Rendimiento Solar Auditoría
Pronostique la producción energética de su matriz fotovoltaica. Análisis realista que tiene en cuenta las pérdidas del sistema y la densidad solar geográfica.
Datos del Sistema
Tamaño de la Matriz y Horas de Sol
75% - 80% es típico para sistemas conectados a la red.
El resultado se actualiza en tiempo real a medida que ingresa los parámetros.
La Fórmula de Producción
El rendimiento de energía solar depende de la capacidad nominal de su matriz y de cuántas horas de sol productivas recibe su ubicación.
Rendimiento Energético Diario
kWh/day = kWp × Sun Hours × Eff kWp es la potencia máxima de su matriz en kilovatios. La eficiencia (típicamente 0.75–0.85) tiene en cuenta las pérdidas del inversor, del cableado y de temperatura.
Rendimiento Anual
Annual kWh = Daily kWh × 365 Use el rendimiento anual para calcular la compensación de CO₂, el ahorro frente al costo de la electricidad de la red, y el período de recuperación de su inversión solar.
How to Estimate Solar Panel Output
Knowing how much energy your solar system will actually produce is the foundation of any solar investment decision. The theoretical output of your panels (kWp) is always higher than real-world production — temperature, shading, inverter losses, and dust all reduce actual yield. This calculator applies a realistic efficiency factor to give you an honest production estimate.
Performance Ratio: The Key Metric
Performance Ratio (PR) is the ratio of actual energy output to theoretically possible output — the single best measure of a solar system's real-world efficiency. A well-installed system typically achieves a PR of 0.75–0.85. Losses come from inverter conversion (3–5%), cable resistance (1–2%), soiling (2–5%), temperature derating (5–10%), and shading (variable).
Factors That Affect Solar Output
- Peak Sun Hours: The most location-dependent variable. Phoenix, AZ sees ~6.5 peak sun hours; Seattle, WA averages ~3.5. Use your local solar irradiance data for accuracy.
- Panel Temperature: Solar panels lose approximately 0.4% of output per degree Celsius above 25°C (STC). A panel at 65°C on a hot day produces ~16% less than its rating.
- Shading: Even partial shade on one panel can significantly reduce the output of the entire string in traditional string inverter systems. Microinverters or DC optimizers mitigate this.
- Panel Orientation and Tilt: In the northern hemisphere, south-facing panels at a tilt angle equal to your latitude angle produce the maximum annual yield.
- Panel Degradation: Panels lose approximately 0.5–0.7% of output per year. A 25-year-old panel typically produces 80–85% of its original rating.
Calculating Solar Payback Period
Divide the total installation cost by the annual electricity savings (Annual kWh × electricity rate). A 5kWp system at $10,000 producing 6,500 kWh/year at $0.15/kWh saves $975/year — a simple payback of about 10.3 years, with 15+ years of free energy afterward.