The house at 13 Elmwood St., outside Davis Square, may look like many other newly rennovated residential projects in Somerville. A look at the massive solar panels on the roof tells you something else is going on.

This home is Somerville's first "Net-Zero" house, according to an announcement from the city. Net-Zero means the house produces as much energy as it consumes, the announcement says.

In addition to giant solar panels, the two-family home is built with green construction materials and techniques to minimize its carbon footprint, according to the announcement.

The renovated home is owned by Chungha Cha of Susterra Partners in Korea, and it was designed by Amacher & Associates, an architecture firm.