Grid Aggregations

Thousands of PV systems, rolled up to your regions or grid assets, actuals and forecasts updated every 10-15 minutes.

Solcast's Grid Aggregations are designed for estimating the aggregate power output from a fleet of PV systems. For example, all systems in a given region, or a set of systems connected to a physical or virtual power asset.

If you are looking to improve your electricity load forecast for balancing or trading purposes, manage solar-related network congestion and voltage changes, or manage virtual power plants and microgrids, then Grid Aggregations may be of use to you.

We take care of the cloud and irradiance modelling over the specific region, and the performance and spatial distribution of the PV fleet. Our customers get an actual and a forecast in MW or performance units, updated every 10 or 15 minutes, and a historical timeseries if required. Solcast runs over 750 such aggregations globally in real time, built up from millions of PV and grid assets.

Above: A Solcast Grid Aggregation in South Australia where PV power output totals are aggregated according to their transmission connection point. South Australia has some of the highest rooftop solar penetration rates in the world.

Depending on your use case and what installations metadata you have available you can choose regional approaches to gain insight at market level, or you can map power outputs back to your grid by specifying network specifics (e.g. HV substation, LV substation, feeder).

Our customers use Solcast’s Grid Aggregations to:

  • Train and improve load forecasting models to include the impacts of behind-the-meter solar generation
  • Manage low voltage network short and medium term demand forecasting, including planning for periods of minimum demand
  • Validate and tune models based on upscaling techniques or other surface data measurements
  • Manage spinning reserve or backup power supplies in tight demand situations or for remote grid applications
  • Dynamically control virtual power plants, including for the orchestration of low voltage network support services
  • Avoid the complexities of building in-house solutions, or to benchmark or improve existing in-house solutions
  • Account for the impacts of cloud cover on specific periods of demand, such a early morning or during periods of low demand and high solar production

You can get started on your first grid aggregation quickly and trial it by privately sharing very basic PV installation metadata (have you signed up for our API?). Get in touch with us for a sample upload file format, and to discuss your use case in more detail. Once your aggregation goes live in our system (usually within 2-3 days), we’ll provide you with unique forecasting and estimated actuals API endpoints for your evaluation.

Try it now

Contact us

Please direct enquiries to James Luffman
or Nick Engerer

Join the discussion on the Solcast Community Forums.