SOLAR PV

1 MW carport solar PV interconnection

This carport solar PV single line diagram shows a one-megawatt-scale commercial installation divided into four equal PV and inverter blocks. The blocks combine on a 480 V AC collection bus, pass through a main breaker, and step up through a 1 MVA transformer before connecting to a 12.47 kV utility feeder. This is a common layout where long carport rows make modular inverter blocks practical.

UPDATED 2026-09-23

TYPESld

USE-CASESolar Pv Sld

EXAMPLE1 MW carport solar PV interconnection

Make this diagram your own.

Open it in the AI editor with a prompt pre-filled — keep what works, change what doesn't.

CASE ANALYSIS

Scenario

A commercial campus is interconnecting a large parking-carport project directly to a medium-voltage utility feeder.

Key decisions

Four identical PV blocks isolate array and inverter maintenance areas.
The inverter outputs collect on one 480 V AC bus.
A 1600 A main breaker protects the low-voltage collection side.
A 1 MVA transformer raises voltage to the 12.47 kV intertie.
The recloser marks the controlled connection to the utility feeder.

When to reuse this

Use this topology for a distributed carport field with a dedicated medium-voltage interconnection. Protection studies and utility-owned equipment requirements will vary by service territory.

FAQ

Frequently asked questions

Why are there four inverters?01

Separate inverters align with four carport blocks and reduce the impact of a single equipment outage.

Why step up from 480 V?02

Medium voltage reduces current and conductor size for an interconnection at this power level.