There are two options for those looking to install solar; either grid connected systems which connect to the electrical grid, or off-grid systems which are independent and often rely on battery storage during low light periods. There are pros and cons to both. The most commonly installed systems are grid connected systems which are able to consume electricity from the grid during low light periods as well as feed electricity back into the grid when surplus power is produced from the sun. However, grid connected systems are restricted by the fact that if the grid has issues and there is a power outage, grid systems become inactive for safety reasons. As well as this they are simply not independent from energy providers. Off-grid solutions however are separate electrical circuits which are powered solely by solar energy and require battery storage to provide power during the night or low light periods. Off-grid systems commonly utilise deep cycle home batteries and therefore store energy produced during the day, which is then used during periods when the solar system is unable to produce its own power. By combining the best of both worlds, many people opt for a hybrid system.