Posts Tagged ‘single-axis solar trackers’

21 June

Grupo Clavijo Supplying Trackers For 40MW PV Installations in Chile & Opening Office in Santiago de Chile


Dear Friends, Visitors/Viewers/Readers,

Grupo Clavijo 1 Axis Solar Tracker Installation in Spain (credit: Grupo Clavijo)

(Please click on red links below)

Press Release

Grupo Clavijo begins supplying trackers for a 40 MW photovoltaic installation in Chile, and opens an office in the capital.

Spanish company Grupo Clavijo has begun supplying horizontal single-axis trackers for the Chañares project, an 40 MW installation in the Chilean region of Atacama, with Greenwood Biosar Chile Spa (Aktor Group) acting as the main EPC contractor.

Clavijo also is announcing the opening of an office in Santiago de Chile, to be led by sales manager Cristina Clavijo.

The horizontal single-axis trackers used in this installation feature high performance, robustness, simplicity and quick assembly. Adaptable to all terrain types, they support multiple configurations and monitoring options. They are currently among the most advanced horizontal single-axis trackers on the market worldwide, having already been installed by Clavijo in Eilat (Israel), Hanford and Fairfield (USA), Zuera (Spain) and the Halutziot project (Israel).

This project, paired with the new office, will consolidate Grupo Clavijo’s presence in Chile and will drive the development of photovoltaic projects in the country. Grupo Clavijo specialises in the design, manufacture, installation and maintenance of the most extensive range of photovoltaic structures and solar trackers on the market. With more than 480 MW installed worldwide, it is a benchmark for developers, installers and EPC contractors of photovoltaic projects around the world.

Grupo Clavijo Chile Office:

c/ Orinoco, 90 Torre 1 Piso 21

Nueva Apoquindo, Las Condes. Santiago (Chile)

T. +(56 2)


More information:

~have a bright and sunny day~

Gathered and posted by sunisthefuture-Susan Sun Nunamaker

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28 March

Sunshine For All of Us-Insolation



Dear friends and readers, here is the continuation from March 20, 2011 post on “There Is Plenty of Sunshine For All of Us”:

I  found a wonderful site that has explained the concept of  insolation with more graphical presentatioins: .  Various parts of the world or planet earth may also be seen through this collection of World Insolation Maps, available via:,or.r_gc.r_pw.&um=1&ie=UTF-8&source=univ&sa=X&ei=eLSFTZXBKu2C0QGOnvHOCA&ved=0CCUQsAQ.
To get a general idea of how much solar radiation there is available in USA, I’d like to share with you some data collected by U.S. Government of Scientific and Technical Information (OSTI) for different states, made available at this site, So, let’s take a look at some data together:  Firstly, if you’d click on the sunshine state of Florida (specifically Daytona Beach, FL), solar radiation for flat-plate collectors facing South at 0 degree tilt,  during the month of January, produces at minimum 2.7  kWh/m2/day, at maximum 3.7 kWh/m2/day (which average to 3.1 kWh/m2/day).   kWh/m2/day, kilowatt-hour per meter squared per day, is the unit of measurement for energy, in this case, for solar radiation.  Under similar circumstance in Chicago, IL (by clicking on Illinois), the measurement at minimum was 1.5 , at maximum was 2.1 and averaged to 1.8 in the month of January while in Alpena, MI, measurement at minimum was 1.4, at maximum 1.8, and averaged to 1.6 kWh/m2/day. To get an overview of how much solar radiation/sunshine there may be available for the month of January in USA, please take a look at the map below.  Definitely, there will be monthly and seasonal variations.

January PV Solar Radiation (Flat Plate, Facing South, Latitude Tilt) of USA

To determine how much, on the average, solar radiation may be available annually, we simply multiply the amount of   solar radiation or energy is available daily by 365. For  an example of a quick overview of the average annual solar radiation  data (for USA) produced by NREL (National Renewable Energy Laboratory) , take a look at this map located at this site:  Annual PV Solar Radiation (Flat Plate, Facing South, Latitude Tilt) .

Annual PV Solar Radiation (Flat Plate, Facing South, Latitude Tilt) of USA

Insolation is a measure of solar radiation energy received on a given surface area in a given time.  In the case of photovoltaics it is commonly measured as kilowatt hours per year per kilowatt peak rating.  In case any of you is wondering, peak rating is the amount of energy produced at the moment or instant when highest amount of solar radiation is produced at specifically given conditions.  Recall  my previous post (of March 20, 2011) regarding single or 1- axis vs. dual or 2-axis tracking  device, these trackers are great for optimizing the amount of energy produced for current pricing structure of the solar modules/panels/plates;dual or 2-axis tracker yields about 40% more power than fixed/flat plate (source: ) while single or 1-axis tracker yields about 20-30% more power than fixed/flat plate (source: .  But as the cost of solar modules/plates continue to drop,  the desirability of these tracking devices may also diminish for the fact that there is added initial costs and movable parts (translating to higher maintenance cost).  If solar modules/plates are cheap enough, it may eventually be more economically feasible to simply add more solar modules/plates rather than adding tracking devices. Please keep in mind that the economic feasibility will continue to change as the cost of solar module/panel/plate decreases and price of oil increases.

My friends in USA and  throughout planet earth, we really do have plenty of sunshine, waiting to be tapped.  So let’s try to put it to use.  It is true that at different parts of the world, there may be different  level of availability.  I guarantee that the cost of using solar energy/technology will continue to drop.  The sooner that more of us start to use solar energy, the faster the cost will drop.  More discussions on economic feasibility and various contributing factors will be disclosed in my future posts.  I hope you will have a sunny day, wherever you may be….


Posted by sunisthefuture-Susan Sun Nunamaker,
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