Turn Site-Level Accuracy into Trading Margin
SkyEye delivers PV forecasting and nowcasting from a device installed at the plant, covering the horizon from the next five minutes to the next couple of days. Your desk trades on what the plant will generate, captures more of the spread, and reduces imbalance charges.
Every Horizon the Desk Trades On
A PV plant’s generation output is traded in steps: contracted by noon the day before delivery on the day-ahead market, corrected through the day on intraday, and whatever is left over or missing at delivery settles as imbalance. Each step needs a different prediction. Days out, a meteorological model could be enough. Satellite imagery only carries the next couple of hours. In the final hour neither model has the resolution to see a single cloud moving over one plant.
The gap between these steps can be wide. On the Czech spot market on July 27, 2026, for example, intraday sat 69 EUR/MWh above the day-ahead price between noon and 5:00 PM. Knowing an hour ahead what the plant will deliver is what makes that spread tradable.
SkyEye closes that gap from the plant itself – a camera watching the sky above the panels, learning from that plant’s own output.
What Is SkyEye?
SkyEye delivers hyper-local generation predictions for medium to large photovoltaic plants. An on-site camera tracks cloud movement while sensors measure irradiance, temperature, and wind speed, and the model learns the specific conditions of that plant – weather, terrain, and panel orientation.
SkyEye predicts the next hour directly from the sky above the plant. Further out, the same measurements correct the bias in satellite-based forecasts, so accuracy improves across every horizon.
How SkyEye Helps
Move Volume into Intraday
A reliable prediction for the next hour lets your desk shift volume out of the day-ahead auction and take the spread instead of hedging against it.
Lower Imbalance Costs
A cloud over one plant rarely becomes a deviation from your traded position.
Hold Position inside the Settlement Period
The nowcast drives semi-real-time control of the plant and of the battery or flexible consumption behind it, so you can close your position within the settlement period.
One Source Across Every Horizon
Day-ahead, intraday, and the final hour run on the same site-specific models, so each correction builds on the last instead of switching between sources.
Use More of Your Own Generation
Knowing the next hour’s output lets you steer the battery and flexible consumption against it, so you maximize the utilization of your plants and shorten their payback period.
Run the Battery against Real Output
Charge and discharge decisions rest on what the plant will actually produce.
Shorten the Sales Conversation
Open the conversation with a specific financial outcome for the customer’s site.
How SkyEye Works
On Site
A SkyEye box with a sky camera and weather sensors sits at the PV plant. A data collector reads actual output from the inverters or from your PLC, SCADA, or EMS.
Model per Plant
SkyEye trains a site-specific model on that plant’s own data. The model adapts to local weather, terrain, and panel orientation, and sharpens as more data arrives.
Horizons
Intraday Nowcast – 0–60 minutes ahead, in 5-minute steps, then until the end of the day in 15-min steps
Day-Ahead Forecast – from sunrise to sunset of the following day, in 15-minute steps, issued at 9:00 AM the day before
Short-Term Forecast – further days ahead, in 15-minute steps
Delivery
Predictions reach you in the Energy Intelligence Center and through an API that feeds your trading or control system directly. You can group plants into portfolios.
Every Prediction Logged
SkyEye logs every prediction it issues, so your desk keeps a full audit trail.
Accuracy
Prediction error is measured as nMAE (normalized mean absolute error) against actual generation, per plant and over time.
5-7% nMAE
intraday nowcast, 60-minute horizon, 5-minute granularity
9% nMAE
day-ahead forecast, 15-minute granularity
Interested in PV Plant Health Monitoring?
The data collector already reads output from your inverters. The same models that predict generation can compare what each inverter delivers against what the conditions allow.
Where a string or an inverter falls behind, you see it.
See the Difference on Your Own Site
We install SkyEye on two of your PV plants and run it alongside the forecasts you use today. You measure the difference in EUR on your own site, and then decide about the rest of the portfolio.