Electrician Harry Cunningham and Kim Hansen of Square D / Schneider Electric join Bob to explain the electrical box that supports the household power and backup generator. Two power sources feed into the service box -- the utility and the generator. There is a safety check in place to prevent the generator from automatically taking over the power load or feeding out into the street to power the neighborhood. The switch in the box must be flipped to protect power from surging through the outlets when work is being performed or the environment is unsafe. The generator allows for flexible power and the opportunity to switch between circuits. The homeowners can decide to power up an air conditioner during a storm, switch circuits to do laundry, or power up the TV and family computer. In an emergency, the system allows homeowners to tailor their energy use to suit the needs of their home and family.

The demolition crew has removed all the old cabinets, fixtures, and electrical boxes in the kitchen before knocking down the divider wall to make room for a kitchen/dining peninsula. Bob watches as the crew uses sledge hammers to take out the old drywall and metal studs. In just a few hours the apartment goes from close and dark to open and airy. Bob watches as the crew sledge hammers out the old drywall and metal studs. In just a few hours the apartment went from closed in and dark to open and airy.

In this segment Bob meets Eddie Fisher, the master electrician on the Brooklyn project's infrastructure team. The team of five electricians from AC/DC Electric is rewiring the building from basement to roof deck. Fisher's team is pre-wiring the building for telephones, computer and cable TV. New York City building codes often require the use of materials and techniques not often seen in residential construction. Codes enacted in the summer of 2003 in New York City require a separate power line from the main electrical box to each GFI (Ground Fault Interrupt) circuit. Also required by code in this building is the use of BX, or metal-shielded, cable. BX is a rigid, flexible metal conduit with a wire bundle, consisting of individually insulated conductors covered by a flexible spiral-wound layer of metal. BX will typically last longer than vinyl-clad cable and may prevent some inadvertent damage in the future.