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Onslow County, NC Solar Energy: Panel Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Permitted districts
RA, L-IN, and H-IN zoning districts
Height limit
20 feet from highest natural grade
Residential setback
100 feet from existing dwellings
Street setback
30 feet from public/private rights-of-way
Military notice
30 days before technical review, to Camp Lejeune
Governing section
Onslow County Code § 9.13(K)

Summary

Onslow County permits ground-mounted solar electricity systems by right in the Rural Agricultural, Light Industrial, and Heavy Industrial districts under Section 9.13(K). The systems must meet street and property-line setbacks, a 20-foot height cap, and a recorded decommissioning plan before installation.

These county ordinances apply to unincorporated areas of Onslow County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

K.SOLAR ELECTRICITY SYSTEM, GROUND MOUNTED 1.Intent a.The intent of the Onslow County Planning and Development Department is that the site plans for Ground Mounted Solar Electricity Systems be thoroughly reviewed by all the applicable agencies during the review process. 2.Requirements a.In the Rural Agriculture (RA) Zoning District, the Light Industrial (L-IN), and the Heavy Industrial (H-IN) Zoning Districts the following additional requirement standards shall apply. ...d.Ground mounted equipment must be setback 30 feet from all public and private streets rights-of-way, 15 feet from side lot lines and 25 feet from rear property lines. Security fencing, poles, and wires necessary to connect to facilities of the electric utility are not subject to these setbacks. e.Ground-mounted equipment must be set back 100 feet from any residential dwelling unit in existence at the time the application was submitted. f.The height of the system as measured from the highest natural grade below each solar panel may not exceed 20 feet. Any utility poles or antennas constructed for the project are excluded from this limitation.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 10).

Full Breakdown

13(K) of the Onslow County Code of Ordinances governs Ground Mounted Solar Electricity Systems, allowed as a permitted use in the Rural Agricultural (RA), Light Industrial (L-IN), and Heavy Industrial (H-IN) zoning districts. Ground-mounted equipment must be set back 30 feet from public and private street rights-of-way, 15 feet from side lot lines, 25 feet from rear property lines, and 100 feet from any residential dwelling unit that existed when the application was submitted; security fencing, poles, and utility connection wires are exempt from those setbacks.

The system's height, measured from the highest natural grade below each panel, cannot exceed 20 feet, excluding any utility poles or antennas built for the project. Before the technical review committee meeting on the project, the applicant must mail written notice of the system's location, technology, land coverage, and a glint and glare study to the Albert J. Ellis Airport director, any other nearby airport or airstrip within five nautical miles, and the commanding officers of Marine Corps Base Camp Lejeune and Marine Corps Air Station New River, at least 30 days before that meeting.

A decommissioning plan signed by the responsible party and the landowner must define when decommissioning is triggered, require removal of all non-utility equipment and foundations, restore the property to pre-development conditions, and finish within 18 months, with the plan recorded at the Register of Deeds before final electrical inspection. The site also needs a Type C buffer along its perimeter, shielded and downcast lighting, a voltage warning sign at the main gate, and an internal access road meeting Fire Apparatus Access Road standards. 6(B)(1)(c), so a rooftop installation is not measured against the standard height cap the way a ground-mounted system's own 20-foot limit applies.

Violations & Fines

Failing to complete decommissioning under the recorded plan, or building past the 20-foot height or required setbacks, is a violation of the Zoning Ordinance under Section 9.13(K)(2)(m), enforced through Article 5. The Zoning Administrator can issue a notice of violation, and unresolved cases can draw a Civil Penalty Citation payable within 30 days, a cumulative daily penalty, or criminal prosecution under G.S. 14-4 (§ 5.8).

Frequently Asked Questions

What zoning districts allow ground-mounted solar systems in Onslow County?
Rural Agricultural (RA), Light Industrial (L-IN), and Heavy Industrial (H-IN). Section 9.13(K) lists Ground Mounted Solar Electricity Systems as a permitted use in those three districts, subject to setback, height, notice, and decommissioning requirements.
How tall can a ground-mounted solar array be?
No taller than 20 feet, measured from the highest natural grade below each panel, excluding any utility poles or antennas built for the project. The system also has to sit back 30 feet from street rights-of-way and 100 feet from any dwelling that existed when the application was filed.
Does Camp Lejeune get notified about solar projects near it?
Yes. Applicants must mail proof of notice, including the system's location, technology, land coverage, and a glint and glare study, to the commanding officers of Marine Corps Base Camp Lejeune and Marine Corps Air Station New River, and to nearby airport directors, at least 30 days before the technical review committee meeting.
What happens to a solar farm when it stops operating?
The owner must follow a decommissioning plan recorded with the Onslow County Register of Deeds. That plan has to remove all non-utility equipment and foundations, restore the property to pre-development conditions, and be completed within 18 months of the trigger event defined in the plan.

Sources & Official References

Other rules in Onslow County

All Onslow County rules

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