• The Farmyard Offices, Mountain Honey Estate, 74 Sterkfontein avenue, Doornkloof, Pretoria, Gauteng, South Africa
  • enquiries@oneenergy.co.za
  • 0861 4328 464 or 0861 HEATING


Who are we?

Launched in August 2011, the One Energy Group is the largest and most successful Renewable Franchise network in South Africa with a national footprint of OVER 30 branches as at the beginning of January 2017

One Energy constantly evolves our product solutions in line with new technologies, providing one of the most comprehensive renewable energy offerings for the residential and commercial sectors. Our suite of renewable energy solutions includes heat pumps, solar water heating systems, photovoltaic (PV) systems and low energy lighting, backed with full consultancy services. We provide practical and methodical plans that can be phased in over time to deliver the optimum energy efficiency and cost savings for your home or business. We only deal with premium suppliers with best-of-breed quality products and a track record of honouring warranties.

Our focus

Our driving business philosophy is summed up in two words – PERFECT INSTALLATIONS. With over 8000+ successful installations completed, we are extremely proud of our proven track record and unquestionably the highest service levels in the industry.

If you’re an aspiring eco-preneur, One Energy offers one of the most exciting opportunities to become part of the renewable energy wave which is still in its infancy in South Africa. Be part of a growing group of franchises focussed on providing one of the most comprehensive renewable energy ranges for domestic, retail and commercial customers.

With an established network of more than 30 Branches, One Energy will continue to systematically expand this footprint to increase the network to a maximum of 59 branches countrywide. Our primary objective is to remain the most relevant renewable energy group in the country and to focus our collective capability on the massive demand for renewable energy solutions which provide consumers with an escape from the ever increasing price of grid electricity.

why choose us?

  • 01

    Established 2011

    The One Energy Group has rapidly grown to be the largest and most successful Renewable Franchise network in South Africa

  • 02

    Over 30 National Branches

    With a national footprint of OVER 30 branches as at the beginning of January 2017

  • 03

    Over 8000 installations Completed

    Our Renewable Energy products include Heat Pumps, Solar Water Heating systems, Photo Voltaic systems and Low Energy Lighting systems

  • 04

    Perfect Sans Compliant Installations

    Our installations comply with the latest SANS building regulations

Meet the Directors

Mark Willoughby

Mark is a Geologist by profession and had a long corporate career in a number of major corporations including Air Products and the Tongaat Hulett Group, working his way through the ranks early in his career from sales rep to Marketing and Sales Director. After terms as a director with the Chubb and Zimco Groups, Mark started his own business development company, Spearhead Outsourcing in 2005 of which he remains CEO. Seven years ago he became involved in the renewable Energy Sector after acquiring a 25% shareholding and becoming a director in Solartech Energy Technologies. After two years, Mark sold his shares in Solartech and co-founded the One Energy Group in June 2011.

Greg Hart

Greg graduated from the University of the Witwatersrand in 1985 with a BA degree and then continued his studies graduating with an LLB post graduate degree in 1987. After being admitted as an advocate he worked in the legal profession for eight years. he co-founded a printing company which he ran with two partners for 18 years before selling his shares and joining CDD. He helped build CDD from a company which started off in electronics development and quickly grew into the renewable energy arena. CDD was appointed to assist the One Energy franchise network with mostly rooftop scale PV systems. As a result of the collaboration with the One Energy network CDD, was granted Accredited Schneider Electric Solar Integrator status and then Solar Expert status