The plants, which are planned for Erongo, Otjozondjupa and Hardap regions will have the capacity to produce 30 MW, NamPower said in a email response to questions. The company last week invited for tenders for the construction of three solar plants of 10MW each.
NamPower said renewable energies are an important part of an energy mix to provide a secure and affordable supply.
NamPower said it considers solar energy as an important part of the energy mix and thus the current call for tenders. The company did not disclose how much the plants will cost.
"Due to the intermittent nature of wind and solar PV it is however doubtful whether these renewable sources will ever be able to replace all conventional supplies, and it is believed that for many years to come both conventional and renewable energy sources will co-exist.
NamPower will thus continue, as opportunities arise, to utilize this resource in the energy mix," NamPower said.
NamPower said solar energy has been used in off-grid systems for a long time but are increasingly moving into grid connections.
"The non firm supply of renewable energy sources such as wind and solar PV plants is however a problem associated with these sources," NamPower said. "This is the beginning of the tender process and thus the timetable cannot be made public at this time. However such a plant could become operational towards the end of 2015," NamPower said.