tree-trimming and other vegetation management activities. Moreover, they are using artificial intelligence platforms to better predict the impact of forecasted storms. Finally, the installation of intelligent sensors and smart meters to help identify and restore power outages.

Starting From the Ground Up

Electric reliability and grid resiliency take on another meaning altogether for the estimated 750-800 million people around the world. This group, nearly 10% of the world’s population, currently has no access to electricity at all. The majority of the affected population live in sub-Saharan African countries such as the Democratic Republic of the Congo, Madagascar, and Ethiopia. Here, and in other underdeveloped regions, the establishment of “minigrids” is the quickest and most cost-effective way to bring power to remote locations. These places lack large, central electric grids.

Distributing electricity generated by renewable sources such as solar panels, wind turbines, battery storage, hydropower, and diesel generators, minigrids are a solution. Due to their sustainable design and reliance on renewable power sources, The World Bank believes minigrids can provide electricity to up to 500 million people by 2030. Minigrids can also reduce the world’s carbon footprint.

The construction and activation of minigrids is already making positive inroads globally. For example, recently implemented hydro-powered minigrids have brought much-needed electricity to over 1.5 million people in Nepal. Elsewhere, a system of nearly two dozen minigrids distributes energy to over 10,000 rural residents of West Bengal, India. Additionally, thanks to US$150 million in funding from The World Bank, Kenya’s government recently announced plans to build 137 solar minigrids. These are designed to provide electricity to nearly 300,000 households in remote sectors of the nation.

Enabling Access

Minigrids hold great promise for providing access to electricity in undeveloped communities worldwide. This is especially true in Africa, where the use of minigrids could impact the greatest number of people most quickly.

IEEE encourages professionals to learn more about minigrids. This effort to adopt and accelerate their deployment in communities can offer significant benefits.

Through Minigrids in Africa, a four-course program from IEEE, learners are introduced to the distinct opportunities and challenges. These arise when deploying electric minigrids that provide reliable power to millions of people in Africa, where many currently have no access to any sources of electricity. Topics include the contextual, technological, regulatory, and policy considerations for minigrids in Africa, as well as their design and deployment, operation, and future on that continent.

This course program is ideal for everyone from minigrid engineers, project managers, developers, and entrepreneurs. National grid engineers, managers, and policy and regulatory professionals can also benefit.

Connect with an IEEE Content Specialist today to learn how to get access to this program for your organization.

If you’re interested in access for yourself, visit the IEEE Learning Network (ILN).

 

Resources

Allard, Anthony. (18 August 2022). Preparing the Grid for an Above-Average Hurricane Season. Power Magazine.

Karlin, Sam. (9 October 2022). Hurricanes Ian and Ida Hammered Two States’ Electric Grids. Nola.com.

Deger, Bill. (5 November 2023). Storm Ciarán Turns Deadly in Northern Europe, as 100-mph Winds Knock Out Power For Millions. AccuWeather. 

Hersher, Rebecca. (9 January 2023). Climate Change Makes Heat Waves, Storms and Droughts Worse, Climate Report Confirms. NPR.

Boadle, Anthony and Moreira, Camila. (6 November 2023). Hundreds of Thousands Still Without Power Days After Storm Hits Brazil’s Largest City. Reuters.

Proffer, Erica. (6 October 2022). A New Report Shows Weather-Related Power Outages ono the Rise. KVUE.

Haun, Andy. (12 April 2019). Micro or Mini: There’s a Grid Type for Every Energy Need. Microgrid Knowledge.

Wood, Elisa. (28 March 2020). What is a Microgrid? Microgrid Knowledge.

(25 June 2019). Mini Grids for Half a Billion People: Market Outlook and Handbook for Decision Makers. The World Bank.

Africa Minigrids Program.

The Africa Minigrids Program. United Nations Development Programme.

(27 February 2023). Solar Mini Grids Could Sustainably Power 380 Million People in Africa by 2030 – if Action is Taken Now. The World Bank.

Mwirigi, Cosmas. (14 March 2023). Kenya to Combat Rural Energy Access Gap With Over 130 solar Minigrids. PV Magazine.