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Off-grid industrial sites with PV
Anticipating solar power drops to maintain stable off-grid production
OFF-GRID INDUSTRIES + PHOTOVOLTAICS
Manage photovoltaic integration for off-grid, hybrid systems with or without storage
Hybridization involves integrating solar energy generated locally by a photovoltaic power plant into an autonomous power grid. This configuration, common in isolated industries such as mining sites, involves major technical challenges to guarantee a stable, continuous power supply.
Reliable forecasts needed for energy stability
Hybrid systems, combining several energy sources, require precise anticipation of weather-related fluctuations in solar energy production. Very short-term (nowcast) and medium-term (intraday) solar forecasts are essential to maintain performance and avoid production interruptions.
CLOUD DETECTION-BASED NOWCAST
The direct impact of clouds on solar energy production
Clouds reduce the amount of energy reaching solar panels, having a major impact on production. A sky observation camera tracks their movement and effect on irradiance in real time.
Anticipating the activation of back-up power sources
In an industrial context, anticipating production shortfalls using nowcast tools enables generators or batteries to be activated at the right time. This avoids blackouts, while optimizing the sizing of storage infrastructures.
Cost reduction through better forecasting
By reducing dependence on oversized storage capacity, the use of real-time solar forecasting improves the profitability of photovoltaic installations. The Instant service, developed by Calibsun, is based on a network of fisheye cameras combined with image processing algorithms and a high-performance cloud infrastructure. It provides a very short-term solar forecast (nowcast) tailored to industrial needs.