DUKQueued from the May 25, 2026 S&P 500 market-cap snapshot ranks 101-125; refreshed with public company, market-data, annual-report, and open-energy sources accessed on 2026-05-27.

Duke Energy

Duke Energy is a regulated U.S. electric and natural gas utility holding company serving customers across the Carolinas, Florida, Indiana, Ohio and Kentucky.

Metadata

Where this company sits

Ticker
DUK
Rank snapshot
≈ 112
Sector
Utilities
Industry
Electric Utilities
Region
United States
Index
S&P 500 · Top 125 by market cap

Metrics

Scoring view

Every metric is paired with a short rationale. The numbers are deliberate, not divine.

Moat

88.0/10

Regulated monopoly-style service territories, generation capacity, transmission and distribution assets, rate-case recovery, storm operations, and customer scale create a very strong incumbent moat.

Decentralizability

36.0/10

Core utility delivery is capital-intensive and regulated, but behind-the-meter solar, storage, demand response, open energy management, and microgrids can decentralize parts of generation, monitoring, and load flexibility.

Profitability

76.0/10

Duke reported 2024 adjusted EPS of $5.90 and highlighted sustained financial performance supported by rate cases, riders, generation growth, grid investments, and regulatory execution.

Price / Earnings

19.2x

CompaniesMarketCap reported Duke Energy's trailing P/E ratio at about 19.2 as of May 2026.

Market cap

$97.5B

CompaniesMarketCap reported Duke Energy's market capitalization at about $97.51 billion in May 2026.

Freed-up capital potential

$0.0

Derived from market cap, moat resistance, decentralizability, and profitability. It is a directional estimate of value capture that could come under pressure if open alternatives compound.

Narrative

Why the company matters

A short editorial overview plus the current thesis on moat strength and decentralization pressure.

Business Profile

Duke Energy is one of the largest U.S. energy holding companies, with regulated electric utilities serving millions of customers and owning a large generation fleet across six states.

Its natural gas utilities serve customers in several overlapping states, making the company primarily a regulated infrastructure operator rather than a competitive energy retailer.

Registry Relevance

Duke Energy's market position comes from franchised service territories, regulated rate recovery, grid ownership, generation assets, and the operational complexity of reliable electricity and gas delivery.

The most credible decentralization pressure is not a direct peer replacing Duke Energy overnight, but a gradual shift toward distributed generation, open energy management, microgrid coordination, storage, demand response, and building electrification.

Moat reading

Duke Energy has a strong utility moat because electric and gas service territories, transmission and distribution assets, regulatory relationships, generation planning, storm response capability, and capital access are hard to replicate.

The moat is reinforced by regulated rate structures and long-duration infrastructure planning, but it is not unlimited: regulators, customer affordability concerns, distributed generation, energy efficiency, storage, and electrification can pressure load growth, capital plans, and allowed returns over time.

Decentralization reading

Duke Energy is structurally difficult to decentralize because bulk power reliability, poles-and-wires infrastructure, gas pipelines, storm restoration, interconnection, and safety regulation require coordination at regional scale.

The best decentralization path is modular and complementary: households, campuses, municipalities, and cooperatives can use open monitoring, energy management systems, batteries, solar, demand response, and microgrids to reduce dependence on centralized generation and make utility coordination more transparent.

Products

Where the moat actually touches users

These pages zoom into the products and services that matter most to each company, the alternatives already nibbling at them, and 4 structured disruption concepts across the current product set.

4 disruption concepts tracked0 documented exceptions
Electric utilities

Regulated electricity generation, transmission and distribution

2 concepts

Duke Energy generates, transmits, distributes, and sells electricity through regulated utilities serving customers across the Carolinas, Florida, Indiana, Ohio and Kentucky.

Open analysis
Natural gas utilities

Regulated natural gas distribution

2 concepts

Duke Energy's natural gas utilities distribute gas to customers in North Carolina, South Carolina, Ohio and Kentucky.

Open analysis

Technology waves

Strategic lenses

These are the repo's explicit bias terms: the technologies expected to keep making incumbents less inevitable over time.

Printable solar, localized wind, and home energy stacks

Cheaper distributed generation and better local energy management create more openings for community-scale infrastructure and self-custodied resilience.

  • Energy-related products should be viewed through interoperability and open-control surfaces.
  • Battery, charging, and home automation layers are increasingly separable from single-vendor stacks.
  • Incumbents that depend on closed energy ecosystems may look less inevitable over time.

Paper trail

Visible evidence trail

These sources shaped the scoring and writing. The site is opinionated, but it should not behave like it is improvising facts in a dark room.

Duke Energy 2024 Annual Report and Form 10-K

Duke Energy / SEC · annual report

Primary filing source for regulated utility operations, financial performance, risk factors, grid investment, storm response, climate planning, and distributed-energy context.

Reviewed 2026-05-27

Duke Energy (DUK) Market Capitalization

CompaniesMarketCap · market data

Market-data reference for Duke Energy's May 2026 market capitalization and public-company ranking context.

Reviewed 2026-05-27

Duke Energy (DUK) P/E Ratio

CompaniesMarketCap · market data

Market-data reference for Duke Energy's trailing P/E ratio as of May 2026.

Reviewed 2026-05-27

Free The World

Built as a research surface for tracking how AI, open source, Bitcoin rails, and distributed manufacturing steadily make legacy pricing models look like an elaborate historical accident.

Early-2026 public-source snapshot

Open source on GitHub

Commit 2970904 ·