HelioExpect
    Forecasting

    From 15-minute dispatch to 14-day forecast.

    15-minute to 14-day generation forecasts for solar and wind. ML-corrected predictions delivered via dashboard, email, or FTP. Real-time comparison with actuals drives continuous improvement. Powers real-time market bidding, grid imbalance management, and schedule deviation compliance.

    helioexpect.com/app/forecasting
    Short-term Forecasting
    15-min → 14-day horizon
    Live
    98%
    Accuracy
    15min
    Update freq
    14d
    Horizon
    P50 / P75 / P9098% accuracy
    98%
    Forecast accuracy
    15min
    Update frequency
    14days
    Forecast horizon
    30%
    Penalty reduction
    Inside the product

    See the forecast on a real plant.

    Live screens from a production deployment — the same workspace your operators see.

    monitor.helioexpect.com/plant-monitoring
    Plant monitoring view showing actual vs expected energy across the month, with sensor trust index for pyranometer and satellite
    Actual energy vs model expectation across the month. GHI sanity-checked against pyranometer and satellite — the platform tells you which input to trust.
    Core capabilities

    Solar forecasting across a 14-day horizon, refreshed every 15 minutes.

    Plant-level forecasts trained on your SCADA history. GraphCast satellite imagery, cloud-motion vectors, and ML bias correction validated against each site's actual generation — continuously.

    Read the docs

    AI weather modeling + ML correction

    7-day MAPE98%

    Continuous validation + 14-day horizon

    15min
    Update freq
    14d
    Horizon

    Wind Power Forecasting

    Turbine-level wind generation forecasts with wake-effect modeling, met-mast integration, and the same ML-correction loop used for solar. Single platform for hybrid solar + wind portfolios.

    Interactive Dashboard

    30%
    Penalty reduction
    3
    Delivery channels

    Email & FTP Delivery

    Automated forecast reports via email at scheduled intervals. Secure FTP/SFTP delivery to your existing systems and workflows. Multiple formats: CSV, Excel, PDF, JSON.

    BESS Dispatch Forecasting

    Charge/discharge schedules for co-located battery storage. Time-of-Day arbitrage windows, peak-shaving setpoints, and grid-backup runtime projections.

    Flexible delivery

    Get forecasts your way.

    Choose how you want to receive your solar forecasts — via interactive dashboard, automated email, or direct FTP integration. Our system continuously compares forecasted values with actual generation, automatically adjusting ML models for improved future predictions.

    Integration guides
    Trading Intelligence

    Upload your schedule. Get back penalties + revenue.

    Built into Short-term Forecasting at no extra cost. Drop in your day-ahead schedule and the Trading Intelligence sub-feature returns penalty exposure, revenue at risk, and the optimal rebid window — computed against our 15-min forecasts.

    Step 1

    Upload schedule

    CSV, XML, or API push of the schedule you've already committed to the exchange.

    Step 2

    Run against forecast

    We score your schedule against our 15-min forecast every 15 minutes. Penalty exposure refreshes live.

    Step 3

    Rebid or settle

    Get back revenue at risk and the optimal rebid window — directly inside the dashboard or via API.

    Wind

    Hub-height modelling through turbine power curves, with wake losses and ramp event detection.

    See wind forecasting

    Bankability

    Project finance, lender underwriting, PPA negotiation. 25-year horizons with confidence bands.

    P50 / P75 / P90 yield

    Annual Budget

    12-month rolling forecasts. Monthly recalibration. Push to trading desk and CFO dashboards.

    See long-term forecasting
    Forecasting documentation

    Explore complete forecasting documentation.

    Dive into detailed setup guides, integration references, accuracy best practices, and workflow examples for the HelioExpect Forecasting Engine. Learn how to configure custom weather inputs, model sub-arrays, and automate delivery to your stakeholders.

    Get started

    Book a 30-minute walkthrough using a plant like yours.

    Talk to the team. We'll show you forecasting accuracy running live on plants similar to yours.

    See case studies