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Solar
Inverters , Chargers, Generators
There are three types of solar system :
STAND ALONE : A stand alone system is typically used when there is no public electricity power available. This type of system is
fully independent of the power grid and therefore there is no interaction whatsoever with the power grid. The size of the solar array,
other system components and the battery reserve capacity is dictated by the electrical usage of the property, the amount of reserve
for periods of little or no sun and the climatology of the area. These systems start at about R50 000 for a relatively small, but
expandable system, however very small systems can be as low as R25 000. This type of system has no restriction and can be
installed practically anywhere.
GRID-TIE : Most popular in Europe. This system does not have a battery or related battery equipment. It has one function only. It
feeds all electric power generated by the solar panels through a mains synchronized high quality inverter and offsets the power you
would normally consume from the electricity company. It slows, stops or reverses your electricity meter depending on the time of day,
the loads present and the size of the solar system installed. This is an extremely popular system because there are no batteries to
replace and the system costs less than its "grid-interactive" counterpart. For areas where there are few electricity power failures this
is an ideal system. These systems are expandable. They are simple in nature, comprised primarily of the solar panels and mains
synchronized high quality inverters.
At the moment, this system is still illegal in South Africa, with the exception of systems producing 1 megawatt or more and which is
approved by Eskom or the relevant authorities.
GRID-INTERACTIVE : This system has a battery and additional controls. It can either feed into the electricity meter to slow or in
some cases reverse it (depending on the meter) when excess power is present and it can provide back up power during electricity
failures. This is basically the same type of system used in homes that are completely off-grid. Depending on the size of this system
and the appliances or devices requiring power, it can support an entire home or just the items that are considered the most
necessary during power failures. These systems are more expensive because of the battery reserve capacity and additional controls
required in the system. Typically, depending on the amount of battery reserve, these systems cost about 50% or more than a
comparable Grid-tie system, however in areas with frequent electricity failures these fully automatic, silent power systems is a must
in South Africa. These systems start at about R50 000 for a relatively small, but expandable system.
Solar
Inverters , Chargers, Generators
There are three types of solar system :
STAND ALONE : A stand alone system is typically used when there is no public electricity power available. This type of system is
fully independent of the power grid and therefore there is no interaction whatsoever with the power grid. The size of the solar array,
other system components and the battery reserve capacity is dictated by the electrical usage of the property, the amount of reserve
for periods of little or no sun and the climatology of the area. These systems start at about R50 000 for a relatively small, but
expandable system, however very small systems can be as low as R25 000. This type of system has no restriction and can be
installed practically anywhere.
GRID-TIE : Most popular in Europe. This system does not have a battery or related battery equipment. It has one function only. It
feeds all electric power generated by the solar panels through a mains synchronized high quality inverter and offsets the power you
would normally consume from the electricity company. It slows, stops or reverses your electricity meter depending on the time of day,
the loads present and the size of the solar system installed. This is an extremely popular system because there are no batteries to
replace and the system costs less than its "grid-interactive" counterpart. For areas where there are few electricity power failures this
is an ideal system. These systems are expandable. They are simple in nature, comprised primarily of the solar panels and mains
synchronized high quality inverters.
At the moment, this system is still illegal in South Africa, with the exception of systems producing 1 megawatt or more and which is
approved by Eskom or the relevant authorities.
GRID-INTERACTIVE : This system has a battery and additional controls. It can either feed into the electricity meter to slow or in
some cases reverse it (depending on the meter) when excess power is present and it can provide back up power during electricity
failures. This is basically the same type of system used in homes that are completely off-grid. Depending on the size of this system
and the appliances or devices requiring power, it can support an entire home or just the items that are considered the most
necessary during power failures. These systems are more expensive because of the battery reserve capacity and additional controls
required in the system. Typically, depending on the amount of battery reserve, these systems cost about 50% or more than a
comparable Grid-tie system, however in areas with frequent electricity failures these fully automatic, silent power systems is a must
in South Africa. These systems start at about R50 000 for a relatively small, but expandable system.