Interview with Dr. Christoph Hartnig, Head of Renewables Marketing, Heraeus Photovoltaics Updated On Tue, Dec 11th, 2018 by Saurenergy Heraeus Photovoltaics – a leading technology solution provider for the renewable energy industry. In an exclusive interview with Saur Energy International during the 12th Edition of Renewable Energy India (REI) Expo 2018 at Greater Noida, Dr. Christoph Hartnig, Head of Renewables Marketing, Heraeus Photovoltaics shared his views on various topics including company’s product offerings, […] Read more