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Innovative Energy & Research | ISSN: 2576-1463 | Volume 7
Renewable Energy and Resources
Energy Materials and Fuel Cell Research
2nd International Conference on
&
August 27-28, 2018 | Boston, USA
Notes:
PV as a major contributor to the 100% renewably powered world
Only a few years ago it was difficult to explain a world, powered 100% by renewables only – not only electricity but all
secondary energy needs, including transportation, heating, and cooling as well as industry needs. The major reason for
this was that the production cost for electricity from wind and solar was – although characterized as most elegant - much
too high and electricity storage not seen as an option at all. Only with large centralized solar concentrating systems together
with hydrogen production (hydrogen economy) or a world-wide distribution system (using high voltage DC current grids)
a renewably powered world was seen potentially possible in the very long run. With the rapidly declining cost per produced
kWh from PV and wind, together with the push from the automotive sector for Li-ion batteries which also results in a quick
reduction of electricity storage cost, there is now – including IoT (Internet of Things) - a new horizon open how to serve
man-kinds energy needs rather quickly with renewables only. After analyzing today’s energy needs and how they are served
with primary (fossil, nuclear and renewables with ~150 PWh, P=10~15) and secondary energy (electricity, fuel, (process)-heat
with ~90 PWh), the future demand for secondary energy is analyzed. Today’s energy inequity will be changed to a situation
where each person on the globe will have a similar energy usage per year, comparable to the living standard today in the
industrialized world. An increase in energy efficiency by a factor of 3 will be explained. The global population for the future
world is estimated to be ~10 billion according to UN statistics. With this, the future secondary energy offering has to be ~150
PWh per year. The portfolio of renewable energy technologies is discussed and their respective share analysed. PV is seen as one
of the prominent technologies in the future, especially when comparing their production cost – more precise: Levelized Cost of
Energy - compared with clean fossil and new nuclear power plants, even when including the necessary electricity storage cost.
The crucial role for new materials and processes for future solar cells and modules together with the parallel development of
storage devices and fuel cells is emphasized. The transition towards 100% renewable energy makes most sense economically,
socially and from an energy security point of view. This and the timely coincidence of several break-through technologies will
trigger the transformation towards a 100% renewably powered world quicker as many expect also on a global level.
Biography
Winfried Hoffmann studied solid state physics, diploma in superconductivity and finished with a PhD-thesis in biophysics (laser flash photolysis). He started his
industrial career in 1979 at NUKEM/RWE in the area of CdS/Cu2S – Thin-Film solar cells and modules, amorphous Silicon as well as Dye Solar Cells. In the mid-
1980s and 90s, a pilot production for MIS-inversion layer c-Si solar cells and large area modules was put in operation. From 1994 he served as Managing Director
to "Angewandte Solarenergie - ASE GmbH" (JV DASA and RWE). In the same year the acquisition of 100 % shares of Mobil Solar as a subsidiary company was
done with special focus on their developed ribbon EFG technology. In the late 90s the company was renamed RWE Solar and was one of the worldwide 5 biggest
production companies. The first inline PE-CVD machines for SiN were developed and built in these years. In 2007 he joined Applied Materials to become Chief
Technology Officer and Vice President of the Solar Business Group and member of the Management Board of the German-based Applied Materials GmbH. For
many years he was a member in the supervisory board of listed companies (SMA Solar Technology AG and SolarFabrik AG) and was also active in numerous
Research Institutes (FhG-ISE, ISFH, Helmholtz Center Berlin, ZSW, and DLR). He served many years in solar associations in order to convince politicians to support
the PV market development (German BSW Solar and European EPIA, now SolarPower Europe). Since 2011 he gives lectures about Renewable Energy at the
universities Konstanz and Freiburg. In 2012 he received the John Bonda prize from EPIA and the prestigious “European Becquerel Prize for Outstanding Merits in
Photovoltaics” from the European Commission. The World Renewable Energy Network (WREN) awarded him as “Solar Pioneer” in 2014.
Winfried Hoffmann
Applied Solar Expertise-ASE, Germany
Winfried Hoffmann, Innov Ener Res 2018, Volume 7
DOI: 10.4172/2576-1463-C2-005