ART TEC to release new solar differential temperature controller in November 2010

New DTC-D temperature controller for small solar thermal systems operates from the same solar panel that powers circulation pump(s)

Availa

ble in November 2010, ARTTEC Solar's new model DTC-D solar differential temperature controller is designed specifically for PV powered collector circulation pumps used in solar heating systems. This digital controller includes an internal battery backup that allows the controller to continue to display current temperatures and record and max/min temperatures in the absence of solar power for several days. The controller's backlight makes it easy to read in dark utility rooms. Features include max temperature shut off, with optional over temperature audible alarm. Freeze alarm with optional freeze pumping for systems that operate from batteries. Resettable max/min display of recent temperature extremes. Front panel controls allow easy changes to settings and manual override of pump to on, off and auto modes.

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Kipp & Zonen - DustIQ the novel soiling monitoring solution for solar panels

Kipp & Zonen - DustIQ the novel soiling monitoring solution for solar panels

Soiling of the panel glass is one of the major problems in the rapidly expanding solar energy market, with the attendant loss of efficiency and reduction in performance ratios. Now, there's a new, simple and very cost-effective alternative. Based on Kipp & Zonen's unique Optical Soiling Measurement (OSM) technology, DustIQ can be easily added to new or existing solar arrays and integrated into plant management systems. The unit is mounted to the frame of a PV panel and does not need sunlight to operate. It continuously measures the transmission loss through glass caused by soiling, so that the reduction in light reaching the solar cells can be calculated.