Collin County · NEC 2020 · Oncor · City of McKinney Development Services
McKinney Solar
Permit Design.
Collin County’s Fastest-Growing City.
New Construction Needs Different Plans.
McKinney solar permit drawings for City of McKinney and all Collin County AHJs. McKinney is one of the fastest-growing cities in Texas — new construction solar dominates the market and has different plan set requirements than retrofit installations. Oncor ERCOT territory. Customers need a solar buyback REP before the system goes live. Free for first-time clients.
Collin County City of McKinney Development Services
·Oncor ERCOT deregulated territory
·NEC 2020 NCTCOG regional standard
·Free AHJ revisions
Top 10One of the fastest-growing US cities — new construction is the dominant solar market
OncorERCOT deregulated · 4–6 week interconnection
ERCOT REPTXU / Chariot / Green Mountain solar buyback
24–48 hrStandard residential plan set delivery
2026 CodesElectrical: NEC 2020 (NCTCOG)Structural: IBC 2021 / IRC 2021Permits: Building + electrical · City of McKinney Development ServicesUtility: Oncor · ERCOT deregulated · REP solar buybackLast verified July 2026
McKinney’s Solar Market Reality
Rapid Growth Means New Construction Solar Is the Dominant McKinney Market. New Builds Have Different Electrical Panels, Fresh Roof Warranties, and HOA Approval Requirements.
McKinney has been one of the fastest-growing cities in the US for more than a decade. The result: a residential solar market dominated by relatively new homes — larger panels, modern 200A+ electrical systems, and fresh roof warranties that installers need to address upfront. New construction subdivisions often have HOA solar approval requirements and deed restrictions that affect system placement and aesthetics. Plan sets for McKinney new-construction solar have different documentation needs than retrofit installs in established suburbs.
City of McKinney Development Services — Building + Electrical Permit
✅City of McKinney Development Services — online permitting portal
✅Building + electrical permit required for residential solar
✅Typical fee: $300–600 · 2–4 week plan check
✅NEC 2020 under NCTCOG regional standard
⚠️New construction HOA approvals often required before permit submission
Oncor + ERCOT REP — Solar Buyback Required Before Go-Live
✅Oncor handles all McKinney solar interconnection — 4–6 weeks
⚠️ERCOT deregulated — customer must choose solar buyback REP
⚠️Without REP enrolled before go-live, all exports earn $0
✅TXU Solar Buyback: retail-match credits in Oncor territory
✅Compare all plans at PowerToChoose.org before install contract
⚠️ New construction McKinney solar: verify HOA solar approval and roof warranty terms before pulling permits. Many Collin County new-build subdivisions have HOA rules requiring written approval before solar installation. Roof warranty conflicts on homes under 5 years old are a frequent McKinney installer issue. Both should be cleared before the plan set is finalized.
Why McKinney Installers Outsource
New Construction Documentation. HOA Approval Timing. Collin County Permit Requirements.
New Construction Solar Has Different Plan Set Documentation Than Retrofit Installs
McKinney’s growth market means many jobs are on homes under 10 years old with modern panels and 200A+ electrical systems. New construction plan sets must document existing load calculations, panel capacity, and roof attachment for newer construction methods — OSB decking, synthetic underlayment, new ridge vent configurations. A plan set formatted for a 30-year-old retrofit doesn’t match the conditions of a 5-year-old McKinney build.
HOA Solar Approval Is a Real McKinney Delay — and It Happens Before the Permit
Many McKinney subdivisions require written HOA approval before solar installation. HOA approval timelines vary from 2 weeks to 2 months depending on the HOA’s meeting schedule. Pulling a McKinney permit before HOA approval creates a conflict — the permit may be valid but the HOA can still block installation. Build HOA approval into the McKinney project timeline before submitting to Development Services.
ERCOT REP Selection Is Often Skipped on New-to-DFW Installers’ McKinney Projects
Installers new to Collin County sometimes come from markets with traditional net metering and don’t know that McKinney customers need a solar buyback REP enrolled before the system goes live. In ERCOT, Oncor distributes power but doesn’t credit solar exports. A McKinney customer without a solar buyback REP exports at $0/kWh. We include the REP selection note in every McKinney deliverable.
McKinney Solar Permit Services
Oncor Interconnection. NEC 2020. Building + Electrical. All McKinney AHJs.
McKinney Residential Solar Permit Design
NEC 2020, IBC/IRC 2021. City of McKinney Development Services formatted — building + electrical permit. New construction documentation where applicable. Oncor interconnection package. Battery (Article 706) where included. ERCOT REP note.
Residential Solar Permit Design Services →McKinney Commercial Solar Permit Design
Commercial rooftop and ground-mount permit drawings for Collin County. IBC 2021, NEC 2020. Oncor commercial interconnection. McKinney’s rapid commercial and mixed-use development creates growing commercial solar demand alongside the residential market. PE stamp for commercial projects.
Commercial Solar Permit Design Services →McKinney Battery Permit Plans
Solar-paired and standalone battery permit drawings. NEC 2020 Article 706, Oncor storage interconnection. For new-construction McKinney homes with whole-home generators already installed, battery integration documentation is part of the package. ERCOT grid events drive grid resilience demand.
Battery Storage Permit Design Services →McKinney EV Charger Permit Design
EV charger permit drawings for Collin County residential and commercial. NEC 2020 Article 625. McKinney’s newer housing stock typically has 200A+ panels with panel space for Level 2 EV charger circuits. Newer builds often combine solar + battery + EV in a single project.
EV Charger Permit Design Services →McKinney Solar Market — 2026
Four Things That Define Solar in McKinney.
Fastest
One of the Fastest-Growing US Cities — New Construction Dominates the Solar Market
McKinney’s population has grown dramatically over the past decade and continues growing. The result is a solar market where new-build homes under 10 years old are the dominant installation type. New construction means modern electrical panels, newer roofing systems, and often HOA-governed communities. The plan set needs to match the actual construction conditions — not a generic retrofit template.
Collin Co.
Collin County — Oncor Territory, NEC 2020, Growing Permit Volume
All McKinney addresses are in Collin County, Oncor territory, ERCOT deregulated market. City of McKinney Development Services handles permits with a 2 to 4 week residential plan check. NEC 2020 under NCTCOG. As McKinney’s population grows, permit volume has increased and City Development Services is well-practiced with residential solar applications.
ERCOT REP
TXU Solar Buyback — Best McKinney Option for Retail-Match Credits
TXU Solar Buyback 12/24 offers retail-match export credits in Oncor territory — the strongest net-metering equivalent available in Collin County. Chariot Energy is top-rated overall. Green Mountain Solar Credit 12 offers non-expiring credits. Every McKinney customer needs a solar buyback REP enrolled before go-live — without one, exports earn $0.
New Builds
Modern Electrical Systems + New Roofs = Cleaner Solar Installs
McKinney’s newer housing stock generally has 200A+ main panels with available circuits, modern composition shingles on newer roof decks, and clean attic access for conduit runs. Solar on a 5-year-old McKinney build is technically simpler than many retrofit installs — but the HOA process and roof warranty documentation add steps that need to be coordinated before permit submission.
AHJ Solar Permit Design McKinney
McKinney and All Surrounding DFW AHJs — Oncor Interconnection Confirmed.
We cover City of McKinney, Collin County, and all surrounding DFW cities. AHJ confirmed per address.
| Jurisdiction | Utility | Permit Type | Key Notes | Review Time |
|---|---|---|---|---|
| City of McKinney | Oncor | Bldg + Elec | McKinney Development Services · $300–600 fee · 2–4 week plan check | 2–4 weeks |
| Frisco (adjacent) | Oncor | Bldg + Elec | City of Frisco Development Services · Fastest permit timelines in DFW | 1–2 weeks |
| Allen | Oncor | Bldg + Elec | City of Allen · Collin County · Established mid-size suburb | 2–3 weeks |
| Prosper / Celina | Oncor | Bldg + Elec | Northern Collin County growth corridor · Own building departments | 2–3 weeks |
| Anna / Melissa | Oncor | Bldg + Elec | Far north Collin County · Fast-growing outer suburbs | 2–4 weeks |
| Fairview / Lucas | Oncor | Bldg + Elec | Collin County suburbs · Estate-lot market · Strong solar potential | 2–3 weeks |
| Plano (adjacent) | Oncor | Bldg + Elec | City of Plano Building Inspections · Established DFW suburb | 2–3 weeks |
References: McKinney Development Services · Oncor Solar Interconnection · PowerToChoose.org
What You Get
Solar Permit Package McKinney — McKinney Solar Permit Plan Sets. Oncor Ready. Building + Electrical.
01
Cover Sheet — McKinney PV Permit Plans
NEC 2020 · IBC/IRC 2021 · McKinney AHJ · Oncor utility · Building + electrical permit format
02
Site Plan
Meter and Oncor interconnection access · ASCE 7 North Texas wind values · Hail zone notation
03
Roof Layout
Array diagram · Pitch, azimuth, setbacks · North Texas rooftops · IFC 2021 §1205 fire access
04
Single-Line Diagram
NEC 2020 §690.12 rapid shutdown · Battery (Article 706) where included · Oncor bidirectional meter · ERCOT REP note
05
Structural Calculations
IBC/IRC 2021 · ASCE 7 North Texas wind loads · Gravity and lateral loads · PE stamp for commercial
06
Rapid Shutdown + Labels
NEC 2020 §690.12 · Battery shutdown interface (Article 706)
07
Equipment Datasheets + Oncor Interconnection Package
UL-listed module, inverter, racking, and battery datasheets · Oncor solar interconnection application · ERCOT REP solar buyback note · Texas property tax and sales tax exemption notes
McKinney Plan Set — 24 Hours.
Building + Electrical · Oncor Interconnection · NEC 2020 · All McKinney AHJs
How It Works
Three Steps. 24 Hours. McKinney AHJ Ready.
📋
Submit the Project
Share address, specs, and system design. We confirm the AHJ, Oncor interconnection, and NEC 2020 format for McKinney.
5 minutes⚡
We Build the Plan Set
NEC 2020, IBC/IRC 2021. Building + electrical permit drawings for McKinney. Oncor interconnection package. Battery (Article 706) where included.
24–48 hours✅
Submit Permits + Interconnection
Submit building permit, electrical permit, and Oncor interconnection simultaneously. Free revisions for any AHJ correction on our design.
Free revisions🛡️
The Permit Design Commitment
Solar permit services in McKinney — what every installer and EPC gets on every project.
✓AHJ confirmed per address before we build
✓Building + electrical permit drawings — not electrical-only format
✓24–48 hour delivery on standard residential solar projects
✓NEC 2020 formatted for Texas — not California NEC 2026
✓Free revisions for any AHJ correction related to our design
Start Free Trial →
First plan set free.
Licensed installers & EPCs only.
Licensed installers & EPCs only.
FAQ
Questions McKinney Installers Ask Us
Yes — McKinney requires both a building permit and an electrical permit. Plan sets must include structural drawings and a single-line diagram. City of McKinney Development Services handles both. Submit Oncor interconnection on the same day.
New-build homes require documentation of existing electrical panel capacity, load calculations for the new solar system, and roof attachment notes specific to newer construction methods. HOA approval is often required before permit submission in McKinney’s subdivision-heavy market. Roof warranty terms on homes under 5 years may also need installer verification before the plan set is finalized.
McKinney is in Oncor Electric Delivery territory — ERCOT deregulated. Oncor handles interconnection. Customers must choose a solar buyback REP before the system goes live. Without one, exports earn $0. TXU Solar Buyback, Chariot Energy, and Green Mountain Solar Credit 12 are the leading plans in 2026.
McKinney uses NEC 2020 under the NCTCOG regional standard for DFW. NEC 2026 adoption is being prepared — verify with McKinney Development Services for projects after Q3 2026.
No PE stamp required for standard residential rooftop solar. Commercial projects require PE-stamped structural drawings.
All of them — McKinney, Frisco, Allen, Prosper, Celina, Anna, Melissa, Fairview, Lucas, and all Collin County and DFW metro cities. AHJ confirmed per address.
Most McKinney residential plan sets ship in 24 to 48 hours. Battery same day. Commercial: 3 to 5 business days. Rush available.
⚡
Reviewed by the Permit Design Engineering Team — Licensed PE
City of McKinney Development Services AHJ confirmed. Oncor territory confirmed. NEC 2020 NCTCOG standard confirmed. Building + electrical permit requirement confirmed. TXU Solar Buyback confirmed from PowerToChoose.org (July 2026). Texas SB 1036/1697 TDLR confirmed. Last reviewed July 2026.