Excelsior is a 142.8MW onshore wind power project. It is planned in Western Cape, South Africa. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the project is currently at the partially active stage. It will be developed in multiple phases. The project construction is likely to commence in 2018 and is expected to enter into commercial operation in September 2020. Buy the profile here.


The project is being developed by BioTherm Energy. BioTherm Energy and Thebe Investment are currently owning the project having ownership stake of 60% and 37.5% respectively.

Excelsior (Excelsior IB) consists of 9 turbines.

Excelsior (Excelsior II) consists of 20 turbines.

The Tubular Steel structure to be installed at the Excelsior (Excelsior IA), site are expected to be 90m high.

Development status

The project construction is expected to commence from 2018. Subsequent to that it will enter into commercial operation by September 2020.

Power purchase agreement

The power generated from the project will be sold to Eskom Holdings SOC under a power purchase agreement for a period of 20 years, starting from 2020.

Contractors involved

Xinjiang Goldwind Science & Technology is expected to render engineering procurement construction services for the Excelsior (Excelsior IA).

Excelsior (Excelsior IA) will be equipped with Xinjiang Goldwind Science & Technology GW 109/2500 turbines. The phase consists of 13 turbines with 2.5MW nameplate capacity.

For more details on Excelsior, buy the profile here.

About BioTherm Energy

BioTherm Energy (Pty) Ltd (BioTherm) is a renewable energy company that generates electric power from wind and solar projects. It offers various stages of development maturity across the wind and solar resources. It offers services such as investments and monetization of carbon credits. BioTherm’s projects include Aries solar photovoltaic, Klipheuwel wind, Konkoonsies solar photovoltaic, Dassiesklip wind energy facility and PetroSA biogas. The company’s projects are located in Northern Cape Province and Western Cape Province. It also operates and maintains a MethCap plant that generates electricity from biogas waste. The company works with governments, local partners and industry associations. BioTherm is headquartered in Fourways, South Africa.


GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.

This information is drawn from GlobalData’s Power Intelligence Center, which provides detailed profiles of over 170,000 active, planned and under construction power plants worldwide from announcement through to operation across all technologies and countries worldwide.