Installation Guidance Explained
The Installation Guidance tab adds a planning layer to the result. It uses the installation inputs from the scenario to produce indicative cabling, interconnect, protection, and routing guidance around the system that has already been sized.
What this tab is for
This tab exists to make the result feel more physically grounded. A battery bank, inverter, and solar array may look workable in pure sizing terms, but the system still has to be connected, routed, and protected in a practical way.
At the top of the tab, the app makes the boundary clear with an Indicative only note. That wording matters. This section is for planning and early review. It is not final electrical design, final code interpretation, or installation sign-off.
Headline metrics
The first metric cards give a compact picture of the installation burden. These include Battery-side current, PV-side current, AC output current, Battery cable total, PV cable total, AC cable total, Cable slack, Protection safety margin, and AC voltage source.
Think of these as orientation values. They help you see whether the system is trending toward modest or demanding installation conditions before you dig into the detailed cards below.
Connection summaries and planning notes
Below the headline metrics, the tab shows a set of summary and note cards. These can include Battery connection summary, Battery distribution recommendation, PV connection summary, PV combining recommendation, Installation warnings, Fallback notes, and Edge-case notes.
These cards are useful because they explain the planning logic around the detailed metrics. They can highlight where the app is assuming busbar-style distribution, where combining begins to make sense on the PV side, or where the installation view contains caveats that should affect your confidence in the output.
Detailed installation cards
The detailed cards break the installation layer into practical sections: Battery cabling, Battery interconnects, Battery protection, PV cabling, PV interconnects, PV protection & combiner, and AC output.
These cards show route assumptions, main and feeder runs, cable counts, material, cable type, environment, voltage-drop targets, indicative current requirements, interconnect counts, string layout, protection-device suggestions, device counts, and suggested locations.
The value of this section is not that it gives you a final shopping list. The value is that it helps you spot practical pressure points early. A result that looks tidy on the Battery and Solar tabs may look more demanding once current, cable totals, or protection arrangements are considered.
What this tab does not do
This tab does not turn GridGap into a code-compliant cable-sizing engine, a final breaker-selection tool, or a certified installation design system. It is not a replacement for final professional checks.
Use it to understand installation implications earlier and more clearly, not to bypass detailed engineering review.