Metrological parameters plays significant role on the performance of solar panels in electrical power generation. To ascertain the extent to which ambient temperature, temperature of the panels, solar radiation were measured, recorded and analyzed at half-hour interval for five days, at the same period two solar panels were subjected to test, one being connected to a system of cooling leaving the other untouched. Measurement of both the output current and voltage were made from which the power output was calculated. The result shows that the power output was increasing as the solar radiation increased, which is clear indication that the entire photovoltaic process depend on the radiation intensity and environmental conditions. It was also observed that the efficiency of the solar panel with cooling system is slightly greater than that without cooling system. The efficiency and energy output of both solar panels were determined to be 15%, 13% and 477kWh, 449kWh respectively. The difference of 28kWh is not supposed to be neglected, because considering the difference of many days and many panels cannot be neglected. Also few approaches that have been proposed to reduce the effect of temperature on the solar photovoltaic system by choosing the appropriate configurations, by mounted on free standing frames, photovoltaic thermal collectors and building integrated photovoltaic arrays, respectively