Des shoved the 20-inch pizza box of the three smiling Petrini brothers into Molly’s outstretched hands and blurted, “Lunar panels!” After a beat, she asked, “Looney panels? Have you been listening to one of those right-wing talk stations?” “No, no, no. LUNAR panels. Do you get it? Everyone is selling solar panels—along with garage doors—but nobody is se…