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Welcome to Solar Wiring Simulator
BETA DISCLAIMER: This simulator is a conceptual tool designed for planning and educational purposes. It has not been fully vetted for real-world edge cases, efficiency losses, or strict NEC safety codes. Always consult a certified electrician or solar professional before building a physical system!
Solar Wiring Simulator Guide
Canvas Controls
Add Components: Click an item in the library, then click anywhere on the canvas grid to place it.
Wiring: Click and drag from any colored terminal node to another to establish a connection.
Select & Move: Click any object to select it. Drag it to reposition. Shift+Click to multi-select several components.
Delete: Select an object or wire and press the Delete / Backspace key, or the "Delete Selected" button.
Pan Workspace: Click and drag on any empty background space to navigate around large drawings.
Copy / Paste: Select components and press Ctrl+C to copy, and Ctrl+V to paste them near your cursor.
Advanced Wire Routing
Shape Wires: Double-click anywhere on a drawn wire to add a routing node (white square). Drag the node to create custom, perfectly rounded 90-degree paths.
Move Segments: Click and drag the straight line segment between any two nodes to orthogonally shift the entire segment up/down or left/right.
Reconnect Wires: Click a wire to select it, then click and drag the starting or ending terminal node to instantly attach it to a different component.
Remove Nodes: Double-click on an existing routing node to delete it.
Move Labels: Drag the yellow cable specification labels to manually reposition them away from components.
Edit Labels: Double-click on any yellow text label to manually override its AWG and fuse recommendations.
The Logic "Brain"
The simulator automatically isolates circuits. Selecting a component will update the Diagnostics panel to show context-specific stats (e.g. PV input variables for a specific MPPT). Clicking empty space returns to Global stats.
Temperature Slider: Adjust the PV Temp slider to simulate the physics of cold weather over-volting your panels, or hot weather dropping your amperage. Standard panel ratings are calibrated at 25°C.
Wires automatically size themselves (calculating the AWG gauge) and recommend fuses based on continuous load math (Amps × 1.25 safety margin).