FS-7525A-TR1

First Solar guarantees a degradation rate of 0.3%/year, translating to 92% retained power output after 30 years. Leading c-Si modules (including peer comparables) exhibit degradation of 0.45–0.55%/year, retaining 80–85% of rated power over the same period — a First Solar advantage of a real-world 2–3% additional energy yield over the full system lifetime.

The Pmax temperature coefficient is -0.32%/°C, while typical c-Si modules in the 550 Wp class achieve -0.35% to -0.45%/°C. In practice, at a cell temperature of 70°C (a typical summer day in Poland), the Series 7 TR1 loses approximately 14.4% of output vs. 15.75–20.25% for c-Si — a tangible yield improvement during warm-weather months.

CdTe manufacturing in Ohio fully eliminates supply chain scrutiny risk under the UFLPA (which restricts imports of polysilicon sourced from Xinjiang). For U.S. projects, the modules qualify for the IRA domestic content adder (+10% investment tax credit value) — a benefit unavailable to virtually all Chinese c-Si manufacturers.

The innovative rear-rail system (TrackerReady) has been integrated by tracker providers including Terrasmart across their ground-mount portfolio (confirmed January 2025). It accelerates installation on fixed-tilt structures and single-axis trackers, reducing BoS costs and compressing project schedules for utility-scale PV plants.

The datasheet confirms certifications to IEC 61701 (salt mist corrosion), IEC 62716 (ammonia resistance), IEC 60068-2-68 (sand and dust), and PID resistance. This testing scope exceeds the minimum requirements of IEC 61215:2021 and is particularly relevant for PV farms in coastal, agricultural, and desert environments.

The maximum efficiency of the Series 7 TR1 is 19.7%, while comparable 550 Wp c-Si modules achieve 21.3% (Goldi Solar GS10-B144-TF, IBC Solar 182M, S-Energy SL65-72BGJ). The 1.6 percentage-point gap means approximately 8% more modules (or array area) are required for the same installed capacity — a meaningful constraint where land is limited or land costs are high.

The Series 7 TR1 is a monofacial module (is_bifacial: false), whereas all three peer comparables are bifacial designs that capture additional yield from ground-reflected irradiance (typically 5–15% for ground-mount systems with a light-colored albedo surface). The absence of an active rear side is a technical disadvantage relative to the prevailing utility-market standard.