science

Regional entity

Regional entity is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Regional entity rather than just read about it. In short: A regional entity (RE) in the North American power transmission grid is a regional organization representing all segments of the electric industry: electric utilities (investor-owned, cooperatives, state, regional, and municipal), federal agencies, independent power producers, power market operators, and end-users of the energy. North American Electric Reliability Corporation (NERC) delegates to REs authority to enf…

Key takeaways

Regional entity belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Regional entity to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Regional entity from memory before moving on to harder problems.

Reference excerpt

A regional entity (RE) in the North American power transmission grid is a regional organization representing all segments of the electric industry: electric utilities (investor-owned, cooperatives, state, regional, and municipal), federal agencies, independent power producers, power market operators, and end-users of the energy. North American Electric Reliability Corporation (NERC) delegates to REs authority to enforce reliability standards (which NERC has throughout the contiguous United States), collectively REs, together with NERC, are known as an "ERO Enterprise" (from the Electric Reliability Organization).

History The regional entities, at the bottom of the structure for the development and enforcement of the reliability standards for the US electric grid, were established by the Section 215 of the Federal Power Act as amended by the Energy Policy Act of 2005. The statute tried to mimic the balance of power between the federal and state authorities in the US, with REs playing the role of regional (state-like) components. As of 2021, there were six regional entities:

Midwest Reliability Organization (MRO); Northeast Power Coordinating Council (NPCC); ReliabilityFirst (RF); SERC Reliability Corporation (SERC); Texas Reliability Entity (Texas RE); Western Electricity Coordinating Council (WECC). The original list included eight entities, two REs were later dissolved:

Southwest Power Pool regional entity operation was dissolved in 2018 (by merging into MRO), Florida Reliability Coordinating Council was dissolved in July 2019 (by merging into SERC).

Functions The reliability standard development process had Regional Entities developing regional standards, to be approved by NERC and FERC. By the 2010, the process was slow: just nine standards were developed, all by the WECC. An RE approves the transmission plans and chooses the projects for regional (as opposed to per-local-pricing-zone) cost allocation. One of the important roles of an RE is suggesting to NERC (and FERC) to include the facilities into - or exclude from - the list of "elements" that constitute the bulk-power system (BPS, also known as a "bulk electric system", BES), subject to the oversight of the NERC.

References

Sources North American Electric Reliability Corporation (August 2013). "Frequently Asked Questions" (PDF). nerc.com. NERC. Retrieved 5 November 2022. North American Electric Reliability Corporation (May 11, 2021). "Balancing and Frequency Control" (PDF). nerc.com. NERC. Archived from the original (PDF) on 17 January 2024. Retrieved 5 November 2022. Carpentier, Deborah (22 August 2014). "NERC and Enforcement Issues: NERC Provides New Definition of Bulk Electric System" (PDF). Natural Gas & Electricity. 31 (2): 29–32. doi:10.1002/gas.21785. ISSN 1545-7893. Skees, J. Daniel (June 2010). "Inventing the Future of Reliability: FERC's Recent Orders and the Consolidation of Reliability Authority". The Electricity Journal. 23 (5): 7–15. Bibcode:2010ElecJ..23e...7S. doi:10.1016/j.tej.2010.04.015. ISSN 1040-6190.

External links ERO Enterprise | Regional Entities (NERC Web site)

Illustrations

Worked examples

Example 1 — a first encounter with Regional entity

Start with the simplest possible case. Write down what Regional entity claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Regional entity before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Regional entity ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Regional entity

In research: Regional entity appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Regional entity in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Regional entity is common in secondary-school and first-year university syllabi. It links to neighbouring topics Electric grid interconnections in North America, Electricity stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Regional entity outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Regional entity in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Regional entity means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Regional entity out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Regional entity in simple terms?

Why does Regional entity matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Regional entity?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Regional entity.