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Bernt Lorentz expands Etatrack series with two new models
The one-axis tracking system Etatrack active 1000, from Bernt Lorentz GmbH &
Co KG, has two new siblings: the smaller Etatrack active 400, which has been
available since January, can accommodate around 4 m2
of module surface area and therefore around 400 and 500 W, depending on module
type. These two systems were joined by a larger model, the Etatrack active
1500, which is designed for a maximum of 15 m2
and around 2 kW.
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© Bernt Lorentz GmbH
& Co. KG
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Growth: The Etatrack active 400 and Etatrack active 1500 expand Bernt
Lorentz GmbH's product range.
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Both systems essentially share the same technical construction:
sensorless control, automatic east-west tracking (azimuth) with 90° pivoting
angle as well as a manually adjustable vertical angle of between 0° and 45°. In
the case of the 1500 type, the module tray is supported by a diagonal guard on
the tower. According to the manufacturer, the smaller system can withstand wind
speeds of 120 km/h, while the larger brushes aside winds at 150 km/h.
The Etatrack series, which initially consisted of just two passive
thermohydraulic-driven systems, was originally designed to provide electricity
to Bernt Lorentz's solar pump systems. This explains the system's ability to
function in an off-grid environment. The electronic components and servomotor
are driven by solar modules with 24 V of operating power. The 400 model is
designed for smaller pumps and can be easily shipped: »That works also by
airfreight,« says company employee Martin Schulze.
On the other hand, Schulze says that the design of the large Etatrack device is
not only for stand-alone systems, but is »also a reaction to what is currently
being done in Germany.« The device is aimed at helping to fuel the market for
grid-connected systems on undeveloped areas. Until now, the systems haven't
sold, but negotiations are underway for initial projects. The manufacturer is
convinced that the first large-scale Etatrack system will come on line this
year. The pretax price for all Etatrack active systems is nearly €855 ($1,132)
per kW system power (including delivery).
Bernt Lorentz GmbH & Co. KG
Heidekoppel 16
24558 Henstedt-Ulzburg, Germany
phone +49/93/7548-0, fax -29
info@lorentz.de
www.lorentz.de
Jochen
Siemer
© PHOTON International, April 2005
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