As the new building code comes into effect January 1, 2020, solar PV systems are becoming a new normal for residential and nonresidential buildings, with batteries not far behind. It will fall on architects, contractors, developers, and other specialists involved in the process of designing and building buildings to make this transition effective and efficient.
Part of understanding solar PV systems is knowing the variety of backend components – from electrical panels and batteries to inverters and disconnects – that might be involved in an installation. Each has requirements for placement, spacing and connection that are important to plan for.
The image above shows the rough dimensions for a PV and battery system for a residential project. The dimensions indicated provide a starting point for how much space is required for a system. A system such as this can be installed inside or outside as long as it is not in direct sunlight.
It is important to note that the system doesn’t always have to be as cookie cutter or perfectly laid out. The overall system can be configured to suit available space if a few general guidelines are kept in mind:
· Provide the Main Service Panel a minimum of 36” clearance (18” on each side from the center)
· Provide the battery a minimum of 4 feet of dedicated work area (2 feet on each side from the center)
· If the Main Service Panel and Inverter for the PV panels are not within line of sight OR are over 50 feet apart, a device called the AC Disconnect is required.
This diagram represents an ideal layout because all the components are close to each other limiting the amount of conduit and length of wires, which will help reduce voltage drop.
Interested in installing solar and not sure where to start, contact us!