Pricing & Project Scope

Solar Design Pricing

Pricing is based on project scope and actual design time. Project requirements are reviewed before work begins.

RESIDENTIAL

Standard Residential PV

Permit-plan packages for straightforward roof-mount and ground-mount residential systems.

  • Site plan and array layout
  • Electrical single-line / three-line as required
  • Equipment and conductor schedules
  • Code notes and supporting documentation
STORAGE & BACKUP

PV + Battery / ESS

Systems involving energy storage, backup loads, PCS, hybrid inverters, generators, or more complex electrical architecture.

  • AC- or DC-coupled storage
  • Whole-home / partial-home backup
  • PCS and service coordination
  • Generator integration where applicable
SPECIALTY RESIDENTIAL

Off-Grid & Complex Systems

Stand-alone systems and projects that require more involved power-system design or unusual equipment combinations.

  • Battery-bank architecture
  • Hybrid inverter systems
  • Generator and load integration
  • Non-standard electrical configurations
CUSTOM SCOPE

Commercial PV

Commercial and larger electrical projects are priced according to system size, voltage, interconnection, and drawing complexity.

  • 480V systems
  • String inverters and combiners
  • Carports and large ground mounts
  • Feeder, voltage-drop and interconnection design
DESIGN RATE

$180 / Hour

All Gemini Solar Design work is billed at $180 per hour. Final cost is based on the design time required for the agreed project.

  • Applies across residential, ESS, off-grid, and commercial work
  • Project requirements are reviewed before design begins
  • Major added work or redesign is billed at the same hourly rate
PE

Electrical & Structural PE Stamps Available in All 50 States

Gemini Solar Design can coordinate licensed electrical and structural PE review, calculations, and stamps nationwide. Engineering and stamp fees are quoted separately.

Interconnection & Additional Services

Utility interconnection, revisions, standalone electrical work, and other targeted solar-design support are available without requiring a full new plan set.

Utility Interconnection

Applications, drawings, electrical details, and supporting documentation.

AHJ & Utility Revisions

Corrections, design updates, and resubmittal support.

Electrical Design Support

SLDs, calculations, conductor sizing, schedules, and equipment changes.

Miscellaneous Project Support

Standalone and unusual solar-design work outside a standard permit package.

Additional and standalone design services are generally billed at the published $180/hour design rate.

What Affects Project Cost?

Three things matter most.

Complexity Batteries, generators, PCS, service upgrades, multiple inverters, and unusual configurations.
Scale System size, structures, services, equipment, and overall drawing scope.
AHJ / Utility Permitting requirements, interconnection standards, calculations, and project-specific documentation.

Complete project information reduces back-and-forth and helps the design move faster.

See What Clients Say

Read real feedback from homeowners, contractors, engineers, and project partners.

READ CLIENT REVIEWS

Get a Project-Specific Quote

Send the basics if you want to discuss the project first, or use the full Design Request Form if you already have the site, service, equipment, and system information ready.

START A PROJECT FULL DESIGN REQUEST FORM VIEW SAMPLE PLAN SETS

Explore specialized services

Go directly to the design information that matches your project.

Residential Permit PlansRoof mounts, ground mounts, service changes, and owner-builder projects. Battery & ESS DesignStorage, whole-home backup, PCS, generators, and hybrid systems. Off-Grid Solar DesignStand-alone PV, battery banks, hybrid inverters, and generator integration. Commercial Solar Design208Y and 480V systems, carports, schedules, and interconnection details.