The 31 Solaria Power XT 360 watt panels complement this gray roof in Apex, N.C. The 11.16 kW of solar are paired with SolarEdge inverter and optimizer and monitoring and will offset 14, 035 kWh of energy. The customer also uses his two Tesla Powerwalls to maximum use. Yes Solar Solutions was the first Tesla Powerwall certified installer in North Carolina (and the only solar installer in North Carolina accredited by NABCEP). Compare the before roof with our design with the finished project.