Inverters
Solar modules produce a direct current. An inverter converts the direct current into a grid-compliant alternating current. This means that the electrical energy produced from solar energy can be fed into medium and/or low-voltage networks. According to the type of installation and power supplier, inverters can be used with or without integrated transformers.
In the past, central inverters were primarily used for larger installations and string inverters for small-scale installations. As a result of recent technical developments, inverter manufacturers have now begun to produce "TriPower devices" in the 10 - 20 kW power range, which are equally suitable for use in larger photovoltaic installations. For central inverters, the "outdoor devices" and stations in the high-power range (e.g. 1.6 -2 MW stations) have been developed in recent years. As with the TriPower devices, the objectives are to optimize efficiency and minimize total cost for future PV projects.
Since the end of 2009, delivery bottlenecks from inverter manufacturers, among others, have greatly curbed the growth of the solar market. The rapidly increasing, short-notice demand in combination with inadequate supplies of transistors and electronic chips has lead to massive delivery bottlenecks and delivery delays for all high-quality inverters. Experts predict that the situation on the procurement market will continue to decline in the medium term. Furthermore, new manufacturers have entered the market, which have used technical innovations to provide interim alternatives to the established inverters.
In the past, central inverters were primarily used for larger installations and string inverters for small-scale installations. As a result of recent technical developments, inverter manufacturers have now begun to produce "TriPower devices" in the 10 - 20 kW power range, which are equally suitable for use in larger photovoltaic installations. For central inverters, the "outdoor devices" and stations in the high-power range (e.g. 1.6 -2 MW stations) have been developed in recent years. As with the TriPower devices, the objectives are to optimize efficiency and minimize total cost for future PV projects.
Since the end of 2009, delivery bottlenecks from inverter manufacturers, among others, have greatly curbed the growth of the solar market. The rapidly increasing, short-notice demand in combination with inadequate supplies of transistors and electronic chips has lead to massive delivery bottlenecks and delivery delays for all high-quality inverters. Experts predict that the situation on the procurement market will continue to decline in the medium term. Furthermore, new manufacturers have entered the market, which have used technical innovations to provide interim alternatives to the established inverters.
