Cybersecurity and Physical Security
Issue Brief

Grid Security

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The electric utility industry (including public power utilities) takes very seriously its responsibility to maintain a strong electric grid. It is the only critical infrastructure sector besides nuclear power that has mandatory and enforceable federal regulatory standards in place for cyber and physical security (collectively known as grid security). As the grid evolves, unfortunately, so do threats to its integrity. The threat of cyber-attacks is relatively new compared to long-known physical threats, but a cyberattack with operational consequences could occur and cause disrup­tions in the flow of power if malicious actors were able to hack into data systems used in some electric generation, transmission, and distribution infrastructure. The American Public Power Association (APPA or Association) believes that the industry itself, with the North American Electric Reliability Corpora­tion (NERC), has made great strides in addressing cybersecurity threats, vulnerabilities, and potential emergencies. Given the persistence of threats, APPA knows that utilities cannot prevent all attacks at all times. For both cyber and physical threats, electric utilities employ risk management programs to prioritize facilities and equipment, develop contingency plans, and em­ploy defense-in-depth techniques to keep the lights on.

Background and Congressional Action

The electric utility sector is the only critical infrastructure sector besides nuclear power plants (a part of the overall sector) that has a mandatory and enforceable federal regulatory regime in place for cybersecurity. Congress approved the standards regime for the bulk power system in the Energy Policy Act of 2005 (EPAct05) (section 215 of the Federal Power Act). Under sec­tion 215, NERC working with electric industry experts, regional entities, and government representatives, drafts reliability, physi­cal, and cyber security standards that apply across the North American grid, including Canada.1 Participation by industry experts and compliance personnel in the NERC standards development process ensures that the standards are technically sound, fair, and balanced. The Federal Energy Regulatory Com­mission (FERC) has the power to then approve or remand those standards as they apply in the United States. To ensure compli­ance, under FERC’s oversight, NERC conducts rigorous audits and can levy substantial fines for non-compliance. Additionally, FERC can instruct NERC to develop new or revised reliability standards with a very short turn-around time.


To date, the efforts of electric utilities to maintain a robust cybersecurity defense, along with the sector’s Federal Power Act (FPA) section 215 processes, have prevented a successful cyberattack from causing operational consequences on the bulk electric system in the United States. That said, APPA has long recognized that increased information sharing and appropriately tailored liability protection would further enhance the industry’s ability to guard against cyberattacks. As such, the Association strongly supported passage of the Cybersecurity Act of 2015, which was incorporated as Division N of H.R. 2029, the Con­solidated Appropriations Act, 2016. The act set up policies and procedures for sharing cybersecurity threat information between the federal government and private entities (which include public power) and between private entities and provides limited liability protection for these activities if conducted in accordance with the act.

In addition to the Cybersecurity Act of 2015, APPA strongly supported Section 61003 of P.L. 114-94 (the FAST Act), which codified the designation of the Department of Energy (DOE) as the Sector-Specific Agency for cybersecurity for the energy sector and gave the Secretary of Energy broader authority to address grid security emergencies under the FPA. A final rule entitled, “Grid Security Emergency Orders: Procedures for Issu­ance,” was issued on January 10, 2018. APPA encourages DOE to use existing protocols and procedures to consult with indus­try during these emergencies. The new authority also clarified the ability of FERC and other federal agencies to protect sensi­tive critical electric infrastructure information (CEII) from pub­lic disclosure under the Freedom of Information Act and other sunshine laws. Specifically, the provision directed that FERC-designated CEII be exempt from disclosure for a period of up to five years with a process to lift the designation or challenge it in court and established sanctions for the unauthorized disclosure of shared information. FERC issued a final rule to implement this provision on December 21, 2016. APPA encourages FERC to follow the procedures to protect all utility operational data given to it in mandatory regulatory filings.

Physical Security

NERC has considered proposals and issued regularly updated security guidelines to enhance the physical security of assets in the bulk electric system. In response to developing threat analy­ses in March 2014, FERC used its authority under section 215 of the Federal Power Act to direct NERC to submit within 90 days proposed reliability standards requiring utilities with criti­cal assets to take steps to address physical security vulnerabilities. NERC submitted a draft standard, known as CIP-014, to FERC in 77 days, which FERC subsequently approved.

The nation’s electric distribution systems have always been, and are today, regulated by state and local governments. This is a deliberate separation of power given the retail nature of dis­tribution systems, and the vast differences in the configuration, size, and ownership of the 3,000 distribution utilities in the U.S. Because of this diversity among distribution systems, each individual utility’s role in the security of its distribution facilities is paramount. While APPA supports physical security standards at the bulk power system, it does not support a federally legis­lated “one-size-fits-all” mandate on the distribution level due to the differences in systems and regions noted above.

Administrative Action

On May 11, 2017, President Trump signed an executive order (EO) entitled, “Strengthening the Cybersecurity of Federal Networks and Critical Infrastructure,” and directed DOE, along with government and industry stakeholders, to assess the poten­tial scope and duration of a prolonged power outage caused by a cyber attack and the readiness of the U.S. to manage such an incident. The report, issued in response to the EO on May 30, 2018, summarized its findings: “While it was found that no last­ing damage—physical, cyber-physical, or otherwise—has been observed from the cyberattacks and intrusions targeting U.S. electric utilities that have been reported to date, there are key trends that are increasing the risk of significant cyber incidents.” The report found that “existing capability gaps fall largely into seven main categories: cyber situational awareness and incident impact analysis; roles and responsibilities under cyber response frameworks; cybersecurity integration into state energy assur­ance planning; electric cybersecurity workforce and expertise; supply chain and trusted partners; public-private cybersecurity information sharing; and resources for national cybersecurity preparedness.”

President Trump’s EO built on the one issued by President Obama in February 2013 requiring the creation of a cyber­security framework, which was subsequently released by the National Institute for Science and Technology in February 2014. APPA has strongly encouraged its members to adopt this framework and evaluate their cybersecurity plans.

DOE and the Department of Homeland Security (DHS) reorganized some offices and efforts in 2018 to better address cybersecurity threats confronting the nation. In February 2018, Secretary of Energy Rick Perry announced the establishment of a new Office of Cybersecurity, Energy Security, and Emergency Response (CESER) at DOE to focus on “energy infrastructure security and support the expanded national security responsibili­ties assigned to DOE.” Karen Evans was confirmed to head the new office on August 28, 2018. In July 2018, then DHS Sec­retary Kirstjen Nielsen announced the creation of the National Risk Management Center (NRMC). Led by Director Robert Kolasky, the NRMC is pursuing a strategic approach to defend­ing all critical infrastructure sectors by focusing on vulner­abilities arising out of the interconnectedness of the sectors. On April 30, 2019, NRMC released a list of 55 critical functions, “so vital to the United States that their disruption, corruption, or dysfunction would have a debilitating effect on security, national economic security, national public health or safety, or any combination thereof.” For electricity, the critical functions are generation, transmission, and distribution of electricity. The list was developed in consultation with the critical infrastructure sectors and will guide further work to understand cross-sector dependencies and what resources are needed to restore critical functions after a major event.

Industry Action

Outside of the legislative process, APPA and its members, as well as other utilities, continue to participate in the NERC Critical Infrastructure Protection (CIP) standards drafting process on cyber and physical security. As attacks on critical electric infrastructure are ever-changing, so must be the nature of the industry’s defenses, which is why the CIP standards are regularly updated. For example, in June 2019, FERC approved an updated version of a standard for cyber security incident reports. The revised standard broadens the reporting obligations to require “reporting of cyber security incidents that either compromise or attempt to compromise” certain electronic systems.

APPA recognizes that robust grid security means more than mandatory CIP standards, which is why it is also involved with internal and external working groups to enhance the security of the electric grid. The Association and its members play a leadership role on the Electricity Subsector Coordinating Council (ESCC), one of the coordinating councils established in the National Infrastructure Protection Plan to facilitate ongoing communication between the sector (or subsector) and its sector-specific federal agency, which in the case of the ESCC is DOE. The ESCC, which meets three times a year, provides senior industry and government officials with a venue to coordinate sector-wide policies and initiatives to improve cyber and physical security and emergency preparedness. Through the ESCC, APPA works with the other critical infrastructure sectors, such as the telecommunications and finance sectors.

Regardless of the cause of damage to the electric system, preparations to ensure mitigation, response, and restoration are the same: grid operators prioritize risk to enhance protection around critical assets, engineer redundancy to avoid single points of failure, stockpile spare equipment for hard-to-replace components, and develop other contingencies to minimize impacts. The ESCC is involved in all aspects of these preparations.


Electric utilities plan and regularly exercise for a variety of emergency situations that could impact their ability to provide electricity. One such exercise, GridEx V, took place in November 2019 and involved over 500 organizations and 7,000 participants from industry, government agencies, and partners in Canada and Mexico. APPA was significantly involved in the planning for GridEx V to further allow distribution utilities to get value from the distributed play portion of the exercise. One hundred public power organiza­tions participated in the GridEx V distributed play, up from 53 that did so at GridEx IV in 2017. Managed by NERC and the Electricity Information Sharing and Analysis Center, GridEx V also included an executive tabletop exercise where 108 electric sector executives and senior U.S. government of­ficials worked through incident response protocols to address widespread outages. GridEx events are conducted every two years. An after-action report from GridEx V will be released in March 2020.

Mutual Assistance Programs

The three segments of the electric utility industry—public power, investor-owned, and rural electric cooperatives—have long had in place mutual aid response networks to share employees and resources to restore power after emergencies. In October 2019, APPA held the 2019 Public Power Mutual Aid Exercise in Syracuse, NY. This event was a functional tabletop exercise that included a category 5 hurricane im­pacting the U.S. Virgin Islands, Puerto Rico, and the south­east and northeast regions of the U.S. The exercise tested the capabilities of the mutual aid network, inter-organization and inter-agency coordination, and the tools and technolo­gies currently used to support mutual aid coordination.

The exercise was made possible with funds provided by a five-year cooperative agreement with DOE’s Infrastructure Security and Energy Restoration Division. Under the agree­ment, APPA is entitled to receive up to $200,000 a year to fund disaster response exercises and preparedness. This is the fifth budget year of the agreement.

Spare Equipment Program

Electric utilities regularly share transformers and other equip­ment through long existing bi- and multi-lateral sharing arrangements and agreements. The industry is expanding equipment sharing programs—like the Spare Transformer Equipment Program, SpareConnect, and Grid Assurance— to improve grid resiliency.

In addition, APPA has partnered directly with DOE, sign­ing a three-year cooperative agreement in 2016 for up to $2.5 million per year to accelerate the Association’s efforts to help its members understand and implement resiliency, cybersecurity, and cyber-physical solutions, including refining and improv­ing the adoption of advanced control concepts. Among other programs, this grant led to the development of a cybersecurity scorecard for public power utilities to assess their cyber readi­ness (328 have completed the scorecard thus far) and funded 31 tabletop exercises across the country between 2017 and 2019. In a report accompanying the Further Consolidated Appropria­tions Act, 2020 (H.R. 1865), Congress directed DOE to fund the program at $3 million for another year. Legislation based on the success of this program that would seek to permanently fund public-private partnerships to promote and advance the physical and cybersecurity of electric utilities, H.R. 359, the Enhancing Grid Security through Public-Private Partnerships Act, was ap­proved by the House Energy & Commerce Committee in Oc­tober 2019. H.R. 359 is sponsored by Representatives Bob Latta (R-OH) and Jerry McNerney (D-CA). Senators Cory Gardner (R-CO) and Michael Bennet (D-CO) sponsored a companion bill, S. 2095, which was approved by the Senate Energy & Natural Resources Committee in October 2019. APPA strongly supports H.R. 359 and S. 2095.

American Public Power Association Position

The regulations and standards (“NERC-FERC”) process set up in EPAct05 continues to provide a solid foundation for strengthening the industry’s security posture. These manda­tory standards evolve with input from subject-matter experts from across industry and government. However, the industry recognizes that it cannot protect all assets from all threats all the time, and instead must manage risk. APPA believes that close coordination among industry and government partners at all levels is imperative to deterring attacks and preparing for emer­gency situations and, as such, will continue to invest consider­able resources into this effort.

The Association supports the adoption by public power utili­ties of appropriate physical-security measures that consider the specific assets being secured. APPA also supports enhanced dia­logue between the industry and federal government on physical-security threats and potential remediation, but does not support federal mandates in this area at the distribution level because a one-size-fits-all approach would do little to secure those assets.


1. NERC is the electric reliability organization for North America, subject to oversight by the Federal Energy Regulatory Commission; it develops and enforces reliability standards for the bulk power system. The Electricity Information Sharing and Analysis Center serves as the primary security communications channel for the electricity sector.

2. Docket No. AD17-8-000