EST- SG 1Year VIII • 2013

PRODUCT

CATALOG

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EST-SG1

EUROCODE EUROCODE

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Single-axis trackerN-S or E-W, active or manual and modular.”

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Photovoltaic panels accept both direct and diffuse light from the sky. The pan-els on standard photovoltaic trackers always gather the available direct light. The tracking functionality in standard photovoltaic trackers is used to minimize the angle of incidence between incoming light and the photovoltaic panel. This increases the amount of energy gathered from the direct component of the incoming light.

The physics behind standard photovoltaic (PV) trackers works with all standard photovoltaic module technologies. These include all types of crystalline silicon panels (monocrystalline, multicrystalline, polycrystalline) and all types of thin film panels (amorphous silicon, CdTe, CIGS, microcrystalline).

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Photovoltaic panels accept both direct and diffuse light from the sky. The pan-els on standard photovoltaic trackers always gather the available direct light. The tracking functionality in standard photovoltaic trackers is used to minimize the angle of incidence between incoming light and the photovoltaic panel. This increases the amount of energy gathered from the direct component of the incoming light.

The physics behind standard photovoltaic (PV) trackers works with all standard photovoltaic module technologies. These include all types of crystalline silicon panels (monocrystalline, multicrystalline, polycrystalline) and all types of thin film panels (amorphous silicon, CdTe, CIGS, microcrystalline).

The sun travels through 360 degrees east-west a day, but from the perspective of any fixed location the visible portion is 180 degrees during an average 1/2 day period (more in spring and summer; less, fall and winter). Local horizon effects reduce this somewhat, making the effective motion about 150 degrees. A solar panel in a fixed orientation between the dawn and sunset extremes will see a motion of 75 degrees on either side, and thus, will lose 75% of the energy in the morning and evening.

Rotating the panels to the east and west can help recapture these losses.

The sun also moves through 46 degrees north-south over the period of a year. The same set of panels set at the midpoint between the two local extremes will thus see the sun move 23 degrees on either side, causing losses of 8.3%.

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ESTSG1

MODULAR

INCREMENTALITY

DURABILITY

VERSATILITY

ECONOMY

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ECONOMY

The inherent robustness of their supporting structure and the simplicity of the mechanism also result in high reliability which keeps main-tenance costs low. Since the panels are hori-zontal, they can be compactly placed on the axle tube without danger of self-shading and are also readily accessible for cleaning.

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VERSATILITY

The system can accommodate different mount-ing heights relative to the slope of the land and/or different types of panel.

Earth anchored or driven-pile foundations allow installation in any terrain typology.

MODULAR The modular system allows to reduce the num-ber of parts and, optionally, to prepare the assembly of the parts from the mechanical workshop organizing the packaging to mini-mize the transport volume and facilitate that the gathering of work pieces takes place along its mounting point, which facilitates installation.

DURABILITY

The use of materials and standard profiles and hot dip galvanized coatings guaranteed qual-ity, ensures the durability of structures installed outdoors for a long period under normal use and exposure.

INCREMENTALITY

Even though a fixed flat-panel can be set to collect a high proportion of available noon-time energy, significant power is also available in the early mornings and late afternoons when the misalignment with a fixed panel becomes excessive to collect a reasonable proportion of the avail-able energy. Thus the primary benefit of a tracking system is to collect solar energy for the longest period of the day, and with the most accurate alignment as the Sun’s position shifts with the seasons. Generally the increase in energy production with azimuthal monitor collects 10% to 20% higher than fixed structures.The azimuthal followers can get up to 25%.

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SPECIFICATIONS AND FEATURES:

• Installation location: Land, after topographic and geotechnical analysis.• Drive types: Active or manual• Modules: All available in the market.• Position of the modules: Landscape or upright.• Type of modules fastening to the structures: Screws directly to profiles.• Snow load resistance: Depending on Eurocode, calculated for the specified area of the project.• Wind load resistance: Depending on Eurocode, calculated for the specified area of the project.• Regulations: Eurocode (At request of the customer we can apply specific local regulations).

• Foundation: Steel S 275 R.• Profiles: Steel S 275 R.• Screws: Steel galvanized with Dacromet ®. • Coating: Hot-dip galvanized (minimum 70 µm).• Coating warranty period: 40 years.• Lifetime design: Up to 50 years.• Product warranty: 10 years.

SPECIFICATIONS AND FEATURES

SYSTEM MATERIALSFastening between modules and structure:Steel galvanized screws with Dacromet®.

Bimetallic Capabilities:Due to the concentration of aluminum within the coating, good bi-metallic corrosion resistance with aluminum is accomplished.

Electrically Conductive:The high concentration of metallic flake enables DACROTIZED® parts to be electrically conduc-tive.