Are streetlights, photocells, smart nodes, and poles a contractor installs for a public power authority subject to Tennessee sales and use tax?

Plain-English summary

A contractor that designs and installs energy-efficiency upgrades signed contracts with local power authorities in Tennessee to modernize their streetlight infrastructure — installing LED streetlights, photocells (which switch lights on and off by ambient light), "smart nodes," and, occasionally, poles. It asked whether its purchase and installation of those items is subject to Tennessee sales and use tax.

The Department said no — they're exempt under the statute that covers building publicly owned electric systems. The reasoning:

• Contractors normally owe a "contractor's use tax." When a contractor uses tangible personal property to perform a contract, Tennessee taxes it on the purchase price — unless an exemption applies.
• But materials for a publicly owned electric system are exempt. Tennessee exempts materials and equipment used to construct or install an electric generating plant or distribution system that is owned or operated by the government (the U.S., the State, a political subdivision) or a rural electric cooperative. A Department rule (Rule 102) ties this to property that becomes a "component part" of that system.
• These streetlights are "component parts" of the distribution system. This was the close question — streetlights, photocells, and smart nodes are arguably oriented to consuming electricity rather than distributing it, and don't move electrons through the grid. But the Department found several factors decisive: the items are permanently attached to the distribution lines, installed before the service drops where private customers connect, located in the utility-only "safety zone," and included in the PILOT (payment-in-lieu-of-taxes) calculation the utility makes to the taxing jurisdiction. On balance, they are component parts of the publicly owned distribution system — so they're exempt.

What this means for you

Contractors building or upgrading government-owned utility systems

If you install materials and equipment that become part of an electric generating plant or distribution system owned or operated by a government body or a rural electric co-op, your purchases can be exempt from sales and use tax — overriding the usual contractor's use tax. The exemption is tied to the public ownership of the system and to the property becoming a component part of it. Document both.

"Component part" is the battleground

The exemption hinges on whether your item is a component part of the exempt system. Helpful factors here: permanent attachment to the system, placement before the consumer connection point, accessibility limited to the utility, and inclusion in the utility's PILOT valuation. Items that merely sit near the system, or that are removed during installation without becoming part of it, may not qualify.

Don't overread it to private projects

This turned on government (or co-op) ownership of the electric system. The same hardware installed on a privately owned system would not get this particular exemption. Confirm who owns or operates the system before assuming the exemption applies.

Accountants and advisors

The governing exemption is § 67-6-209(e), implemented by Rule 1320-05-01-.102 ("Rule 102"); the contractor's use tax it overrides is § 67-6-209(b) (with the "dealer" definition at § 67-6-102(23)(K), rate at § 67-6-203, and the exempt-use carve-out at § 67-6-209(c)). The Department read "electric plant"/"distribution system" using the Municipal Electric Plant Law of 1935 (§ 7-52-102(3)) and the PILOT scheme in the Municipal Electric System Tax Equivalent Law of 1987 (§ 7-52-302 et seq.), plus FERC's uniform accounts (which group street lighting within a distribution system). For "component part," see Kingsport Pub. Corp. v. Olsen.

Common questions

Q: Don't contractors always pay use tax on what they install?
A: As a default, yes — the "contractor's use tax." But Tennessee exempts materials and equipment that become component parts of a publicly owned electric generating plant or distribution system, and that exemption applied here.

Q: Why are streetlights "part of the distribution system" if they just consume power?
A: It was a close call. The Department weighed that the items are permanently attached to the distribution lines, installed before the customer service drops, accessible only to the utility, and included in the utility's PILOT valuation — and concluded they are component parts of the distribution system.

Q: Would this exemption apply on a privately owned system?
A: No. The exemption depends on the electric system being owned or operated by a government body (or a qualifying rural electric cooperative). Private-system installations don't get this exemption.

Q: Can my business rely on this ruling?
A: No. A Tennessee letter ruling binds the Department only as to the taxpayer it was issued to and cannot be relied on by anyone else; it can be revoked or modified. Use it to understand the Department's reasoning, then confirm your own facts.

Citations and references

Statutes (Tennessee Code Annotated):
- § 67-6-209(e) — exempts materials/equipment used to construct or install an electric generating plant or distribution system owned or operated by the U.S., the State, a political subdivision, or a rural electric cooperative
- § 67-6-209(b) — contractor's use tax on TPP used to perform a contract
- § 67-6-209(c) — contractor's use tax does not apply where the contractor and use would be exempt
- § 67-6-203 — use tax rate
- § 67-6-102(23)(K) — definition of "dealer" (a contractor using TPP to perform a contract)
- § 7-52-102(3) — Municipal Electric Plant Law of 1935; "electric plant" includes generation, transmission, and distribution systems and appurtenances
- § 7-52-302 — Municipal Electric System Tax Equivalent Law of 1987 (PILOTs on municipal electric systems)

Rules (Tenn. Comp. R. & Regs.):
- 1320-05-01-.102 (Rule 102) — TPP that becomes a component part of a publicly owned electric generating plant or distribution system is exempt

Cases:
- Kingsport Pub. Corp. v. Olsen, 667 S.W.2d 745 (Tenn. 1984) — a "component part" must be chemically or mechanically incorporated into the finished product

Source

• Landing page: https://www.tn.gov/revenue/tax-resources/legal-resources/tax-rulings.html
• Original PDF: https://www.tn.gov/content/dam/tn/revenue/documents/rulings/sales/24-04.pdf

Original ruling text

Letter rulings are binding on the Department only with respect to the individual taxpayer being
addressed in the ruling. This ruling is based on the particular facts and circumstances
presented and is an interpretation of the law at a specific point in time. The law may have
changed since this ruling was issued, possibly rendering it obsolete. The presentation of this
ruling in a redacted form is provided solely for informational purposes and is not intended as
a statement of Departmental policy. Taxpayers should consult with a tax professional before
relying on any aspect of this ruling.

Applicability of Tennessee sales and use tax to streetlights and related equipment and materials on
behalf of public power authorities.

This letter ruling is an interpretation and application of the tax law as it relates to a specific set of
existing facts furnished to the Department by the taxpayer. The rulings herein are binding upon the
Department and are applicable only to the individual taxpayer being addressed.
This letter ruling may be revoked or modified by the Commissioner at any time. Such revocation or
modification shall be effective retroactively unless the following conditions are met, in which case the
revocation shall be prospective only:
(A)
(B)
(C)
(D)
(E)

The taxpayer must not have misstated or omitted material facts involved in the
transaction;
Facts that develop later must not be materially different from the facts upon
which the ruling was based;
The applicable law must not have been changed or amended;
The ruling must have been issued originally with respect to a prospective or
proposed transaction; and
The taxpayer directly involved must have acted in good faith in relying upon the
ruling; and a retroactive revocation of the ruling must inure to the taxpayer’s
detriment.

[REDACTED] (the “Taxpayer”) [REDACTED] develops, designs, and implements projects to improve
energy efficiency and reduce costs for electric power generation and distribution systems.
[REDACTED- IDENTIFYING INFORMATION]
The Taxpayer entered contracts with local power authorities in Tennessee to upgrade those
authorities’ streetlight infrastructure. Streetlight upgrades frequently fulfill many policy goals at once–
improving safety for motorists and pedestrians, enhancing quality of life for residents, and
significantly improving energy efficiency and reliability of the electric distribution system.

Streetlights
Modern power grids comprise four stages: generation, transmission, distribution, and service drops
where private parties may connect to the grid. High-voltage transmission lines carry electricity over
long distances, while medium-voltage distribution systems more safely deliver power from power
generators and transmission lines to most residential, commercial, and industrial users. The final
stage begins at service drops that deliver electricity into homes and businesses at the lowest and
safest voltages.
Streetlights have been a feature of electric distribution systems since the earliest days of electric
power. Integrating streetlights directly into power lines and poles has reduced costs, raised funds, and
secured public support for both the lighting of streets and distribution of electricity. Additionally,
power companies are well positioned to efficiently build and operate streetlights by safely connecting
them to more dangerous, yet more efficient power, while spreading the cost among the users who
are most directly served by both the lines and the lights. At the same time, streetlights provide direct
benefits of safety and security to distribution lines and offset the inconvenience that distribution
systems may cause to nearby residents and businesses. A trained utility worker can quickly and safely
see things in the way lights are working or not working that might otherwise require the difficult and
dangerous task of accessing overhead or underground lines. Each light—on or off, flickering or
stable—provides data that the utility worker can use when diagnosing and locating the problem.
Taxpayer’s Installation
The Taxpayer installs streetlights, photocells, and smart nodes into distribution systems owned and
operated by political subdivisions of Tennessee. In rare cases, the Taxpayer will replace and/or add
poles, which can be standalone poles, shared infrastructure poles, and decorative poles. These public
power authorities expect the streetlights, photocells, and smart nodes to reduce energy use by
[PERCENTAGE] and to significantly reduce operational and maintenance expenses for their
distribution systems. The reduced energy use is achieved by updating to modern LED and solid-state
lighting solutions. Photocells automatically turn a streetlight on or off based on the available light
level. Additionally, the installation of “smart nodes,” an integrated technology, improves the
performance of the electric distribution system by [SPECIFIC FUNCTIONALITY]. The Taxpayer installs
smart nodes on many of its projects, including all of the Taxpayer’s large projects. The authorities hire
the Taxpayer – rather than purchase and install these technologies directly – because of the Taxpayer’s
greater experience and expertise in the highly technical and specialized field of electrical distribution
systems and technologies.
All of the streetlights, photocells, smart nodes, and poles discussed in this ruling will be directly
attached in a permanent manner to the power authorities’ electric distribution lines and are intended
to remain in place for their useful life. The Taxpayer will install these assets at points in the system
before the service drops that allow private customers to connect to the electric grid. The point where
they connect is within what the industry calls the “safety zone,” where only electric companies and
those qualified to work with their electric distribution systems may service, alter, or remove them. The
streetlights, photocells, smart nodes, and poles are included in the calculation of the payment in lieu
of taxes (the “PILOTs”) paid by a utility to a taxing jurisdiction pursuant to the Municipal Electric System
Tax Equivalent Law of 1987.

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Is the Taxpayer’s purchase and installation of streetlights, photocells, smart nodes, and poles on
behalf of public power authorities subject to sales and use tax?
Ruling: No. The streetlights, photocells, smart nodes, and poles are exempt from sales and use tax
pursuant to TENN. CODE ANN. § 67-6-209(e).

Under the Retailer’s Sales Tax Act, retail sales in Tennessee of tangible personal property and
specifically enumerated services are subject to the sales tax, unless an exemption applies.1 Use tax,
which is generally regarded as a complement to the sales tax, similarly applies, absent an exemption.
In this case, the application of use tax to a contractor is at issue.
TENN. CODE ANN. § 67-6-209(b) states that where a contractor or subcontractor defined as a “dealer” 2
uses tangible personal property in the performance of a contract, or to fulfill contract or subcontract
obligations “such contractor shall pay at the rate prescribed by § 67-6-203 measured by the purchase
price of such property.” Consequently, under Tennessee law, a contractor is liable for the “contractor’s
use tax” when the contractor uses tangible personal property in the performance of a contract, unless
an exemption applies.3
TENN. CODE ANN. § 67-6-209(e) (2022) exempts “the sale or use of materials and equipment purchased
or used for construction or installation, by a contractor, subcontractor or otherwise, of, in or as part
of any electric generating plant or distribution system” that is “owned or operated by the United States
or any agency thereof created by an act of congress, or by the state of Tennessee or any agency or
political subdivision thereof, or any authority organized pursuant to the Rural Electric and Community
Services Cooperative Act, compiled in title 65, chapter 25”.
TENN. COMP. RULE & REGS. 1320-05-01-.102 (1974) (“Rule 102”) states that tangible personal property
which actually becomes a component part of an electric generating plant or distribution system
owned or operated by a political subdivision of the State of Tennessee is exempt from sales or use
tax. Rule 102 clarifies that the exemption does not apply to any tangible personal property as a part
of such a system, nor does it apply to tangible personal property or to a taxable service that is used
in the process of installing the exempt property, when such property does not become a component
part of the electric generating plant or distribution system.
Here, the electric distribution systems are owned or operated by political subdivisions of Tennessee,
or authority organized pursuant to the Rural Electric and Community Services Cooperative Act,
compiled in title 65, chapter 25. Accordingly, this analysis turns on whether the streetlights, photocells,
and smart nodes installed by the Taxpayer are “component parts” of an electric generating plant or
distribution system.
The relevant terms in Rule 102, “electric generating plant,” “distribution system,” and “component
parts,” are not defined in the sales tax law, but other sections of the Tennessee Code provide the
guidance that the distribution system is a part of the electric plant system which includes the
generation, transmission, and distribution systems. Under the Municipal Electric Plant Law of 1935,
Tennessee Retailer’s Sales Tax Act, Ch 3, §§ 1-18, 1947 Tenn. Pub. Acts Ch. 22, §§ 2254 (codified as amended at TENN. CODE ANN.
§§ 67-6-101 to -907 (2022 & Supp. 2023).
1

2

TENN. CODE ANN. § 67-6-102(23)(K) (Supp. 2023).

3

TENN. CODE ANN. § 67-6-209(c) (2022).

3

“electric plant” is defined as “generating, transmission, or distribution systems, together with all other
facilities, equipment and appurtenances necessary or appropriate to any such systems for the
furnishing of electric power and energy for lighting, heating, power or any other purpose for which
electric power and energy can be used.”4
Relatedly, the Municipal Electric System Tax Equivalent Law of 1987 sets forth the complete law of
Tennessee with respect to PILOTs on the property and operations of all electric systems owned and
operated by incorporated cities or towns, by counties, and by metropolitan governments.5 PILOT
amounts are determined based partly on a calculation that includes the property tax multiplied by
the net plant value of the electric plant and the book value of materials and supplies within the taxing
jurisdiction.6 The PILOT statutory scheme defines “electric system” as all tangible and intangible
property and resources of every kind and description used or held for use in the purchase, generation,
transmission, distribution, and sale of electric energy.7
In addition, terms appearing in the Municipal Electric System Tax Equivalent Law of 1987 that are not
specifically defined have the same meanings defined or ascribed to them in the Federal Energy
Regulation Commission’s (the “FERC’s”) uniform system of accounts applicable to electric system
operations.8 The FERC, which prescribes uniform accounting rules and definitions for public power
companies, categorizes “street lighting and signal systems” as one group of assets that make up a
distribution system.9
The common understanding of an electric distribution system is a system that supplies and distributes
electricity to users in a particular area. “Distribute” is defined in part as: to divide among several; to
spread out as to cover something; to give out or deliver especially to members of a group; to place or
position so as to be properly apportioned throughout an area. 10 "Component part” is not defined for
sales tax purposes, but its general definition is “something (as a building or part of a building) that
cannot be removed without substantial damage to itself or to the immovable property to which it is
attached.”11 In a case involving whether materials became component parts for purposes of the
industrial materials exemption, the Supreme Court of Tennessee has held that the materials must
have “actually gone into the finished product as an ingredient or component, that such an exemption
applies only to such personal property as has been chemically or mechanically incorporated into the
finished product.”12
Looking at the issue from a common perspective, poles that provide support for power lines are
incorporated into the distribution system, while streetlights, photocells, and smart nodes are more
oriented to the consumption of electricity. In other words, the contributions that streetlights,
photocells, and smart nodes make to the electric distribution system are tangential, providing a more

4

TENN. CODE ANN. § 7-52-102(3) (2024).

5

TENN CODE ANN. § 7-52-302.

6

TENN. CODE ANN. § 7-52-304(1)(A).

7

TENN. CODE ANN. § 7-52-303(a)(4) (2024).

8

TENN. CODE ANN. § 7-52-303(b).

See Uniform System of Accounts Prescribed for Public Utilities and Licensees Subject to the Provisions of the Federal Power
Act, 18 C.F.R. Pt. 101 (2024).
9

10

Merriam Webster’s Collegiate Dictionary, Eleventh Edition, Merriam Webster Inc. (2007).

11

Id.

12

Kingsport Pub. Corp. v. Olsen, 667 S.W. 2d, 745, 746 (Tenn. 1984).

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holistic contribution to the distribution of electricity; they do not play a functional role in distributing
electrons through the system, nor do they generate any electricity. Nevertheless, the Department has
previously recognized that it has applied the exemption to a distribution system that is not on private
property and will include in the system all components from the source of the electricity through and
including the transformers that lead to each building.13 The items at issue here are incorporated into
the power authorities’ distribution system because they attach to the distribution system before the
service drops that distribute the power to private parties, and are only accessible by those authorized
from the electric companies. Finally, the streetlights, photocells, smart nodes, and poles are integrated
in functionality and by physical means to the distribution system.
In the absence of clear definitions for electric distribution systems and component parts, a number
of factors weigh in favor of finding that the streetlights, photocells, smart nodes, and poles are a
component part of the electric distribution system under Rule 102. Those items are directly attached
in a permanent manner to the power authorities’ electric distribution lines, attached before consumer
drop points in a location where only electric companies would have access, and are included in the
calculation of the PILOTs paid by a utility to a taxing jurisdiction pursuant to the Municipal Electric
System Tax Equivalent Law of 1987. Accordingly, the streetlights, photocells, smart nodes, and poles
are exempt from sales and use tax.

APPROVED:

David Gerregano
Commissioner of Revenue

DATE:

June 4, 2024

See Tenn. Dept. of Rev. Ltr. Rul. 99-03, https://www.tn.gov/content/dam/tn/revenue/documents/rulings/sales/99-03.pdf (last
accessed on April 1, 2024).
13

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