NOVELTY - A housing (6) supports concentrator assemblies, photovoltaic cells and heat sinks forming a photovoltaic power generating module. A secondary servomechanism independently aligns each power generating module for correcting structural grid deformations, misalignment and tracking errors, keeping solar radiation focused on the photovoltaic cells. The concentrator assemblies, structural members, structural grid, power generating module, primary servomechanism, secondary servomechanism, photovoltaic cells and heat sinks have an integrated relationship.    USE - Photovoltaic array for concentrated solar energy generator.    ADVANTAGE - Utilizes sensors, digital controllers and digital communication for monitoring and digitally communicating varying physical parameters from each module to central computer such that information can be utilized to monitor module state for maintenance purposes, and can also be used as position input for primary servomechanism control algorithm. Provides low cost power line or wireless communication device in each power generating module, forming reliable communication network connecting between each power generating module and primary controller computer. Provides modular photovoltaic array with self aligning power generating modules designed to correct focus misalignment caused by static and dynamic structural deformations of array by utilizing secondary servomechanism for each power generating module, thus automatically keeping photovoltaic cells focused and fully illuminated. Provides low cost heat sink specially optimized for dissipating heat from photovoltaic cell to environment by natural convection and by low speed wind when installed in large photovoltaic array. Provides power converter within each power generating module that converts voltage and current generated by module for maximum power transfer to electrical grid. Heat sink has good heat exchanging efficiency and minimum weight, is not sensitive to wind direction and is robust enough to withstand desert storms without degradation. Heat pipe is gravity-assisted such that no capillary liquid pumping is required and cost of manufacturing heat pipe is reduced. Includes high efficiency switching power converter that automatically controls module output voltage for maximum power transfer at all times even if part of photovoltaic cells within module are less efficient due to dust, partial shadowing, lens damage, cell contamination or aging. Power conversion within each module compensates for temperature differences expected between different areas on array, thus power generating module can automatically maximize electrical output to array grid at any time of its life span. Power generating module can be replaced with new module at any time without matching issues.    DETAILED DESCRIPTION - The planar structural grid is defined by structural members connected to one another and defining spaces between the structural members for a multitude of power generating modules. The structural grid is positioned by the two-axis primary servomechanism to keep incident solar radiation perpendicular to the plane of the structural grid. Each concentrator assembly has solar concentrating devices e.g. lenses (5), reflectors directly supported by the structural members having sufficient structural accuracy and rigidity to keep all the concentrating devices optically aligned with a common optical axis. The photovoltaic cells are mounted on the heat sinks and receive concentrated solar radiation from the concentrating devices. An INDEPENDENT CLAIM is included for a die for molding a heat sink.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a power generating module with multiple concentrating lenses and multiple photovoltaic cells mounted in a common housing with a two-axis rotary servomechanism.    Lenses (5)    Housing (6)    Secondary servomechanism motors (12,13)