When considering a tracking PV system, what is the primary economic trade-off?

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Tracking PV systems add moving parts to follow the sun, which boosts energy production but brings higher costs. The main economic trade-off is paying more upfront for the tracking hardware and, because the system moves, higher ongoing maintenance costs, in exchange for a noticeably higher energy yield over the system’s life. This higher energy yield can improve overall return on investment, especially in locations with strong sunlight and over longer lifetimes. The other ideas—lower maintenance, lower initial capital cost, or lower energy yield—don’t fit because the tracking mechanism inherently adds both complexity and wear, driving up both upfront and maintenance costs while increasing energy output.