Grid-connected photovoltaic power system Solar energy gathered by photovoltaic solar panels, intended for delivery to a power grid, must be conditioned, or processed for use, by a grid-connected inverter. Fundamentally, an inverter changes the DC input voltage from the PV to AC voltage for the grid. This inverter sits between the solar array and the grid, draws energy from each, and may be a large stand-alone unit or may be a collection of small inverters, each physically attached to individual solar panels. See AC Module. The inverter must monitor grid voltage, waveform, and frequency. One reason for monitoring is if the grid is dead
Merge Module configurable merge modules. Such merge modules contain certain values that can be set to specify how the module behaves in your installation. For example, the author of the configurable merge module may allow attributes to be set on components, enable or disable isolated components, specify a bitmap for a dialog, or specify how a custom action is run. Configurable merge modules are supported only by Windows Installer 2.0 or higher. There exist a number of pre-created merge modules which install commonly used Microsoft software packages, such as MDAC, ActiveX controls, MFC, SAPI and DCOM. Merge Module A merge module is