Patent ID: 8308351

Claim:
An apparatus for measuring the temperature coefficient of a concentrator photovoltaic module, the apparatus comprising: a solar simulator for emitting collimated light which simulates the sun light; an environment chamber including: a case with front opening and rear opening; a gate operable to close the front opening of the case before the temperature of the interior of the case reaches a desired value and open the front opening of the case to allow the collimated light to reach the concentrator photovoltaic module located in the case after the temperature of the interior of the case reaches the desired value; at least one door operable to open the rear opening through which the concentrator photovoltaic module is located in the case and close the rear opening of the case before the temperature of the interior of the case reaches the desired value; and a holder located in the case and operable to hold the concentrator photovoltaic module; a temperature controller connected to the case; a reference cell located in the case; a measuring unit including a first cable electrically connected to the concentrator photovoltaic module and a second cable electrically connected to the reference cell.