Grid Solution: A grid refers to the interconnected electricity network that supplies electricity to homes and businesses from a central source of electricity generation, usually a central power plant (coal, nuclear, bio, etc.). This system relies on a network of power plants, transmission lines and distribution networks to deliver electricity to consumers. A Grid Solution is where the photovoltaic power generated is fed directly back into the main grid network, usually at an agreed fee paid by the receiving power company.

Please note that the specific implementation and configuration of these systems may vary depending on factors such as location, regulations and individual requirements.

Grid interconnection with emergency power supply: This type of power system is similar to a regular grid interconnection, but includes provisions for emergency power supply in case of power outages or blackouts. This usually includes backup power sources such as diesel or natural gas generators, battery storage systems or uninterruptible power supply (UPS) units. These backup systems are designed to provide temporary power until the main power supply is restored.

Please note that the specific implementation and configuration of these systems may vary depending on factors such as location, regulations and individual requirements.

Stand-alone grid: In a stand-alone grid, also known as an isolated electrical system, a local power source generates electricity independently (e.g. photovoltaics). This system is usually used in remote areas or on small power ‘islands’ where connection to a larger power grid is impractical. Power generation sources can include renewable energy systems such as solar panels, wind turbines or small power plants.

Please note that the specific implementation and configuration of these systems may vary depending on factors such as location, regulations and individual requirements.