Hybrid systems, like the name implies, combine two or more modes of electricity generation together, using renewable technologies such as solar photovoltaic (PV) and wind turbines. Hybrid systems provide a high level of energy security through the mix of generation methods, and often will incorporate a storage battery system and/or small fuelled generator to ensure maximum supply reliability and security.

While the most expensive part of going solar is paying for the equipment, it still only represents 25 percent of the overall expense. Soft costs, or the outlays that installers spend just trying to find you and appeal to you, also contribute a significant percentage.

Island inverters are used in isolated systems where the inverter draws its DC energy from batteries charged by photovoltaic arrays. Many stand-alone inverters also incorporate integral battery chargers to replenish the battery from an AC source, when available. 

A solar inverter, or PV inverter, converts the variable direct current (DC) output of a photovoltaic (PV) solar panel into a utility frequency alternating current (AC) that can be fed into a commercial electrical grid network. It is a critical component in a photovoltaic system, allowing the use of ordinary commercial appliances. 

Typically used in simple applications, such as rural power demands. DC systems are the most basic form of (PV) energy but can be used to obtain optimal performance without spending large sums of money.