CAPE TOWN - The City of Cape Town is taking Energy Minister Mmamoloko Kubayi to court.
It wants to force her to allow the city to buy renewable energy.
Mayor Patricia de Lille told a council meeting that she's served papers on Kubayi.
There has been a lengthy battle between the minister and the city over the matter.
Local municipal suppliers may not buy energy directly from producers, unless Kubayi and the National Energy Regulator of South Africa gives them the go-ahead.
De Lille believes the minister is stalling as she wants to force everyone to buy from Eskom.
The mayor says the city wants to source at least 20 percent of its energy from renewable sources by the year 2020.