ADU electrical requirements in San Diego catch more homeowners off guard than any other part of the backyard-unit process. The framing, the roofline, the finishes — those are the parts everyone plans for. What usually gets discovered late, sometimes after the walls are already up, is that the existing electrical panel cannot legally or safely support a new unit without changes that go well beyond running a few extra wires. San Diego has one of the highest concentrations of ADU permit activity in the state, and the electrical scope is where a large share of those projects stall in plan

Homeowners looking into a heat pump water heater in Irvine almost always start with the rebate numbers and end up, a few clicks later, staring at a question they didn’t expect: does my electrical panel even have room for this thing? It’s a reasonable question, since a heat pump water heater isn’t a drop-in replacement for a gas unit the way it might first appear. It’s an electric appliance with a real electrical draw, and that draw has to come from somewhere in a panel that’s often already carrying decades of accumulated appliances. The good news is that this question