Products
Pick the product you build or install. Each page lists the codes that reach it, the state laws that name it, and the changes ahead, so one visit answers the three questions a product team asks before a launch in a new state.
Residential energy storage systems
Wall or floor units at a one- or two-family home, usually 5 to 40 kWh.
Commercial and utility energy storage systems
Cabinets and containers at a business, a campus, or a substation.
Solar PV
Rooftop and ground-mounted photovoltaic arrays and their wiring.
Inverters and power control
The inverter, the power control system, and the interconnection to the grid.
Interconnection devices
Backup switches, gateways, meter adapters, and the device that islands a home.
Plug-in solar
A small array with its own inverter that plugs into an ordinary outlet.
EV charging
Chargers at homes, in parking structures, and at public sites.
Which code reaches which product
A dot means the code has a part that governs the product. Point at a dot for the part. The product page names the editions in force.
| Product | NEC | NFPA 855 | IBC | IRC | IFC | IECC Res. | IECC Com. |
|---|---|---|---|---|---|---|---|
| Residential energy storage systems | – | – | – | ||||
| Commercial and utility energy storage systems | – | – | – | ||||
| Solar PV | – | – | – | ||||
| Inverters and power control | – | – | – | – | – | ||
| Interconnection devices | – | – | – | – | – | ||
| Plug-in solar | – | – | – | – | – | ||
| EV charging | – | – | – |
For information only. Your local building or fire official decides which code applies. We check state records often but can miss a recent change, so confirm with your official before you design, permit, or install. Terms of use