Off-Grid Solar & Battery System Design
An off-grid power system must coordinate generation, storage, conversion equipment, backup sources, distribution, and the loads the system is expected to serve. Gemini Solar Design develops project-specific drawings for stand-alone solar and battery systems, including complex hybrid-inverter and generator configurations.
The service is design and documentation—not equipment sales or installation. You work directly with an experienced PV designer who can review the proposed architecture and translate it into a coordinated drawing package.
Off-grid and stand-alone project types
- Remote homes and owner-builder projects
- Solar, battery, and standby-generator systems
- Multiple hybrid inverters or battery banks
- Ground-mounted and roof-mounted arrays
- Systems with separate backed-up structures or distribution panels
- Grid-optional systems with stand-alone operating capability
- Existing systems being expanded, corrected, or redesigned
- Victron, EG4, Sol-Ark, and other hybrid architectures
More than a solar array layout
Off-grid design starts with the intended power architecture. The drawings may need to coordinate PV source circuits, charge or hybrid-inverter equipment, batteries, generator input, bypass or transfer equipment, distribution panels, disconnects, overcurrent protection, grounding, rapid-shutdown components, conductor and conduit information, equipment locations, labels, schedules, and specification sheets.
The applicable scope varies by equipment and jurisdiction. Energy-use estimates, equipment sizing, and operating assumptions must be distinguished from the permit drawings and documented appropriately when included.
Information that makes the design useful
Provide the project location, intended equipment, array size and mounting method, battery models and quantities, inverter or charge-controller models, generator information, distribution-panel details, anticipated loads, site photos, sketches, and any existing electrical drawings.
If the architecture is still being developed, explain what must remain powered, whether a generator will be used, and what equipment you are considering. Gemini can identify missing decisions and clarify the documentation required before design begins. Final equipment selection and system capability must be based on the actual project requirements and manufacturer documentation.
Direct coordination for complicated systems
Unusual systems generate questions that are difficult to resolve through a generic intake queue. Gemini provides direct communication with the designer preparing the drawings, which makes it easier to identify conflicts among the equipment, desired operation, site conditions, and available information.
Revisions, AHJ comments, and PE coordination
Off-grid projects may still require jurisdictional review, equipment corrections, or professional engineering depending on the location and scope. Gemini can address design revisions and coordinate electrical or structural PE review, calculations, and stamps through appropriately registered engineers when required.
Start with the architecture you have
You do not need a perfect package before making contact. Send the current equipment list, goals, and available site information. Gemini will review what is present and explain what is needed next.