The inverter is the “brains” of the solar power system and therefore arguably the most important part. It converts the direct current produced in the cells to alternating current suitable for the electricity grid. The inverter manages the solar power system automatically shutting down and then re-starting the system if there is a blackout. It is important for output and return on investment to install a quality inverter.
SMA is the world’s leading manufacturer of inverter technology. The Sunnyboy, Sunny Mini Central and new high efficiency transformerless inverters are all made in Germany. They are reliable and user-friendly with easy to read screens. SMA inverters boast leading edge efficiencies of up to 98%. They are suitable for installation both indoors and outdoors. Complimentary data-logging devices are also available. SMA inverters have a 5 year warranty with an option to upgrade to 10 years.
Fronius has been engaged in solar electronics since 1992. Fronius IG inverters are made in Austria. The ingenious processor control combined with the powerful HF transformer extracts the maximum energy yield from all types of modules. The Fronius inverter’s wide voltage range means they are a very flexible inverter. They are suitable for installation both indoors and outdoors. Complimentary data-logging devices are also available. Fronius inverters have a 5 year warranty with an option to upgrade to 10 years.
Aurora inverters are made in Italy and are suitable for indoor and outdoor installation. They utilise high-efficiency power-conversion technologies, and high-speed independent Maximum Power Point Tracking (MPPT) channels, to increase the amount of usable power from any solar panel installation. Two-source inputs, with independent MPPTs, optimize power from multiple arrays facing in different directions. This optimized energy harvesting can significantly increase return on investment. Aurora inverters have a 5 year warranty with an option to upgrade to 10 years.
Xantrex is a Canadian multi-national company established in 1983. GT inverters offer high efficiency and outstanding energy harvest in a small, light modular design. The Xantrex are convection cooled so there are no fans that can fail. Xantrex’s reliability engineers use state-of-the-art chambers under extreme thermal and mechanical conditions to deliberately stress products and expose product flaws during the design stage before they reach the customer. Xantrex inverters have a 5 year warranty with an option to upgrade to 10 years.