interMET has a broad experience on wind and solar power. We can help you with the following services and products:
We have a long history of anemometric tower installation all over the country. Some of them are several meters tall with different levels of measurement. We install from the classical to the sonic anemometers. Thanks to our experience on general meteorological measurements, we usually complement observations with temperature, relative humidity, pressure and others.
We have been one of the first teams using SODAR for wind profiling in Spain. We have worked with some different equipments and followed the evolution of this fantastic method for wind profiling. We know the advantages and disadvantages of using SODAR and will advise you for the right choice.
We also were one of the first teams deploying a LIDAR for wind profiling in a wind farm. The performance of LIDAR is different than other profiling techniques. We can advise you, install and train your team for having data in a couple of hours at any terrain.
We have installed dozens of four component radiometer and different class of pyranometers. We have experience with the most fundamental theory of solar radiation and used atmospheric radiative transfer models, orographic shading modeling and other simulation tools.
Clouds height and fog detection
We are able to use instruments to better assess your solar resource like ceilometers, LIDAR, towers and cloud imagery.
Resource assessment with the right tools is now performed in a routine basis at any medium size company. For this, you just need good reference measurements and a trained team using the right tool. But in case you have difficulties with a very specific project, a very local phenomena or a site is giving you a headache , then we might be able to help you. CFD, WRF or basic computational physics might give you a hand. We will be pleased to help you.
When you are immersed into the electricity market, then you need to be reliable with your production. General purpose weather forecasting is not able to give you enough accuracy and resolution for your application. In case you need to develop or improve your forecasting system, we might be able to help you. Our background is atmospheric physics, we might be able to help you to understand your phenomena and model its dynamics. A good forecast will help you not only for the market, also to schedule the maintenance and, with a longer horizon, prepare for good or bad years.
Met masts with mechanical anemometers and wind vanes have being the standard for wind power assessment during many years. This measuring principle relies on the conversion of the wind energy into mechanical energy that anemometers and wind vanes convert to an electric signal proportional to wind speed or wind direction. Like any other measuring technique, anemometers and wind vanes have their advantages and disadvantages. One of the limitations of anemometers and wind vanes is that that they need a solid structure to be held at a certain height, the other is that they take samples of wind almost in a single point. In the last decades, size of wind turbines have grown considerably. With this increment on rotor height, a more precise assessment of the wind profile is then necessary in order to make a better production forecasting. It is possible to use tall towers with sensors all their way up to 100 meters or more, but the increase of the costs of such towers increase considerably. This fact along with others like reliability, installation and maintenance costs and environmental impact make necessary to consider other measurement techniques that do not need towers. One option is to use a SODAR (SOund Detection And Ranging). They use the heterogeneities found on air to reflect ultrasonic sound pulses and retrieve their velocity using the Doppler effect theory. SODARs are at ground level but can reach very high levels of the atmosphere, depending on their configuration. SODARs specially focused on the first hundreds of meters of the atmosphere have become in the last years very helpful on the wind energy resource area.
We ended up in the midle of the field installing something closer to a spaceship than to a meteorological instrument. Looking at that wiper connected to a tank of water did not help much, but it worked! Results from this remote sensing instruments still have us thinking that the physics we learn at university really work!