Gilbert is one of the fastest-growing cities in the country, and its newer housing stock — with larger roof surfaces and modern electrical panels — makes it an ideal market for residential solar. Most of Gilbert is served by SRP (Salt River Project), with some northern neighborhoods falling under APS. SRP’s solar program differs from traditional net metering: instead of receiving retail credit for exported energy, SRP customers are placed on the Customer Generation price plan, which includes a demand charge based on peak usage. This means system sizing and time-of-use optimization matter more for Gilbert homeowners than in APS territory. A typical Gilbert home needs a 12–14 kW system costing approximately $27,000–$31,000 before incentives. After the 30% federal tax credit, net cost comes to around $19,000–$22,000. Gilbert receives 6.5+ peak sun hours daily. Every contractor on this page holds a current Arizona ROC license — you can click “Verify License” on any listing to confirm directly with the state.