Corporate energy users

Forecaster introduction

Forecaster introduction

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Accurate predictions of renewable energy production help you manage your wind or solar plant, plan maintenance and get the best price for your energy.

Unlike conventional energy plants, the output of a renewable power plant is as changeable as the weather. A wind farm can’t generate energy without a breeze, while cloud cover impacts a solar power plant’s generating capability.


Accurately anticipating weather conditions ensures plant owners and operators get the most out of their facilities. System operators need to know how much energy a renewable plant can deliver and traders strive to get the best price for every megawatt hour.

Predicting renewable energy production
Previously known as GH Forecaster, DNV GL's Short-term energy forecasting service is vital for effective management of your renewable assets. It provides accurate, up-to-date predictions of energy generation through in-depth, site-specific weather forecasting and our unparalleled understanding of renewable energy systems. 

Our highly skilled and diversely experienced team makes use of base weather data from the world's top weather models, downscaling and localizing them to produce the most accurate forecasts for your particular power plant. Through detailed analysis and modeling, we build a model for each and every plant we forecast, accounting for machine specifics and layouts. We have forecasting experience in over 20 countries for over 50 GW of wind and solar capacity, and your forecast can be provided for any location across the globe.  

When and how you want it
Short-term forecasting is a flexible service comprised of Forecaster Now, Forecaster Live, Forecaster Plus and Forecaster Solutions. We can supply predictions of conditions hour-by-hour up to 15 days ahead, updated as frequently as every 5 minutes in a format of your choice:

  • Raw data in formats such as XML and ASCII or customized for your systems
  • Interactive graphs covering live forecasts and historical performance
  • Monthly reports summarizing accuracy, performance and the metrics you need

Your data can be delivered via email, sFTP, web services or accessed via our dedicated Short-term forecasting website, which is used every day in our customers' control rooms around the world.

Which Forecaster service meets your needs?
Check out the Forecaster Now, Forecaster Live, Forecaster Plus and Forecaster Solutions pages for more information about the benefits of each service level.


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Forecaster services

Check out the Forecaster Now, Forecaster Live, Forecaster Plus and Forecaster Solutions pages for more information about the benefits of each service level.

Forecaster Now

Validate your trading decisions to get the best price for your energy.

Forecaster Live

On-demand, 24/7 access to forecasts helps you to monitor energy output and schedule maintenance.

Forecaster Plus

Accurate forecasts guide you to make informed decisions relating to mission critical operations and to manage financial risk.

Forecaster Solutions

Fully customized forecasts give you the power to look at the bigger picture; whether you are testing measurement data hypotheses, need to acquire long range projections or carry out a grid integration study.

Related information

Have a look at our flyer, video and related services.

Forecaster Now portal

Are you a trader in the USA? Need an accurate, on-demand forecast?

Forecaster brochure

Learn more about the accuracy of Forecaster.

Operations control room video

Watch our short video which showcases our Operations control room. It contains a complete suite of information about a wind farm or portfolio of wind farms that are being managed by DNV GL on your behalf.

Smarter Operations

Smarter Operations means the delivery of technical services for safe and effective asset operation – applying an integrated approach to boost revenue and reduce costs. Learn more here.

Renewables integration

Supporting you throughout the entire renewable power plant development process from conception to operation.

Renewables asset management

Smarter renewables operation management helps maximize energy production, minimize downtime and reduce operating and maintenance costs.

Wind turbine inspections

Independent, objective inspections of onshore and offshore wind turbines keep all stakeholders in the picture.

GreenPowerMonitor, leading renewable monitoring and data management solutions

We offer a market-leading integrated solution set for the management and maintenance of renewable energy installations that includes hardware/firmware, software and services unmatched in the industry.

WindGEMINI digital twin for wind turbine operations

WindGEMINI online digital twin gives you 24/7 access to advanced wind turbine condition and performance analytics, enabling you to make informed wind operation decisions.

Software for design and analysis of offshore wind turbines

Offshore wind is emerging as a key growth area in the energy transition, simultaneously expanding growth whilst innovating to achieve project cost efficiencies.