Zapotec partnered with Tappe Architects to created construction drawings for the 86 kW DC roof mounted PV system to be located on Zelma Lacey House in Charlestown, MA. Zapotec began by creating drawings to submit to Eversource for the interconnection application for the project, then continued by creating construction drawings that were bid out to various installers. The project design consisted of 213 REC Solar modules, SolarEdge inverters, and SolarEdge optimizers. Zapotec worked with Unirac to create a uniquely engineered racking design for the roof mounted system.