SPYCE (Satellite Photovoltaic Yield Control & Evaluation) is perhaps the most advanced monitoring and forecasting system available for PV installations. SPYCE is an ideal solution for monitoring commercial PV systems. For building owners it assists to ensure your solar investment is providing maximum returns. For systems providers it helps to ensure that system availability obligations and performance guarantees can be met.

SPYCE combines satellite and local meteorological data to actively assess system performance and provide timely alarms and fault diagnostics. SPYCE calculates the expected yield based on weather data and compares that to the actual yield reported by the system. This takes the guess work out of system monitoring providing confidence that your system is operating as it should. If the actual output is less than expected, SPYCE provides e-mail or SMS alerts and a diagnosis of the likely cause.

The SPYCE System monitoring includes:

• Monitoring: Solar radiation is determined from site or satellite data and is used to calculate the PV system’s reference yield.
• Logging: Actual yields are recorded hourly and sent to the main SPYCE server.
• Assessment: Overnight, actual yields are compared with expected yields.
• Alarm: If the PV system is underperforming, an alert is sent via e-mail or SMS.
• Internet platform: The recorded yields, reference values and analyses of the PV system are accessible via the SPYCE website.