Rhode Island Adopts 2024 IECC — First Electric-Ready Building Code in the Region

For builders, electricians, and technically-minded homebuyers, here is exactly what the 2024 IECC electric-ready provisions require in a new home:

Electrical Panel Capacity

An electric-ready home must have sufficient electrical panel capacity to support all required circuits simultaneously. While the 2024 IECC does not mandate a specific panel amperage, the required circuits effectively necessitate a minimum 200A main panel. Many builders in Rhode Island are now installing 200A panels with 400A bus ratings or dual 200A panels to future-proof for full electrification.

The math is straightforward: a heat pump HVAC system (40A), heat pump water heater (30A), induction range (50A), heat pump dryer (30A), and EV charger (50A) total 200A of potential load. With load management and the reality that not all circuits draw peak simultaneously, a 200A panel with proper load calculation works, but leaves little room for growth. Forward-thinking builders should consider 320A or 400A service.

Circuit Specifications

Each required circuit must include:

Commercial Building Requirements

For commercial buildings, the 2024 IECC takes a different approach. Rather than prescribing specific circuits, it requires:

• HVAC infrastructure: Conduit pathways, electrical capacity, and equipment pad locations sized for commercial heat pump systems — even if gas heating is initially installed.
• Commercial kitchen infrastructure: Electrical capacity for commercial induction equipment alongside any gas infrastructure.
• EV charging: A minimum of 20% of parking spaces must be EV-ready (conduit and panel capacity), with 5% having EVSE installed at occupancy.
• Electrical room sizing: Electrical rooms must be sized to accommodate the larger panels and switchgear needed for all-electric operation.

For New Home Buyers

If you are buying a new-construction home in Rhode Island after August 2025, your home will arrive electric-ready out of the box. This has several immediate benefits:

For Renovators

If you are renovating an existing Rhode Island home, the 2024 IECC does not mandate electric-ready circuits for renovation projects (unless the scope triggers full code compliance). However, this is a once-in-a-decade opportunity to future-proof your home:

• If walls are being opened for any reason — bathroom remodel, kitchen renovation, addition — ask your electrician to run the circuits for heat pump HVAC, HPWH, induction, and EV charging at the same time. The incremental cost is $200-$500 per circuit.
• If you are upgrading your electrical panel (100A to 200A), add the dedicated circuits at the same time. The panel upgrade itself may cost $2,000-$4,000, but adding circuits during the upgrade adds minimal cost.
• If you are adding solar panels, consider the full electrification picture. A 200A panel, heat pump circuits, and EV charging circuit installed alongside solar maximizes your system's value and eliminates future project disruptions.